Rene M Botnar

Summary

Affiliation: Harvard University
Country: USA

Publications

  1. ncbi Improved coronary artery definition with T2-weighted, free-breathing, three-dimensional coronary MRA
    R M Botnar
    Department of Medicine, Cardiovascular Division, Department of Radiology, Beth Israel Deaconess Medical Center and Harvard Medical School, Boston, MA, USA
    Circulation 99:3139-48. 1999
  2. ncbi Initial experiences with in vivo right coronary artery human MR vessel wall imaging at 3 tesla
    Rene M Botnar
    Department of Medicine, Cardiovascular Division, Beth Israel Deaconess Medical Center, Harvard Medical School, 330 Brookline Ave, Boston, MA 02215, USA
    J Cardiovasc Magn Reson 5:589-94. 2003
  3. ncbi Initial experiences with in vivo intravascular coronary vessel wall imaging
    Rene M Botnar
    Department of Medicine, Cardiovascular Division, Beth Israel Deaconess Medical Center and Harvard Medical School, Boston, Massachusetts 02115, USA
    J Magn Reson Imaging 17:615-9. 2003
  4. ncbi Magnetic resonance coronary lumen and vessel wall imaging
    R M Botnar
    Department of Medicine, Cardiovascular Division, Cardiac MR Center, 330 Brookline Ave, Boston, MA 02215, USA
    Rays 26:291-303. 2001
  5. ncbi 3D coronary vessel wall imaging utilizing a local inversion technique with spiral image acquisition
    R M Botnar
    Department of Medicine, Cardiovascular Division, Beth Israel Deaconess Medical Center and Harvard Medical School, Boston, Massachusetts 02215, USA
    Magn Reson Med 46:848-54. 2001
  6. ncbi A fast 3D approach for coronary MRA
    R M Botnar
    Department of Medicine, Cardiovascular Division, Beth Israel Deaconess Medical Center and Harvard Medical School, Boston, Massachusetts 02215, USA
    J Magn Reson Imaging 10:821-5. 1999
  7. ncbi Assessment of prosthetic aortic valve performance by magnetic resonance velocity imaging
    R Botnar
    Institute of Biomedical Engineering, University of Zurich and Swiss Federal Institute of Technology
    MAGMA 10:18-26. 2000
  8. ncbi Free-breathing 3D coronary MRA: the impact of "isotropic" image resolution
    R M Botnar
    Cardiovascular Division, Department of Medicine, Beth Israel Deaconess Medical Center and Harvard Medical School, Boston, MA 02215, USA
    J Magn Reson Imaging 11:389-93. 2000
  9. ncbi Inversion recovery radial MRI with interleaved projection sets
    Dana C Peters
    Department of Medicine, Cardiovascular Division, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Massachusetts 02215, USA
    Magn Reson Med 55:1150-6. 2006
  10. ncbi Renal arteries: navigator-gated balanced fast field-echo projection MR angiography with aortic spin labeling: initial experience
    Elmar Spuentrup
    Department of Medicine, Cardiovascular Division, Beth Israel Deaconess Medical Center and Harvard Medical School, Boston, Mass, USA
    Radiology 225:589-96. 2002

Detail Information

Publications29

  1. ncbi Improved coronary artery definition with T2-weighted, free-breathing, three-dimensional coronary MRA
    R M Botnar
    Department of Medicine, Cardiovascular Division, Department of Radiology, Beth Israel Deaconess Medical Center and Harvard Medical School, Boston, MA, USA
    Circulation 99:3139-48. 1999
    ..To address these problems, we examined the effect of a T2 preparation prepulse (T2prep) for myocardial suppression and a shortened acquisition window on coronary definition...
  2. ncbi Initial experiences with in vivo right coronary artery human MR vessel wall imaging at 3 tesla
    Rene M Botnar
    Department of Medicine, Cardiovascular Division, Beth Israel Deaconess Medical Center, Harvard Medical School, 330 Brookline Ave, Boston, MA 02215, USA
    J Cardiovasc Magn Reson 5:589-94. 2003
    ..With the broader availability of more SNR efficient fast spin echo and spiral techniques, further improvements can be expected...
  3. ncbi Initial experiences with in vivo intravascular coronary vessel wall imaging
    Rene M Botnar
    Department of Medicine, Cardiovascular Division, Beth Israel Deaconess Medical Center and Harvard Medical School, Boston, Massachusetts 02115, USA
    J Magn Reson Imaging 17:615-9. 2003
    ..To evaluate potential use of a loopless internal receiver coil for in vivo coronary artery vessel wall imaging in five domestic swine...
  4. ncbi Magnetic resonance coronary lumen and vessel wall imaging
    R M Botnar
    Department of Medicine, Cardiovascular Division, Cardiac MR Center, 330 Brookline Ave, Boston, MA 02215, USA
    Rays 26:291-303. 2001
    ..One common goal is to create a noninvasive test which might allow for screening for major proximal and mid coronary artery disease. These novel approaches will represent a major step forward in diagnostic cardiology...
  5. ncbi 3D coronary vessel wall imaging utilizing a local inversion technique with spiral image acquisition
    R M Botnar
    Department of Medicine, Cardiovascular Division, Beth Israel Deaconess Medical Center and Harvard Medical School, Boston, Massachusetts 02215, USA
    Magn Reson Med 46:848-54. 2001
    ..The coronary vessel wall could be visualized within the entire imaging volume...
  6. ncbi A fast 3D approach for coronary MRA
    R M Botnar
    Department of Medicine, Cardiovascular Division, Beth Israel Deaconess Medical Center and Harvard Medical School, Boston, Massachusetts 02215, USA
    J Magn Reson Imaging 10:821-5. 1999
    ..The robust image quality and the short average scanning time suggest that this approach may be useful for screening the major coronary arteries or identification of anomalous coronary arteries. J. Magn. Reson. Imaging 1999;10:821-825...
  7. ncbi Assessment of prosthetic aortic valve performance by magnetic resonance velocity imaging
    R Botnar
    Institute of Biomedical Engineering, University of Zurich and Swiss Federal Institute of Technology
    MAGMA 10:18-26. 2000
    ..Magnetic resonance (MRI) velocity mapping was used to evaluate non-invasively the flow profiles of the ascending aorta in normal volunteers and in patients with an aortic (mechanical) valve prosthesis...
  8. ncbi Free-breathing 3D coronary MRA: the impact of "isotropic" image resolution
    R M Botnar
    Cardiovascular Division, Department of Medicine, Beth Israel Deaconess Medical Center and Harvard Medical School, Boston, MA 02215, USA
    J Magn Reson Imaging 11:389-93. 2000
    ..Comparative studies with conventional x-ray angiography are needed to investigate the clinical utility of the isotropic strategy...
  9. ncbi Inversion recovery radial MRI with interleaved projection sets
    Dana C Peters
    Department of Medicine, Cardiovascular Division, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Massachusetts 02215, USA
    Magn Reson Med 55:1150-6. 2006
    ..These methods enable a radial trajectory to be employed in conjunction with preparation pulses for viability imaging...
  10. ncbi Renal arteries: navigator-gated balanced fast field-echo projection MR angiography with aortic spin labeling: initial experience
    Elmar Spuentrup
    Department of Medicine, Cardiovascular Division, Beth Israel Deaconess Medical Center and Harvard Medical School, Boston, Mass, USA
    Radiology 225:589-96. 2002
    ..This technique allows high-spatial-resolution and high-contrast renal MR angiography and visualization of renal artery stenosis without exogenous contrast agent or breath hold. Initial promising results warrant larger clinical studies...
  11. ncbi Preliminary report on in vivo coronary MRA at 3 Tesla in humans
    Matthias Stuber
    Department of Medicine Cardiovascular Division, Beth Israel Deaconess Medical Center and Harvard Medical School, Boston, Massachusetts 02215, USA
    Magn Reson Med 48:425-9. 2002
    ..In the present study we investigated the feasibility of human coronary MRA at 3.0 T in vivo. The first results obtained in nine healthy adult subjects are presented...
  12. ncbi The impact of spatial resolution and respiratory motion on MR imaging of atherosclerotic plaque
    Michael Schar
    Department of Medicine, Cardiovascular Division, Beth Israel Deaconess Medical Center and Harvard Medical School, Boston, Massachusetts 02215, USA
    J Magn Reson Imaging 17:538-44. 2003
    ..To examine the impact of spatial resolution and respiratory motion on the ability to accurately measure atherosclerotic plaque burden and to visually identify atherosclerotic plaque composition...
  13. ncbi Coronary MR angiography: comparison of quantitative and qualitative data from four techniques
    David Maintz
    Department of Medicine, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, USA
    AJR Am J Roentgenol 182:515-21. 2004
    ..Accuracy for detection of hemodynamically significant disease (> 50%) was assessed in comparison with radiographic coronary angiography...
  14. ncbi In vivo magnetic resonance imaging of coronary thrombosis using a fibrin-binding molecular magnetic resonance contrast agent
    Rene M Botnar
    Department of Medicine, Cardiovascular Division, Beth Israel Deaconess Medical Center and Harvard Medical School, Boston, Mass 02215, USA
    Circulation 110:1463-6. 2004
    ..We tested the feasibility of this approach using a gadolinium (Gd)-based fibrin-binding contrast agent, EP-2104R (EPIX Medical Inc), in a swine model of coronary thrombus and in-stent thrombosis...
  15. ncbi Inherently self-calibrating non-Cartesian parallel imaging
    Ernest N Yeh
    Department of Radiology, Beth Israel Deaconess Medical Center and Harvard Medical School, Boston, Massachusetts 02215, USA
    Magn Reson Med 54:1-8. 2005
    ..This work demonstrates the feasibility of self-calibrated spiral and radial parallel imaging using a previously described iterative non-Cartesian sensitivity encoding algorithm...
  16. ncbi Correction for heart rate variability improves coronary magnetic resonance angiography
    Tim Leiner
    Cardiovascular Division, Department of Medicine, Beth Israel Deaconess Medical Center, Boston, Massachusetts, USA
    J Magn Reson Imaging 22:577-82. 2005
    ..To address degradation of coronary MR angiography (MRA) image quality due to heart rate variability (HRV)-associated variations in coronary artery position and motion...
  17. ncbi Selective three-dimensional visualization of the coronary arterial lumen using arterial spin tagging
    Matthias Stuber
    Cardiovascular Division, Department of Medicine, Beth Israel Deaconess Medical Center and Harvard Medical School, Boston, Massachusetts 02215, USA
    Magn Reson Med 47:322-9. 2002
    ..This technique allows for selective 3D visualization of the coronary lumen blood-pool, while signal from the surrounding structures is suppressed...
  18. ncbi Navigator-gated free-breathing three-dimensional balanced fast field echo (TrueFISP) coronary magnetic resonance angiography
    Elmar Spuentrup
    Department of Medicine Cardiovascular Division, Beth Israel Deaconess Medical Center and Harvard Medical School, Boston, Massachusetts, USA
    Invest Radiol 37:637-42. 2002
    ..It is hypothesized that Balanced-FFE may be valuable for contrast enhancement in 3D free-breathing coronary MRA...
  19. ncbi Real-time motion correction in navigator-gated free-breathing double-oblique submillimeter 3D right coronary artery magnetic resonance angiography
    Elmar Spuentrup
    Department of Medicine Cardiovascular Division, Beth Israel Deaconess Medical Center and Harvard Medical School, Boston, Massachusetts, USA
    Invest Radiol 37:632-6. 2002
    ....
  20. ncbi Characterizing radial undersampling artifacts for cardiac applications
    Dana C Peters
    Beth Israel Deaconess Medical Center and Harvard Medical School, Department of Medicine, Cardiovascular Division, Boston, Massachusetts 02215, USA
    Magn Reson Med 55:396-403. 2006
    ..A study of coronary MRI at progressively fewer projections (at constant scan time) showed that right coronary MRI images were acceptable if total artifact was <6.5% of image content (N(p) > 120, R = 2.1)...
  21. ncbi Delayed-enhancement cardiovascular magnetic resonance coronary artery wall imaging: comparison with multislice computed tomography and quantitative coronary angiography
    Susan B Yeon
    Department of Medicine Cardiovascular Division, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Massachusetts 02215, USA
    J Am Coll Cardiol 50:441-7. 2007
    ....
  22. ncbi In vivo molecular imaging of acute and subacute thrombosis using a fibrin-binding magnetic resonance imaging contrast agent
    Rene M Botnar
    Department of Medicine, Cardiovascular Division, Beth Israel Deaconess Medical Center and Harvard Medical School, Boston, Mass, USA
    Circulation 109:2023-9. 2004
    ..We sought to test the feasibility of direct imaging of acute and subacute thrombosis using MRI together with a novel fibrin-binding gadolinium-labeled peptide, EP-1873, in an experimental animal model of plaque rupture and thrombosis...
  23. ncbi Comparison of aortic elasticity determined by cardiovascular magnetic resonance imaging in obese versus lean adults
    Peter G Danias
    Cardiovascular, Beth Israel Deaconess Medical Center, Boston, Massachusetts 02215, USA
    Am J Cardiol 91:195-9. 2003
    ..In clinically healthy young adult obese men, obesity is associated with increased cross-sectional aortic area and decreased aortic elasticity...
  24. ncbi Detection of pulmonary vein and left atrial scar after catheter ablation with three-dimensional navigator-gated delayed enhancement MR imaging: initial experience
    Dana C Peters
    Department of Medicine, Cardiovascular Division, Beth Israel Deaconess Medical Center and Harvard Medical School, 330 Brookline Ave, RW 453, Boston, MA 02215, USA
    Radiology 243:690-5. 2007
    ..To prospectively evaluate whether scar caused by radiofrequency (RF) ablation of the left atrium (LA) in patients with atrial fibrillation can be depicted with high-spatial-resolution delayed enhancement magnetic resonance (MR) imaging...
  25. ncbi The BioImage Study: novel approaches to risk assessment in the primary prevention of atherosclerotic cardiovascular disease--study design and objectives
    Pieter Muntendam
    BG Medicine Inc, Waltham, MA, USA
    Am Heart J 160:49-57.e1. 2010
    ..The BioImage Study will help identify those patients with subclinical atherosclerosis who are at risk for near-term atherothrombotic events and enable a more personalized management of care...
  26. ncbi Differential impact of age, sex, and hypertension on aortic atherosclerosis: the Framingham Heart Study
    Noriko Oyama
    Departments of Medicine Cardiovascular Division, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA 02215, USA
    Arterioscler Thromb Vasc Biol 28:155-9. 2008
    ..The purpose of this study was to investigate the impact of age, sex, and hypertension (HTN) on aortic atherosclerotic burden using cardiovascular MRI (CMR) in a free-living longitudinally followed cohort...
  27. ncbi Contrast-enhanced specific absorption rate-efficient 3D cardiac cine with respiratory-triggered radiofrequency gating
    Markus Henningsson
    Cardiovascular Division, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Massachusetts, USA
    J Magn Reson Imaging 37:986-92. 2013
    ....
  28. ncbi Fast interactive real-time magnetic resonance imaging of cardiac masses using spiral gradient echo and radial steady-state free precession sequences
    Elmar Spuentrup
    Department of Diagnostic Radiology, Beth Israel Deaconess Medical Center and Harvard Medical School, Boston, MA, USA
    Invest Radiol 38:288-92. 2003
    ..However, this technique may be limited in patients with dyspnoe or arrhythmia. The aim of this study was the evaluation of an interactive MR-approach for the detection and localization of cardiac masses...
  29. ncbi Age and sex distribution of subclinical aortic atherosclerosis: a magnetic resonance imaging examination of the Framingham Heart Study
    Farouc A Jaffer
    Harvard-Thorndike Laboratory of the Department of Medicine, Cardiovascular Division, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Mass 02215, USA
    Arterioscler Thromb Vasc Biol 22:849-54. 2002
    ..These noninvasive CMR data extend the prior autopsy-based prevalence estimates of subclinical atherosclerosis and may help to lay the foundation for future studies of risk stratification and treatment of affected individuals...