Ravi Ranjan

Summary

Affiliation: University of Utah
Country: USA

Publications

  1. ncbi request reprint Magnetic resonance imaging in clinical cardiac electrophysiology
    Ravi Ranjan
    Department of Bioengineering, University of Utah, Salt Lake City, UT 84132, USA
    Crit Rev Biomed Eng 40:409-26. 2012
  2. pmc Diagnostic imaging and pacemaker implantation in a domestic goat with persistent left cranial vena cava
    Ravi Ranjan
    University of Utah, Comprehensive Arrhythmia Research and Management Center, 30 North 1900 East, Salt Lake City, UT 84132, USA Electronic address
    J Vet Cardiol 16:45-50. 2014
  3. pmc Gaps in the ablation line as a potential cause of recovery from electrical isolation and their visualization using MRI
    Ravi Ranjan
    Departments of Medicine Cardiology, University of Utah, Salt Lake City, 84132, USA
    Circ Arrhythm Electrophysiol 4:279-86. 2011
  4. pmc Atrial fibrillation ablation outcome is predicted by left atrial remodeling on MRI
    Christopher McGann
    Comprehensive Arrhythmia Research and Management Center, Division of Cardiology, Department of Surgery, Department of Radiology, Scientific Computing and Imaging Institute, Bioengineering, Department of Pathology, and Division of Epidemiology, University of Utah Health Sciences Center, Salt Lake City
    Circ Arrhythm Electrophysiol 7:23-30. 2014
  5. pmc Chronic atrial fibrillation causes left ventricular dysfunction in dogs but not goats: experience with dogs, goats, and pigs
    Derek J Dosdall
    Comprehensive Arrhythmia Research and Management Center, University of Utah, Salt Lake City, Utah and
    Am J Physiol Heart Circ Physiol 305:H725-31. 2013
  6. pmc The effect of fat pad modification during ablation of atrial fibrillation: late gadolinium enhancement MRI analysis
    Koji Higuchi
    Comprehensive Arrhythmia and Research Management CARMA Center, University of Utah School of Medicine, Salt Lake City, Utah, USA
    Pacing Clin Electrophysiol 36:467-76. 2013
  7. doi request reprint Arrhythmia insensitive rapid cardiac T1 mapping pulse sequence
    Michelle Fitts
    Department of Bioengineering, University of Utah, Salt Lake City, Utah, USA CARMA Center, University of Utah, Salt Lake City, Utah, USA
    Magn Reson Med 70:1274-82. 2013
  8. doi request reprint Improvement in estimated glomerular filtration rate in patients with chronic kidney disease undergoing catheter ablation for atrial fibrillation
    Leenhapong Navaravong
    Comprehensive Arrhythmia Research and Management CARMA Center, University of Utah Division of Cardiovascular Medicine, Salt Lake City, Utah, USA
    J Cardiovasc Electrophysiol 26:21-7. 2015
  9. doi request reprint Wideband late gadolinium enhanced magnetic resonance imaging for imaging myocardial scar without image artefacts induced by implantable cardioverter-defibrillator: a feasibility study at 3 T
    Ravi Ranjan
    CARMA Center, Division of Cardiology, Internal Medicine, University of Utah, 30 North 1900 East, Rm 4A100, Salt Lake City, UT 84132, USA
    Europace 17:483-8. 2015
  10. pmc Identification and acute targeting of gaps in atrial ablation lesion sets using a real-time magnetic resonance imaging system
    Ravi Ranjan
    Division of Cardiology, Comprehensive Arrhythmia Research and Management Center, University of Utah, Salt Lake City, UT 84132, USA
    Circ Arrhythm Electrophysiol 5:1130-5. 2012

Collaborators

Detail Information

Publications15

  1. ncbi request reprint Magnetic resonance imaging in clinical cardiac electrophysiology
    Ravi Ranjan
    Department of Bioengineering, University of Utah, Salt Lake City, UT 84132, USA
    Crit Rev Biomed Eng 40:409-26. 2012
    ..In addition MRI can also be used to visualize radiofrequency ablation lesions, potentially leading to significant improvement in procedural outcomes...
  2. pmc Diagnostic imaging and pacemaker implantation in a domestic goat with persistent left cranial vena cava
    Ravi Ranjan
    University of Utah, Comprehensive Arrhythmia Research and Management Center, 30 North 1900 East, Salt Lake City, UT 84132, USA Electronic address
    J Vet Cardiol 16:45-50. 2014
    ....
  3. pmc Gaps in the ablation line as a potential cause of recovery from electrical isolation and their visualization using MRI
    Ravi Ranjan
    Departments of Medicine Cardiology, University of Utah, Salt Lake City, 84132, USA
    Circ Arrhythm Electrophysiol 4:279-86. 2011
    ..In this study, we looked at the effect of tissue conductivity and propagation of electric wave fronts across ablation lines with gaps, using both simulations and an animal model...
  4. pmc Atrial fibrillation ablation outcome is predicted by left atrial remodeling on MRI
    Christopher McGann
    Comprehensive Arrhythmia Research and Management Center, Division of Cardiology, Department of Surgery, Department of Radiology, Scientific Computing and Imaging Institute, Bioengineering, Department of Pathology, and Division of Epidemiology, University of Utah Health Sciences Center, Salt Lake City
    Circ Arrhythm Electrophysiol 7:23-30. 2014
    ..We hypothesized that late gadolinium enhancement MRI (LGE-MRI) can identify left atrial (LA) wall structural remodeling (SRM) and stratify patients who are likely or not to benefit from ablation therapy...
  5. pmc Chronic atrial fibrillation causes left ventricular dysfunction in dogs but not goats: experience with dogs, goats, and pigs
    Derek J Dosdall
    Comprehensive Arrhythmia Research and Management Center, University of Utah, Salt Lake City, Utah and
    Am J Physiol Heart Circ Physiol 305:H725-31. 2013
    ..Both the dog and goat models are representative of segments of the patient population with chronic AF. ..
  6. pmc The effect of fat pad modification during ablation of atrial fibrillation: late gadolinium enhancement MRI analysis
    Koji Higuchi
    Comprehensive Arrhythmia and Research Management CARMA Center, University of Utah School of Medicine, Salt Lake City, Utah, USA
    Pacing Clin Electrophysiol 36:467-76. 2013
    ..Magnetic resonance imaging (MRI) can visualize locations of both the ablation scar on the left atrium (LA) after atrial fibrillation (AF) ablation and epicardial fat pads (FPs) containing ganglionated plexi (GP)...
  7. doi request reprint Arrhythmia insensitive rapid cardiac T1 mapping pulse sequence
    Michelle Fitts
    Department of Bioengineering, University of Utah, Salt Lake City, Utah, USA CARMA Center, University of Utah, Salt Lake City, Utah, USA
    Magn Reson Med 70:1274-82. 2013
    ..To develop an arrhythmia-insensitive rapid (AIR) cardiac T1 mapping pulse sequence for quantification of diffuse fibrosis...
  8. doi request reprint Improvement in estimated glomerular filtration rate in patients with chronic kidney disease undergoing catheter ablation for atrial fibrillation
    Leenhapong Navaravong
    Comprehensive Arrhythmia Research and Management CARMA Center, University of Utah Division of Cardiovascular Medicine, Salt Lake City, Utah, USA
    J Cardiovasc Electrophysiol 26:21-7. 2015
    ..Chronic kidney disease (CKD) and atrial fibrillation (AF) often coexist. We studied the association of CKD with atrial fibrosis and the effect of AF ablation on kidney function...
  9. doi request reprint Wideband late gadolinium enhanced magnetic resonance imaging for imaging myocardial scar without image artefacts induced by implantable cardioverter-defibrillator: a feasibility study at 3 T
    Ravi Ranjan
    CARMA Center, Division of Cardiology, Internal Medicine, University of Utah, 30 North 1900 East, Rm 4A100, Salt Lake City, UT 84132, USA
    Europace 17:483-8. 2015
    ..5T. The purpose of this study was to widen the availability of wideband LGE MRI to 3T, since it has the potential to achieve higher spatial resolution than 1.5T...
  10. pmc Identification and acute targeting of gaps in atrial ablation lesion sets using a real-time magnetic resonance imaging system
    Ravi Ranjan
    Division of Cardiology, Comprehensive Arrhythmia Research and Management Center, University of Utah, Salt Lake City, UT 84132, USA
    Circ Arrhythm Electrophysiol 5:1130-5. 2012
    ..In this study, we acutely identify and target gaps using a real-time magnetic resonance imaging (RT-MRI) system, leading to a complete and transmural ablation in the atrium...
  11. pmc Comparison of left atrial area marked ablated in electroanatomical maps with scar in MRI
    Bhrigu R Parmar
    Division of Cardiology, CARMA Center, University of Utah, Salt Lake City, Utah, USA
    J Cardiovasc Electrophysiol 25:457-63. 2014
    ..We hypothesized that, in atrial fibrillation (AF) ablation, EAM overestimates scar formation in the left atrium (LA) when compared to the scar seen on late-gadolinium enhancement magnetic resonance imaging (LGE-MRI)...
  12. pmc Sensitivity and specificity of substrate mapping: an in silico framework for the evaluation of electroanatomical substrate mapping strategies
    Joshua J E Blauer
    CARMA Center, University of Utah, Salt Lake City, Utah, USA Department of Bioengineering, University of Utah, Salt Lake City, Utah, USA
    J Cardiovasc Electrophysiol 25:774-80. 2014
    ..The aim of this study was to characterize the impact of catheter orientation on the ability of bipolar amplitudes to accurately discriminate between healthy and diseased tissues...
  13. doi request reprint Atrial fibrosis quantified using late gadolinium enhancement MRI is associated with sinus node dysfunction requiring pacemaker implant
    Nazem Akoum
    Comprehensive Arrhythmia Research and Management CARMA Center, University of Utah, Salt Lake City, Utah, USA
    J Cardiovasc Electrophysiol 23:44-50. 2012
    ..The underlying process is thought to be because of atrial fibrosis. We assessed the value of atrial fibrosis, quantified using late gadolinium enhanced-MRI (LGE-MRI), in predicting significant SND requiring pacemaker implant...
  14. doi request reprint Evaluation of highly accelerated real-time cardiac cine MRI in tachycardia
    Elwin C Bassett
    Department of Physics, University of Utah, Salt Lake City, UT, USA UCAIR, Department of Radiology, University of Utah, Salt Lake City, UT, USA
    NMR Biomed 27:175-82. 2014
    ..7%). Eight-fold-accelerated real-time cine MRI with CS yields acceptable diagnostic quality and relatively accurate LVEF measurements in the challenging setting of tachycardia...
  15. doi request reprint Alterations in atrial perfusion during atrial fibrillation
    Christina F Pacchia
    Comprehensive Arrhythmia and Research Management Center, Division of Cardiology, Department of Radiology, University of Utah Health Sciences Center, Salt Lake City, UT, USA
    Exp Physiol 99:1267-72. 2014
    ..Finally, this article highlights the need for longitudinal studies of AF that would elucidate the changes in LA perfusion resulting from chronic AF and lead to advancements in effective treatments to prevent progression of this disease. ..