Research Topics
| Ozgur KocaturkSummaryAffiliation: National Institutes of Health Country: USA Publications
| Collaborators
|
Detail Information
Publications
Whole shaft visibility and mechanical performance for active MR catheters using copper-nitinol braided polymer tubesOzgur Kocaturk
Translational Medicine Branch, Division of Intramural Research, National Heart Lung and Blood Institute, National Institutes of Health, Bethesda, MD, USA
J Cardiovasc Magn Reson 11:29. 2009..We explored the impact of braid material designs on radiofrequency and mechanical performance...- Active two-channel 0.035'' guidewire for interventional cardiovascular MRIOzgur Kocaturk
Translational Medicine Branch, Division of Intramural Research, National Heart Lung and Blood Institute, National Institutes of Health, Bethesda, Maryland 20892 1061, USA
J Magn Reson Imaging 30:461-5. 2009.... - Direct percutaneous left ventricular access and port closure: pre-clinical feasibilityIsrael M Barbash
Cardiovascular and Pulmonary Branch, Division of Intramural Research, the National Heart Lung and Blood Institute, National Institutes of Health, Bethesda, Maryland, USA
JACC Cardiovasc Interv 4:1318-25. 2011..This study sought to evaluate feasibility of nonsurgical transthoracic catheter-based left ventricular (LV) access and closure... - MRI active guidewire with an embedded temperature probe and providing a distinct tip signal to enhance clinical safetyMerdim Sonmez
Division of Intramural Research, National Heart Lung and Blood Institute, National Institutes of Health, Bethesda, MD 20892, USA
J Cardiovasc Magn Reson 14:38. 2012..035" (0.89 mm) guidewire for MRI right and left heart catheterization at 1.5 T that has an internal probe to monitor temperature in real-time, and that has both tip and shaft visibility as well as suitable flexibility... - Limitations of closing percutaneous transthoracic ventricular access ports using a commercial collagen vascular closure deviceIsrael M Barbash
Translational Medicine Branch, Division of Intramural Research, National Heart Lung and Blood Institute, National Institutes of Health, Bethesda, Maryland 20892 1538, USA
Catheter Cardiovasc Interv 77:1079-85. 2011..We evaluate the safety and feasibility of closing percutaneous direct ventricular access sites using a commercial collagen-based femoral artery closure device... - Active delivery cable tuned to device deployment state: enhanced visibility of nitinol occluders during preclinical interventional MRIJamie A Bell
Cardiovascular and Pulmonary Branch, Division of Intramural Research, National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, Maryland, USA
J Magn Reson Imaging 36:972-8. 2012..To develop an active delivery system that enhances visualization of nitinol cardiac occluder devices during deployment under real-time magnetic resonance imaging (MRI)... - A deflectable guiding catheter for real-time MRI-guided interventionsJamie A Bell
Cardiovascular and Pulmonary Branch, Division of Intramural Research, National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, Maryland, USA
J Magn Reson Imaging 35:908-15. 2012..To design a deflectable guiding catheter that omits long metallic components yet preserves mechanical properties to facilitate therapeutic interventional MRI procedures... 
Closed-chest transthoracic magnetic resonance imaging-guided ventricular septal defect closure in swineKanishka Ratnayaka
Cardiovascular and Pulmonary Branch, Division of Intramural Research, National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, Maryland, USA
JACC Cardiovasc Interv 4:1326-34. 2011..The aim of this study was to close ventricular septal defects (VSDs) directly through the chest wall using magnetic resonance imaging (MRI) guidance, without cardiopulmonary bypass, sternotomy, or radiation exposure...- Mitral cerclage annuloplasty, a novel transcatheter treatment for secondary mitral valve regurgitation: initial results in swineJune Hong Kim
Translational Medicine Branch, Division of Intramural Research, National Heart Lung and Blood Institute, NIH, Bethesda, MD 20892 1538, USA
J Am Coll Cardiol 54:638-51. 2009..We developed and tested a novel transcatheter circumferential annuloplasty technique to reduce mitral regurgitation in porcine ischemic cardiomyopathy... - Transapical aortic valve replacement under real-time magnetic resonance imaging guidance: experimental results with balloon-expandable and self-expanding stentsKeith A Horvath
Cardiothoracic Surgery Research Program, National Heart, Lung and Blood Institute, National Institutes of Health, Bethesda, MD, USA
Eur J Cardiothorac Surg 39:822-8. 2011..Whether there are different advantages to SE or BE stents is unknown. We report rtMRI-guided tAVI in a porcine model using both SE and BE stents, and compare the differences between the stents... - MRI-guided vascular access with an active visualization needleChristina E Saikus
Cardiovascular and Pulmonary Branch, Division of Intramural Research, National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, Maryland 20892 1061, USA
J Magn Reson Imaging 34:1159-66. 2011..To develop an approach to vascular access under magnetic resonance imaging (MRI), as a component of comprehensive MRI-guided cardiovascular catheterization and intervention... - Interventional cardiovascular magnetic resonance: still tantalizingKanishka Ratnayaka
Translational Medicine Branch, Division of Intramural Research, National Heart Lung and Blood Institute, National Institutes of Health, Bethesda, Maryland, USA
J Cardiovasc Magn Reson 10:62. 2008..We caution that this reflects our personal view of the "state of the art.".. - Real-time MR imaging-guided laser atrial septal puncture in swineAbdalla A Elagha
Division of Intramural Research, National Heart Lung and Blood Institute, National Institutes of Health, Bethesda, MD 20892 1538, USA
J Vasc Interv Radiol 19:1347-53. 2008.... - Visualization of active devices and automatic slice repositioning ("SnapTo") for MRI-guided interventionsAshvin K George
Translational Medicine Branch, National Heart Lung and Blood Institute, National Institutes of Health, Bethesda, Maryland, USA
Magn Reson Med 63:1070-9. 2010..CurveFind is typically able to reconstruct the device curve, with an average error of approximately 2 mm, even in the case of complex geometries... - Experimental model of large pulmonary embolism employing controlled release of subacute caval thrombus in swineIsrael M Barbash
Cardiovascular and Pulmonary Branch, Division of Intramural Research, National Heart Lung and Blood Institute, National Institutes of Health, Bethesda, MD 20892 1538, USA
J Vasc Interv Radiol 22:1471-7. 2011..To develop a catheter-based model of large pulmonary embolism (PE) in swine based on in situ venous thrombus formation... - Adaptive noise cancellation to suppress electrocardiography artifacts during real-time interventional MRIVincent Wu
Division of Intramural Research, National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, Maryland 20892 1538, USA
J Magn Reson Imaging 33:1184-93. 2011..To develop a system for artifact suppression in electrocardiogram (ECG) recordings obtained during interventional real-time magnetic resonance imaging (MRI)... - Real-time MRI-guided right heart catheterization in adults using passive cathetersKanishka Ratnayaka
Division of Intramural Research, Cardiovascular and Pulmonary Branch, National Heart Lung and Blood Institute, National Institutes of Health, Building 10, Room 2c713, MSC 1538, Bethesda, MD 20892 1538, USA
Eur Heart J 34:380-9. 2013..Simple procedures are the first step towards novel interventional procedures. We aim to perform comprehensive transfemoral diagnostic right heart catheterization in an unselected cohort of patients entirely using MRI guidance... - Blunt atrial transseptal puncture using excimer laser in swineAbdalla A Elagha
Cardiovascular Branch, Division of Intramural Research, National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, Maryland, USA
Catheter Cardiovasc Interv 70:585-90. 2007..We describe a new approach that may enhance safety of atrial transseptal puncture using a commercially available laser catheter that is capable of perforation only when energized. We test this approach in swine... - Real-time interactive MRI-guided cardiac surgery: aortic valve replacement using a direct apical approachElliot R McVeigh
Laboratory of Cardiac Energetics, National Heart Lung and Blood Institute, National Institutes of Health, Bethesda, Maryland 20892 1061, USA
Magn Reson Med 56:958-64. 2006..MRI-guided beating-heart surgery may provide patients with a less morbid and more durable solution to structural heart disease... - Real-time magnetic resonance imaging-guided endovascular recanalization of chronic total arterial occlusion in a swine modelAmish N Raval
Cardiovascular Branch, Division of Intramural Research, National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, MD 20892-1538, USA
Circulation 113:1101-7. 2006..CONCLUSIONS: Recanalization of long CTO is entirely feasible with the use of rtMRI guidance. Low-profile clinical-grade devices will be required to translate this experience to humans...