Derek J. Dosdall, PhD

Languages

  • English

Academic Information

  • Departments: Surgery - Associate Professor
  • Divisions: Cardiothoracic Surgery, Cardiovascular Medicine

Academic Office Information

  • 801-587-2036
  • Nora Eccles and Richard A. Harrison Building
    Department of Surgery, Division of Cardiothoracic Surgery
    95 S 2000 E
    Salt Lake City, UT 84112

Academic Bio

Derek J. Dosdall, PhD, is an associate professor at the University of Utah in the Depatment of Surgery, Division of Cardiothoracic Surgery. He has adjunct appointments in the Department of Bioengineering and the Deparmtment of Internal Medicine, Division of Cardiovascular Medicine. He received his PhD in Bioengineering from Arizona State University and did postdoctoral training at the University of Alabama at Birmingham.

His research interests are focused on mapping of cardiac arrhythmias. He has developed chronic animal models of atrial fibrillation to investigate the substrate and conduction changes that occur in the cardiac tissue over time. He is working to determine the role of fibrosis in conduction disturbances and the development of atrial fibrillation. He is also studying the role of the specialized conduction system in the ventricles and the onset and maintenance of dangerous cardiac arrhythmias.

Education History

Type School Degree
Postdoctoral Training University of Alabama at Birmingham
Cardiac Electrophysiology
Postdoctoral Training
Doctoral Training Arizona State University
Biomedical Engineering
Ph.D.
Graduate Training Arizona State University
Biomedical Engineering
M.S.
Undergraduate Brigham Young University
Electrical Engineering. Minors: Physics, Math
B.S.

Selected Publications

Journal Article

  1. Yamashita K, Kholmovski E, Ghafoori E, Kamali R, Kwan E, Lichter J, MacLeod R, Dosdall DJ, Ranjan R (2019 Feb). Characterization of edema after cryo and radiofrequency ablations based on serial magnetic resonance imaging. J Cardiovasc Electrophysiol, 30(2), 255-262.
  2. Ghafoori E, Angel N, Dosdall DJ, MacLeod RS, Ranjan R (2018 Nov - Dec). Atrial fibrillation observed on surface ECG can be atrial flutter or atrial tachycardia. J Electrocardiol, 51(6S), S67-S71.
  3. Kholmovski EG, Silvernagel J, Angel N, Vijayakumar S, Thomas S, Dosdall D, MacLeod R, Marrouche NF, Ranjan R (2018 Nov). Acute noncontrast T1-weighted magnetic resonance imaging predicts chronic radiofrequency ablation lesions. J Cardiovasc Electrophysiol, 29(11), 1556-1562.
  4. Thomas S, Silvernagel J, Angel N, Kholmovski E, Ghafoori E, Hu N, Ashton J, Dosdall DJ, MacLeod R, Ranjan R (2018 Aug). Higher contact force during radiofrequency ablation leads to a much larger increase in edema as compared to chronic lesion size. J Cardiovasc Electrophysiol, 29(8), 1143-1149.
  5. Yamashita K, Hu N, Ranjan R, Selzman CH, Dosdall DJ (). Clinical risk factors for postoperative atrial fibrillation among patients after cardiac surgery. Thorac Cardiovasc Surg, in press.
  6. Yamashita K, Quang C, Schroeder JD, DiBella E, Han F, MacLeod R, Dosdall DJ, Ranjan R (2018 Jul). Distance between the left atrium and the vertebral body is predictive of esophageal movement in serial MR imaging. J Interv Card Electrophysiol, 52(2), 149-156.
  7. Jin Q, Wu L, Dosdall DJ, Li L, Rogers JM, Ideker RE, Huang J (2018 Jun). Effects of combination of sotalol and verapamil on initiation, maintenance, and termination of ventricular fibrillation in swine hearts. Cardiovasc Ther, 36(3), e12326.
  8. Panitchob N, Li L, Huang J, Ranjan R, Ideker RE, Dosdall DJ (2017 Dec). Endocardial Activation Drives Activation Patterns During Long-Duration Ventricular Fibrillation and Defibrillation.LID - e005562 [pii]LID - 10.1161/CIRCEP.117.005562 [doi]. Circ Arrhythm Electrophysiol, 10(12).
  9. Ghafoori E, Kholmovski EG, Thomas S, Silvernagel J, Angel N, Hu N, Dosdall DJ, MacLeod R, Ranjan R (2017 Nov). Characterization of Gadolinium Contrast Enhancement of Radiofrequency Ablation Lesions in Predicting Edema and Chronic Lesion Size.LID - e005599 [pii]LID - 10.1161/CIRCEP.117.005599 [doi]. Circ Arrhythm Electrophysiol, 10(11).
  10. Huang S, Wu L, Huang J, Panitchob N, Hu N, Ranjan R, Dosdall DJ (2017). Restitution characteristics of His bundle and working myocardium in isolated rabbit hearts. PLoS ONE, 12(10), e0186880.
  11. Polejaeva IA, Ranjan R, Davies CJ, Regouski M, Hall J, Olsen AL, Meng Q, Rutigliano HM, Dosdall DJ, Angel NA, Sachse FB, Seidel T, Thomas AJ, Stott R, Panter KE, Lee PM, Van Wettere AJ, Stevens JR, Wang Z, MacLeod RS, Marrouche NF, White KL (2016 Oct). Increased Susceptibility to Atrial Fibrillation Secondary to Atrial Fibrosis in Transgenic Goats Expressing Transforming Growth Factor-beta1. J Cardiovasc Electrophysiol, 27(10), 1220-1229.
  12. Angel N, Li L, MacLeod R, Marrouche N, Ranjan R, Dosdall DJ (). Diverse fibrosis architecture and premature stimulation facilitate initiation of reentrant activity following chronic atrial fibrillation. J Cardiovasc Electrophysiol, 26(12), 1352-60.
  13. Jin Q, Dosdall DJ, Li L, Rogers JM, Ideker RE, Huang J (2014 Nov 1). Verapamil reduces incidence of reentry during ventricular fibrillation in pigs. Am J Physiol Heart Circ Physiol, 307(9), H1361-9.
  14. Koopmann M, Hong K, Kholmovski EG, Huang EC, Hu N, Ying J, Levenson R, Vijayakumar S, Dosdall DJ, Ranjan R, Kim D (2014 Aug). Post-contrast myocardial T(1) and ECV disagree in a longitudinal canine study. NMR Biomed, 27(8), 988-95.
  15. Ranjan R, Dosdall D, Norlund L, Higuchi K, Silvernagel JM, Olsen AL, Davies CJ, MacLeod R, Marrouche NF (2014 Mar). Diagnostic imaging and pacemaker implantation in a domestic goat with persistent left cranial vena cava. J Vet Cardiol, 16(1), 45-50.
  16. Huang J, Dosdall DJ, Cheng KA, Li L, Rogers JM, Ideker RE (). The importance of Purkinje activation in long duration ventricular fibrillation. J Am Heart Assoc, 3(1), e000495.
  17. Bassett EC, Kholmovski EG, Wilson BD, DiBella EV, Dosdall DJ, Ranjan R, McGann CJ, Kim D (2014 Feb). Evaluation of highly accelerated real-time cardiac cine MRI in tachycardia. NMR Biomed, 27(2), 175-82.
  18. Angel N, Li L, Dosdall DJ (2014). His bundle activates faster than ventricular myocardium during prolonged ventricular fibrillation. PLoS ONE, 9(7), e101666.
  19. Li L, Zheng X, Dosdall DJ, Huang J, Pogwizd SM, Ideker RE (2013 Dec). Long-duration ventricular fibrillation exhibits 2 distinct organized states. Circ Arrhythm Electrophysiol, 6(6), 1192-9.
  20. Ranjan R, Dosdall D, Norlund L, Higuchi K, Silvernagel JM, Olsen AL, Davies CJ, MacLeod R, Marrouche NF (). Diagnostic imaging and pacemaker implantation in a domestic goat with persistent left cranial vena cava. J Vet Cardiol, 16(1), 45-50.
  21. Fitts M, Breton E, Kholmovski EG, Dosdall DJ, Vijayakumar S, Hong KP, Ranjan R, Marrouche NF, Axel L, Kim D (2013 Nov). Arrhythmia insensitive rapid cardiac T1 mapping pulse sequence. Magn Reson Med, 70(5), 1274-82.
  22. Dosdall DJ, Ranjan R, Higuchi K, Kholmovski E, Angel N, Li L, Macleod R, Norlund L, Olsen A, Davies CJ, Marrouche NF (2013 Sep 1). Chronic atrial fibrillation causes left ventricular dysfunction in dogs but not goats: experience with dogs, goats, and pigs. Am J Physiol Heart Circ Physiol, 305(5), H725-31.
  23. Li L, Zheng X, Dosdall DJ, Huang J, Ideker RE (2012 Nov-Dec). Different types of long-duration ventricular fibrillation: can they be identified by electrocardiography. J Electrocardiol, 45(6), 658-9.
  24. Osorio J, Dosdall DJ, Tabereaux PB, Robichaux RP Jr, Stephens S, Kerby JD, Stickney RE, Pogwizd S, Ideker RE (2012 Mar 1). Effect of chest compressions on ventricular activation. Am J Cardiol, 109(5), 670-4.
  25. Cheng KA, Dosdall DJ, Li L, Rogers JM, Ideker RE, Huang J (2012 Feb 15). Evolution of activation patterns during long-duration ventricular fibrillation in pigs. Am J Physiol Heart Circ Physiol, 302(4), H992-H1002.
  26. Robichaux RP, Dosdall DJ, Osorio J, Garner NW, Li L, Huang J, Ideker RE (). Periods of highly synchronous, non-reentrant endocardial activation cycles occur during long-duration ventricular fibrillation. J Cardiovasc Electrophysiol, 21(11), 1274-5.
  27. Li L, Jin Q, Dosdall DJ, Huang J, Pogwizd SM, Ideker RE (2010 Jun). Activation becomes highly organized during long-duration ventricular fibrillation in canine hearts. Am J Physiol Heart Circ Physiol, 298(6), H2046-53.
  28. Dosdall DJ, Osorio J, Robichaux RP, Huang J, Li L, Ideker RE (2010 Mar). Purkinje activation precedes myocardial activation following defibrillation after long-duration ventricular fibrillation. Heart Rhythm, 7(3), 405-12.
  29. Robertson PG, Huang J, Chen KA, Chen X, Dosdall DJ, Tabereaux PB, Smith WM, Ideker RE (2009 Mar). Increased cycle length during long-duration ventricular fibrillation is caused by decreased upstroke velocity as well as prolonged refractoriness. Heart Rhythm, 6(3), 378-84.
  30. Allred JD, Killingsworth CR, Allison JS, Dosdall DJ, Melnick SB, Smith WM, Ideker RE, Walcott GP (2008 Nov). Transmural recording of shock potential gradient fields, early postshock activations, and refibrillation episodes associated with external defibrillation of long-duration ventricular fibrillation in swine. Heart Rhythm, 5(11), 1599-606.
  31. Osorio J, Dosdall DJ, Robichaux RP Jr, Tabereaux PB, Ideker RE (2008 Oct). In a swine model, chest compressions cause ventricular capture and, by means of a long-short sequence, ventricular fibrillation. Circ Arrhythm Electrophysiol, 1(4), 282-9.
  32. Doppalapudi H, Jin Q, Dosdall DJ, Qin H, Walcott GP, Killingsworth CR, Smith WM, Ideker RE, Huang J (2008 Sep). Intracoronary infusion of catecholamines causes focal arrhythmias in pigs. J Cardiovasc Electrophysiol, 19(9), 963-70.
  33. Dosdall DJ, Tabereaux PB, Kim JJ, Walcott GP, Rogers JM, Killingsworth CR, Huang J, Robertson PG, Smith WM, Ideker RE (2008 Aug). Chemical ablation of the Purkinje system causes early termination and activation rate slowing of long-duration ventricular fibrillation in dogs. Am J Physiol Heart Circ Physiol, 295(2), H883-9.
  34. Dosdall DJ, Sweeney JD (2008 Aug 1). Extended charge banking model of dual path shocks for implantable cardioverter defibrillators. Biomed Eng Online, 7, 22.
  35. Allison JS, Qin H, Dosdall DJ, Huang J, Newton JC, Allred JD, Smith WM, Ideker RE (2007 Dec). The transmural activation sequence in porcine and canine left ventricle is markedly different during long-duration ventricular fibrillation. J Cardiovasc Electrophysiol, 18(12), 1306-12.
  36. Huang J, Cheng KA, Dosdall DJ, Smith WM, Ideker RE (2007 Oct). Role of maximum rate of depolarization in predicting action potential duration during ventricular fibrillation. Am J Physiol Heart Circ Physiol, 293(4), H2530-6.
  37. Tabereaux PB, Walcott GP, Rogers JM, Kim J, Dosdall DJ, Robertson PG, Killingsworth CR, Smith WM, Ideker RE (2007 Sep 4). Activation patterns of Purkinje fibers during long-duration ventricular fibrillation in an isolated canine heart model. Circulation, 116(10), 1113-9.
  38. Dosdall DJ, Cheng KA, Huang J, Allison JS, Allred JD, Smith WM, Ideker RE (2007 Jun). Transmural and endocardial Purkinje activation in pigs before local myocardial activation after defibrillation shocks. Heart Rhythm, 4(6), 758-65.
  39. Dosdall DJ, Rothe DE, Brandon TA, Sweeney JD (2004 Jul). Effect of rapid biphasic shock subpulse switching on ventricular defibrillation thresholds. J Cardiovasc Electrophysiol, 15(7), 802-8.

Review

  1. Pacchia CF, Dosdall DJ, Ranjan R, DiBella E (2014 Oct). Alterations in atrial perfusion during atrial fibrillation. [Review]. Exp Physiol, 99(10), 1267-72.
  2. Dosdall DJ, Fast VG, Ideker RE (). Mechanisms of defibrillation. [Review]. Annu Rev Biomed Eng, 15(12), 233-258.
  3. Tabereaux PB, Dosdall DJ, Ideker RE (2009 Mar). Mechanisms of VF maintenance: wandering wavelets, mother rotors, or foci. [Review]. Heart Rhythm, 6(3), 405-15.
  4. Ideker RE, Dosdall DJ (2007 Sep). Can the direct cardiac effects of the electric pulses generated by the TASER X26 cause immediate or delayed sudden cardiac arrest in normal adults? [Review]. Am J Forensic Med Pathol, 28(3), 195-201.
  5. Dosdall DJ, Ideker RE (2007 Mar). Intracardiac atrial defibrillation. [Review]. Heart Rhythm, 4(3 Suppl), S51-6.
  6. Dosdall DJ, Ideker RE (2005 Aug). New technologies of internal defibrillation. [Review]. J Interv Card Electrophysiol, 13 Suppl 1, 67-70.

Book Chapter

  1. Dosdall DJ, Ideker RE (). Mechanisms of Ventricular Tachycardia and Fibrillation. In Zipes DP, Jalife J (Eds.), Cardiac Electrophysiology: From Cell to Bedside (6th). Saunders.
  2. Dosdall DJ, Tabereau PB, Ideker RE (). Advances in Mapping of Ventricular Fibrillation and Defibrillation: Role of the Purkinje System. In Shenasa M, Hindricks G, Borggrefe M, Breithardt G, Josephson ME (Eds.), Cardiac Mapping (4th). Wiley-Blackwell.
  3. Dosdall D, Doppalapudi H, Ideker R (). Mechanical Modulation of Defibrillation Efficacy by Preload Changes. In Kohl P, Sachs F, Franz MR (Eds.), Cardiac Mechano-Electric Coupling and Arrhythmias (2nd Edition). Philadelphia, PA: Elsevier Publishing.
  4. Kay N, Dosdall D, Shepherd R (). Cardiac Electrical Stimulation. In Ellenbogen K, Kay N, Lau C, Wilkoff B (Eds.), Clinical Cardiac Pacing, Defibrillation, and Resynchronization Therapy (4th Edition). Elsevier Publishing.
  5. Dosdall D, Fast V, Ideker R (). Mechanisms of Defibrillation. In Zipes D, Jalife J (Eds.), Cardiac Electrophysiology: from Cell to Bedside (5th Edition). Elsevier.
  6. Tabereaux P, Dosdall D, Ideker R (). Mapping of Ventricular Tachycardia and Fibrillation: Role of the Purkinje System. In Shenasa M, Hindricks G, Borggrefe M, Breithardt G (Eds.), Cardiac Mapping (3rd Edition). Blackwell Publishing.
  7. Dosdall D, Ideker R (). Cardiac Arrhythmias. In Kroll M, Ho J (Eds.), Physiology and Pathology of Electronic Control Devices. Springer Publishing.
  8. Ideker R, Dosdall D (). Critical Points and the Upper Limit of Vulnerability for Defibrillation. In Efimov I, Kroll M, Tchou P (Eds.), Cardiac Bioelectric Therapy: Mechanisms and Practical Implications. Springer Publishing.
  9. Dosdall D, Huang J, Ideker R (). Mechanisms of Defibrillation. In Wang P, Hsia H, Al-Ahmad A, Zei P (Eds.), Ventricular Arrhythmias and Sudden Cardiac Death. Blackwell Publishing.

Conference Proceedings

  1. Dosdall D, Huang J, Ideker R (). Differential Electrograms Computed from Unipolar Endocardial Recordings Improve Purkinje Activation Identification. Computers in Cardiology, Park City, UT, 36, 225-228.
  2. Dosdall DJ, Huang J, Smith WM, Allred JD, Allison JS, Ideker RE (2006). Printed circuit board electrodes for transmural cardiac mapping. Conf Proc IEEE Eng Med Biol Soc, United States, 1, 3927-30.
  3. Dosdall DJ, Huang J, Smith WM, Allison JS, Allred JD, Ideker RE (2006). Guidelines for plunge needle recording for effective detection of purkinje activation. Conf Proc IEEE Eng Med Biol Soc, United States, 1, 3915-8.
  4. Dosdall DJ, Rothe DE, Sweeney JD (2004). Programmable arbitrary waveform generator for internal defibrillation research. Conf Proc IEEE Eng Med Biol Soc, United States, 6, 3971-4.
  5. Dosdall D, Sweeney J, Brandon T (). Rapid Current Switching with an Endovascular Electrode Configuration Significantly Decreases Implantable Defibrillator Thresholds. Proceedings of the 25th Annual International Conference of the IEEE EMBS, Cancun, Mexico, 179-183.

Editorial

  1. Dosdall DJ (2009 May). Mapping ventricular fibrillation: a simplified experimental model leads to a complicated result. Heart Rhythm, 6(5), 693-5.
  2. Ideker RE, Dosdall DJ, Robertson PG, Rogers JM (2007 Aug). Ventricular fibrillation: discordant alternans and discordant results. Heart Rhythm, 4(8), 1069-71.

Abstract

  1. Ghafoori E, Kwan E, Yamashita K, Kamali R, Roman O, Lichter JG, Hsu E, MacLeod R, Dosdall DJ, Ranjan R (). High Dominant Frequency Regions In Chronic Atrial Fibrillation Map To Areas With Fibrosis In The Atrial Wall [Abstract]. Heart Rhythm, 5(S1), PO04-119.
  2. Khan MS, Yamashita K, Sharma V, Ranjan R, Selzman CH, Dosdall DJ (). Atrial Conduction Property Differences Measured During Cardiac Surgery In Patients With And Without Post-operative Atrial Fibrillation [Abstract]. Heart Rhythm, 5(S1), PO05-120.
  3. Yamashita K, Ghafoori E, Silvernagel J, Dosdall DJ, MacLeod R, Ranjan R (). The Optimal Contact Force Setting to Minimize Edema Volume during Radiofrequency Ablation [Abstract]. Heart Rhythm, 5(S1), PO03-180.
  4. Yamashita K, Bradenberger L, Khan A, Ghafoori E, MacLeod R, Dosdall DJ, Ranjan R (). Cryo Ablation Lesion Maturation Assessment Using Serial MR Imaging [Abstract]. Heart Rhythm, 5(S1), PO02-179.
  5. Lange M, Panitchob N, Angel NA, Ranjan R, Dosdall DJ (). Simulation Framework for Evaluating Fibrosis Architecture on Atrial Tissue Conduction [Abstract]. Heart Rhythm, 5(S1), PO03-047.
  6. Yamashita K, MacLeod R, Dosdall DJ, Ranjan R (). Blanking Period after Atrial Fibrillation Ablation Based on Lesion Maturation Assessment [Abstract]. Heart Rhythm, 5(S1), PO01-040.
  7. Shah AR, Khan MS, Lange M, White A, Dosdall DJ (). Effect of selective His bundle pacing on ventricular fibrillation activation rates in rabbit hearts [Abstract]. FASEB Journal, 33(1_supplement), lb489.
  8. Yamashita K, Kwan E, MacLeod R, Dosdall DJ, Ranjan R (). Changes in Atrial Electrophysiological and Structual Remodelings and Their Relationship to Histology in a Chronic Atrial Fibrillation Canine Model [Abstract]. Circulation, 138(S1), 16309.
  9. Yamashita K, Kamali R, Kwan E, Han F, Dosdall DJ, MacLeod R, Ranjan R (). Optimizing Visitag Settings to Predict Scar After Left Atrial Ablation as Seen in MRI [Abstract]. Circulation, 138(S1), A16309.
  10. Kamali R, Lichter J, Ghafoori E, Regouski M, Polejaeva I, MacLeod R, Dosdall DJ, Ranjan R (). Contribution of atrial myofiber architecture to atrial fibrillation revealed by diffusion tensor imaging and validated by histology [Abstract]. Annual Scientific Sessions of the Heart Rhythm Society, Heart Rhythm, 15(5), PO06-052.
  11. Ranjan R, Lichter JG, Coulombe N, Ghafoori E, Kamali R, Kholmovski EG, Dosdall DJ (). Using real-time MRI to analyze freeze-zone formation of focal cryo-ablations [Abstract]. Annual Scientific Session of the Heart Rhythm Society, Heart Rhythm, 15(5), PO01-224.
  12. Yamashita K, Thomas S, Ashton J, Dosdall DJ, MacLeod R, Ranjan R (). The optimal contact force to minimize edema formation during radiofrequency ablation [Abstract]. Annual Scientific Sessions of the Heart Rhythm Society, Heart Rhythm, 15(5), B-PO01-180.
  13. Yamashita K, Ghafoori E, Coulombe N, Dosdall DJ, MacLeod R, Ranjan R (). Acute edema resulting from cryo ablation resolves in two weeks [Abstract]. Annual Scientific Sessions of the Heart Rhythm Society, Heart Rhythm, 15(5), B-PO01-053.
  14. Yamashita K, Ranjan R, Selzman C, Hu N, Dosdall DJ (). Meta Analysis of Risk Factors For Post-Operative Atrial Fibrillation [Abstract]. Annual Scientific Sessions of the American College of Cardiology, JACC, 71(11), A371.
  15. Gahfoori E, Karmali R, Lichter JG, Dosdall DJ, MacLeod R, Ranjan R (). High Frequency Driver Sites in Atrial Fibrillation have Greater Spectral Stability Compared to Low Frequency Sites. Heart Rhythm Scientific Sessions, May 10-13, 2017, Chicago, IL, USA [Abstract]. Heart Rhythm, 14(5S), S265.
  16. Li L, Huang J, Panitchob N, Ideker RE, Dosdall DJ (). Failed Defibrillation Shocks Change Activation Patterns Following Prolonged but Not Short Duration Ventricular Fibrillation [Abstract]. Circ, 134(A), 16022.
  17. Angel N, Dosdall DJ, MacLeod RM, Ranjan R (). High frequency driving sites anchor to fibrotic regions in chronic atrial fibrillation. Vancouver, Canada, Sept 11-14, 2016 [Abstract]. Computing in Cardiology.
  18. Huang S, Wu L, Huang J, Shihab S, Ranjan R, Dosdall DJ (). Restitution Characteristics of His bundle and working myocardium in isolated rabbit hearts. Aug 16-20, 2016. Orlando, FL [Abstract]. IEEE Engineering in Medicine and Biology Conference.
  19. Angel NA, Kholmovski E, Dosdall DJ, MacLeod RS, Marrouche N, Ranjan R (). High Frequency Driving Sites are Anchored by Fibrotic Regions in Chronic Atrial Fibrillation [Abstract]. American Heart Association Scientific Sessions, Circulation, 132, A16024.
  20. Angel NA, LI L, MacLeod RS, Marrouche N, Ranjan R, Dosdall DJ (). Obstructive Fibrosis Related to Transverse Conduction Slowing in Chronic Atrial Fibrillation [Abstract]. American Heart Association Scientific Sessions, Circulation, 132, A16685.
  21. Angel NA, Ranjan R, Li L, Marrouche NF, Dosdall DJ (). Diverse fibrosis architecture facilitates reentrant activity in chronic atrial fibrillation [Abstract]. Heart Rhythm, 12(5S), AB35-01.
  22. Angel NA, Kholmovski EG, Dosdall DJ, MacLeod RS, Marrouche NF, Ranjan R (). Regions of high dominant frequency in chronic atrial fibrillation anchor to areas of atrial fibrosis determined by T1 mapping MRI [Abstract]. Heart Rhythm, 12(5S), PO01-85.
  23. Dosdall DJ, Li L, Angel N, Ranjan R, Marrouche NF (). Atrial Fibrillation Inducibility Differs in the Left and Right Atria of Goats. Heart Rhythm Society 2014 Scientific Sessions [Abstract]. Heart Rhythm, 11(5S), PO03-166.
  24. Hong K, Koopmann M, Kholmovski EG, Huang EC, Hu N, Leverson R, Vijaykumar S, Dosdall DJ, Ranjan R, Kim D (). Cardiac ECV is More Robust than Post-Contrast Cardiac T1 for Evaluating Temporal Changes in Left Ventricular Fibrosis [Abstract]. ISMRM 2014 Conference.
  25. Hong K, Kholmovski EG, Dosdall DJ, McGann CJ, Ranjan R, Kim D (). Comparisons of Canine ECV Measurements by CMR at 3T: IR- vs. SR-based Cardiac T1 Mapping and Bolus Injection vs.Slow Infusion of Contrast Agent [Abstract]. ISMRM 2014 Conference.
  26. Koopmann M, Hong KP, Ranjan R, Hu N, Kholmovski E, Vijayakumar S, Higuchi K, Norlund LL, Dosdall DJ, Marrouche N, Kim D (). Cardiac T1 Mapping for Assessment of Biventricular Structural Remodeling in a Canine Model of Atrial Fibrillation [Abstract]. American Heart Association Scientific Sessions 2013.
  27. Kholmovski EG, Kim D, Vijayakumar S, Ranjan R, Dosdall DJ, Higuchi K, MacLeod R, Marrouche NF (). High-Resolution, Whole Heart T1 Mapping in a Chronic Atrial Fibrillation Model [Abstract]. American Heart Association Scientific Sessions 2013.
  28. Polejaeva IA, Ranjan R, Hall J, Rutigiano HM, Thomas AJ, Dosdall DJ, MacLeod R, Marrouche N, Wang Z, Olsen A, White KL, Davies CJ (). Cardiac Specific Overexpression of Transforming Growth Factor Beta1 (TGF-Beta1) Increases Susceptibility to Atrial Fibrillation in Transgenic Goats [Abstract]. American Heart Association Scientific Sessions 2013.
  29. DJ Dosdall, R Ranjan, K Higuchi, G Kaur, E Kholmovski, S Vijayakumar, A Olsen, C Davies, Rob MacLeod, NF Marrouche (). Left Atrial Dilation Occurs In The Acute Phase Of Disease Initiation In A Canine Model Of Chronic Atrial Fibrillation (Heart Rhythm Scientific Sessions) [Abstract]. Heart Rhythm, 10(5S), PO05-76.
  30. A George, PhD, O Abdullah, E Kholmovski, N Burgon, G Kaur, D Dosdall, R Ranjan, E Hsu, N Marrouche (). Diffusion Tensor Magnetic Resonance Imaging Correlates With Left Atrial Structural Remodeling In An Atrial Fibrillation Model [Abstract]. Heart Rhythm, 10(5S), PO01-102.
  31. K Hong, M Koopmann, R Ranjan, EC Huang, EG Kholmovski, S Vijayakumar, CJ McGann, DJ Dosdall, NF Marrouche, D Kim (). Quantitative MRI Assessment of LV Structural Remodeling and Fibrosis Formation in Canine Models of Chronic Atrial Fibrillation [Abstract]. ISMRM 21st Annual Meeting, 21(1), 4510.
  32. S Vijayakumar, R Ranjan, DJ Dosdall, K Hong, D Kim, NF Marrouche, EG Kholmovski (). Assessment of Lesion Characteristics Post RF Ablation Procedure in a Chronic Canine Model of Atrial Fibrillation [Abstract]. ISMRM 21st Conference Proceedings, 21(1), 4515.
  33. M Fitts, E Breton, EG Kholmovski, DJ Dosdall, S Vijayakumar, KP Hong, R Ranjan, NF Marrouche, L Axel, D Kim (). Arrhythmia Insensitive Rapid Cardiac T1 Mapping Pulse Sequence: In Vitro Study [Abstract]. ISMRM 21st Annual Meeting Proceedings, 21(1), 4569.
  34. Werys K, Vijayakumar S, Ranjan R, Dosdall D, Kim D, Marrouche NF, Kholmovski EG (). CINE-MRI to study the progress of disease in a chronic Atrial Fibrillation Goat Model [Abstract]. ISMRM 21st Annual Meeting, 21(1), 1393.
  35. Q Meng, J Hall, H Rutigliano, X Zhou, BR Sessions, R Stott, K Panter, CJ Davies, R Ranjan, D Dosdall, R MacLeod, N Marrouche3, KL White, Z Wang, IA Polejaeva (). Generation of Cloned Transgenic Goats with Cardiac Specific Overexpression of Transforming Growth Factor β1 [Abstract]. J Reproduction, Fertility, and Development, 25(1), 30.
  36. Hong KP, Kholmovski EG, Dosdall DJ, Huang EC, Vijayakumar S, Fitts M, McGann CJ, Ranjan R, Marrouche NF, Kim D (). Quantitative MRI Assessment of LV Structural Remodeling and Fibrosis Formation in Canine Models of Chronic Atrial Fibrillation [Abstract]. AHA Scientific Sessions 2012, Los Angeles, CA, Circulation, 126, A17528.
  37. IA Polejaeva, J Hall, Q Meng, X Zhou, BR Sessions, Panter, R Stott, HM Rutigliano, CJ Davies, Z Wang, R Ranjan, D Dosdall, R MacLeod, N Marrouche, KL White (). Development of a Transgenic Goat Model with Cardiac-Specific Overexpression of Transforming Growth Factor-β1 to Study the Relationship Between Atrial Fibrosis and Atrial Fibrillation. AHA Basic Cardiovascular Sciences 2012 Scientific Sessions [Abstract]. Circ Res, 111(S1), A251.
  38. D J Dosdall, R Ranjan, E Kholmovski, S Vijayakumar, A Olsen, I Polejaeva, J Huo, R Macleod, NMarrouche (). LGE-MRI detected structural remodeling in a 12-month canine model of chronic AF. European Society of Cardiology Congress 2012 25-29 Aug 2012 [Abstract]. Euro Heart J, 33(S1), 1048.
  39. Li L, Dosdall DJ, Huang J, Ideker RE (). Three Distinct Activation Patterns in Long-duration Ventricular Fibrillation in Canine Hearts Initiate from the Endocardium [Abstract]. Heart Rhythm, 9(5), PO05-111.
  40. Li L, Zheng X, Dosdall DJ, Huang J, Ideker RE (). Long duration ventricular fibrillation exhibits two distinct, organized endocardial activation patterns [Abstract]. Heart Rhythm, 8(5), PO5-127.
  41. Dosdall DJ, Huang J, Li L, Jennings JM, Ideker RE (). Classification of endocardial activation patterns does not predict transmural or epicardial activation patterns during prolonged ventricular fibrillation [Abstract]. Heart Rhythm, 8(5), PO1-76.
  42. Huang J, Dosdall DJ, Li L, Ideker RE (). Purkinje early after-depolarizations are present in long duration ventricular fibrillation [Abstract]. Circulation, 124, A11132.
  43. J Jennings, S Melnick, D Dosdall, N Garner, R Ideker, G Walcott (). A Comparison of Short Duration Ventricular Fibrillation and Long Duration Ventricular Fibrillation Defibrillation Thresholds (American Heart Association Resuscitation Science Symposium, Nov 13-14, 2010, Chicago, IL, USA) [Abstract]. Ciruclation, 122, A210.
  44. Dong H, Roussel T, Jackson D, Naber J, Koenig S, Keynton R, Dosdall D, Ideker R (). Characterization of thin-film microelectrode array and signal conditioning microchip for high spatial resolution surface laplacian measurement. (IEEE Sensors 2010, Waikoloa, HI, USA) [Abstract]. Sensors, 2010 IEEE, 2464-2467.
  45. J Huang, D Dosdall, L Li, R Ideker (). The FFT Estimates Epicardial Activation Rate in Pigs but not Dogs in Late Ventricular Fibrillation (Biomedical Engineering Society Annual Meeting, Oct 6-9, 2010, Austin, TX, USA) [Abstract]. On conference proceedings CD.
  46. H Dong, D Jackson, T Roussel, D Dosdall, R Ideker, J Naber, S Koenig, R Keynton (). Design and Characterization of a Signal Conditioning Microchip and Thin-Film Microelectrode Array for High Spatial Resolution Cardiac Mapping (6th World Congress on Biomechanics, Aug 1-6, 2010, Singapore) [Abstract].
  47. Dong H, Jackson D, Roussel T, Dosdall DJ, Ideker R, Naber J, Koenig S, Keynton R (). Design and characterization of a signal conditioning microchip and thin-film microelectrode array for high spatial resolution cardiac mapping [Abstract]. IFMBE Proceedings, 31(6), 1417-1420.
  48. D Dosdall, J Huang, L Li, N Garner, R Ideker (). Failed Defibrillation Shocks Alter Activation Patterns Following Long but not Short Duration Ventricular Fibrillation (Heart Rhythm Society Scientific Sessions, May 12-15,2010, Denver CO, USA) [Abstract]. Heart Rhythm, 7(5S), P05-75.
  49. D McLain, A Christopher, C Mize, D Dosdall, T Yamada, H Doppalapudi, V Plumb, H McElderry, G Kay (). Atrial Fibrillation Ablation on Therapeutic Warfarin: a Nomogram to Predict Heparin Dosing (Heart Rhythm Society Scientific Sessions, Best Poster Allied Professionals Award, May 12-15,2010, Denver CO, USA) [Abstract]. Heart Rhythm, 7(5S), PO1-02.
  50. J Jennings, L Teplitsky, J Hegrenes, D Dosdall, H McElderry (). Radiofrequency Catheter Tip Temperature is a Poor Predictor of Contact Force with Open-Irrigated Ablation (Heart Rhythm Society Scientific Sessions, May 12-15,2010, Denver CO, USA) [Abstract]. Heart Rhythm, 7(5S), PO5-42.
  51. Zheng X, Li L, Dosdall D, Ideker R (). Following Long Duration Ventricular Fibrillation, Flunarizine Greatly Reduces the Defibrillation Threshold and the Incidence of Refibrillation. American Heart Association Scientific Sessions, Orlando, FL [Abstract]. Circulation, 120, S1481.
  52. Dong H, Koenig SC, Dosdall DJ, Ideker RE (). Development of high-density surface microelectrode arrays for high spatial resolution cardiac mapping [Abstract]. Proceedings of the 5th international conference on microtechnology in medicine and biology.
  53. Dong H, Martin M, Koenig S, Sztaberek L, Dosdall D, Ideker R, Naber J, Keynton R (). Flexible High-Density Surface Microelectrode Arrays for High Spatial Resolution Cardiac Mapping. (Annual Meeting of the Biomedical Engineering Society, Pittsburgh, PA) [Abstract]. Published on CD given to conference attendees.
  54. Allred J, Robichaux R, Dosdall D, Osorio J, Yamada T, Kay G, McElderry H (). Air in the Pericardium Significantly Increases the DFT: A Potential Complication to Epicardial Ablation (Heart Rhythm Society Scientific Session, May 13-16, 2009, Boston, MA) [Abstract]. Heart Rhythm, 6(5S), S119.
  55. Huang J, Cheng K, Dosdall D, Ideker R (). Activation Pattern Differences Between Pigs and Dogs During Long Duration Ventricular Fibrillation may be due to Purkinje Distribution Differences (Heart Rhythm Society Scientific Session, May 13-16, 2009, Boston, MA) [Abstract]. Heart Rhythm, 6(5S), S289.
  56. Osorio J, Dosdall D, Tabereaux P, Robichaux R, Stephens S, Kerby J, Ideker R (). Mechanoelectrical Coupling During Cardiopulmonary Resuscitation: Chest Compressions can Cause Ventricular Activation in Humans (Heart Rhythm Society Scientific Session, Young Investigator Award Winner, Clinical Research, May 13-16, 2009, Boston, MA) [Abstract]. Heart Rhythm, 6(5S), S465.
  57. Huang J, Cheng K, Dosdall D, Li L, Ideker R (). The Purkinje System Drives Regions of High Activation Frequency During Long Duration Ventricular Fibrillation in Pigs and Dogs (Heart Rhythm Society Scientific Session, May 13-16, 2009, Boston, MA) [Abstract]. Heart Rhythm, 6(5S), S429.
  58. Jin Q, Rogers J, Dosdall D, Ideker R, Huang J (). New Insigts into Effects of Verapamil on Reentrant Circuits During Ventricular Fibrillation in in vivo Pigs (American College of Cardiology Scientific Sessions Mar 29-31, 2009, Orlando, FL) [Abstract]. JACC, 53:10(SA), 1029-50:A122.
  59. Dosdall D, Osorio J, Robichaux R, Huang J, Ideker R (). Purkinje Activation Precedes Myocardial Activation Following Near Threshold Shocks Following Long Duration Ventricular Fibrillation (American College of Cardiology Scientific Sessions Mar 29-31, 2009, Orlando, FL) [Abstract]. JACC, 53:10(SA), 1011-41:A102.
  60. Robichaux R, Teplitsky L, Dosdall D, Osorio J, Blackstone M, Carter H, McElderry HT, Killingsworth C (). Temperature Feedback with Open Irrigated Ablation: A Comparison Between Insulated and Non-insulated Fluid Lumen Catheters (American Heart Association Scientific Sessions, Nov 8-12, 2008, New Orleans, LA) [Abstract]. Circulation, 118, S_830.
  61. Osorio J, Walcott G, Robichaux R, Dosdall D, Garner N, Stephens S, Brown T, Kerby J, Ideker R (). Chest Compressions Can Cause Atrial and Ventricular Capture, During Both Sinus Rhythm and After Ventricular Fibrillation (American Heart Association Resuscitation Science Symposium, Young Investigator Award Recipient, Nov 8-12, 2008, New Orleans, LA) [Abstract]. Circulation, 118, S1449.
  62. Robichaux R, Teplitsky L, Dosdall D, Osorio J, Blackstone M, Carter H, McElderry HT, Killingsworth C (). Comparative Abation Analysis in a Swine Intracardiac Model: Lesion Effectiveness of Ablation Within the Therapeutic Range of 2 Irrigated, One Non-irrigated and one Cryoablation Catheter (American Heart Association Scientific Sessions, Nov 8-12, 2008, New Orleans, LA) [Abstract]. Circulation, 118, S_979-S_980.
  63. Robichaux R, Dosdall D, Osorio J, Garner N, Li L, Ideker R (). Periods of Highly Organized Non-Reentrant Endocardial Activation Can Occur During Long Duration Ventricular Fibrillation (American Heart Association Resuscitation Science Symposium, Nov 8-12, 2008, New Orleans, LA) [Abstract]. Circulation, 118, S_1476.
  64. Dosdall D, Osorio J, Robichaux R, Huang J, Ideker R (). Chest Compressions after Defibrillation Cause Ventricular Electrical Activation in Dogs. Annual Meeting of the Biomedical Engineering Society, St. Louis, MO [Abstract]. Published on CD given to conference attendees.
  65. Jin Q, Dosdall D, Huang J, Ideker R (). Alteration and Prediction of Reentry Incidence During Ventricular Fibrillation (CardioStim 2008, 16th World Congress in Cardiac Electrophysiology and Cardiac Techniques, Nice, France, June 18-21, 2008) [Abstract]. Europace, 10(S), 43L_6.
  66. Jin Q, Dosdall D, Ideker R, Huang J (). Synergistic Effects of Procainamide and Sotalol on Ventricular Fibrillation (CardioStim 16th World Congress in Cardiac Electrophysiology and Cardiac Techniques, Nice, France, June 18-21, 2008) [Abstract]. Europace, 10(S), 58P_54.
  67. Robichaux Jr R, Teplisky L, Dosdall D, Osorio J, Rollins D, Ideker R, Killingsworth C (). Ablation Catheter Bench Tests Determine Effective In Vivo Parameters (CardioStim 16th World Congress in Cardiac Electrophysiology and Cardiac Techniques, Nice, France, June 18-21, 2008) [Abstract]. Europace, 10(S), 178P_15.
  68. Dosdall D, Osorio J, Robichaux R, Huang J, Ideker R (). Duration of Ventricular Fibrillation Affects First Post-Shock Activation Time and Defibrillation Threshold. FASEB Experimental Biology Conference, San Diego, CA [Abstract]. FASEB Journal, 22, 971.4.
  69. Tabereaux P, Dosdall D, Ideker R, Huang J (). Transmural Propagation of Wavefronts During Long Duration Ventricular Fibrillation (American College of Cardiology Scientific Sessions Mar 29-Apr 1, 2008, Chicago, IL) [Abstract]. JACC, 51:10(S1), 1001-103:A3.
  70. Dosdall D, Osorio J, Walcott G, Ideker R (). Defibrillation Threshold Decreases with Repeated Episodes of Long Duration Fibrillation (American College of Cardiology Scientific Sessions Mar 29-Apr 1, 2008, Chicago, IL) [Abstract]. JACC, 51:10(S1), 1031-73:A232.
  71. Dosdall D, Tabereaux P, Kim J, Walcott G, Rogers J, Killingsworth C, Huang J, Smith W, Ideker R (). Chemical Ablation of Subendocardium and Purkinje Fibers in Dogs Causes Early Termination and Activation Rate Slowing of Long Duration Ventricular Fibrillation (American College of Cardiology Scientific Sessions Mar 29-Apr 1, 2008, Chicago, IL) [Abstract]. JACC, 51:10(S1), 1001-108:A4.
  72. Allred J, Killingsworth C, Allison S, Dosdall D, Melnick S, Smith W, Ideker R, Walcott G (). Potential Gradient Fields and Earliest Post Shock Activity Following External Defibrillation of Long Duration Ventricular Fibrillation in Swine (American Heart Association Resuscitation Science Symposium, Orlando, FL, USA. Nov 3-4, 2007) [Abstract]. Circulation, 116, II_934.
  73. Allred J, Killingsworth C, Allison S, Dosdall D, Melnick S, Smith W, Ideker R, Walcott G (). Spontaneous Refibrillation Following External Defibrillation of Long Duration Ventricular Fibrillation in Swine (American Heart Association Resuscitation Science Symposium, Orlando, FL, USA. Nov 3-4, 2007) [Abstract]. Circulation, 116, II_944.
  74. Huang J, Dosdall D, Ideker R (). Transmural Incidence of Purkinje Activations during Ventricular Fibrillation (American Heart Association Scientific Sessions 2007, Orlando, FL, USA. Nov 3-4, 2007) [Abstract]. Circulation, 116, II_280.
  75. Huang J, Killingsworth C, Dosdall D, Ideker R (). The Effect of Oral Amiodarone on Long Duration Ventricular Fibrillation (American Heart Association Resuscitation Science Symposium, Orlando, FL, USA. Nov 3-4, 2007) [Abstract]. Circulation, 116, II.
  76. Huang J, Cheng K, Dosdall D, Rogers J, Ideker R (). Restitution Properties Immediately Preceding Conduction Block During Ventricular Fibrillation (The American College of Cardiology, New Orleans, LA, USA. March 24-27, 2007) [Abstract]. JACC, 49(9S,903-234), 14A.
  77. Dosdall D, Cheng K, Huang J, Ideker R (). Purkinje Activation Preceding Muscle Activation After Defibrillation Shocks (Oral Presentation at CardioStim 2006, 15th World Congress in Cardiac Electrophysiology and Cardiac Techniques, Nice, France, June 14-17, 2006) [Abstract]. Europace, 8, S261/6.
  78. Dosdall D, Brandon T, Sweeney J (). Interleaved Pulse Duration Effects On Biphasic Ventricular Defibrillation (25th Annual NASPE – Heart Rhythm Society Scientific Session, San Francisco, CA, May 2004) [Abstract]. Heart Rhythm, 1, S115-116.