Research Topics
| Cengizhan OzturkSummaryAffiliation: National Institutes of Health Country: USA Publications
| Collaborators
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Detail Information
Publications
Magnetic resonance imaging-guided vascular interventionsCengizhan Ozturk
Cardiovascular Branch, Division of Intramural Research, National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, MD, USA
Top Magn Reson Imaging 16:369-81. 2005..The potential of endovascular interventional MRI is great because as a single modality, it combines 3-dimensional anatomic imaging, device localization, hemodynamics, tissue composition, and function...- 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... - 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... - 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... - Real-time MRI guided atrial septal puncture and balloon septostomy in swineAmish N Raval
Cardiovascular Branch, Division of Intramural Research, National Heart Lung and Blood Institute, National Institutes of Health, Bethesda, Maryland 20892-1538, USA
Catheter Cardiovasc Interv 67:637-43. 2006..Septostomy achieved a mean left to right shunt ratio of 1.3:1 in these healthy animals. Interactive rtMRI permits rapid transcatheter ASP and BAS in swine. Further technical development may enable novel applications... - Antegrade percutaneous closure of membranous ventricular septal defect using X-ray fused with magnetic resonance imagingKanishka Ratnayaka
Translational Medicine Branch, Division of Intramural Research, National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, Maryland 20892 1538, USA
JACC Cardiovasc Interv 2:224-30. 2009.... - 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... - Real-time magnetic resonance imaging-guided stenting of aortic coarctation with commercially available catheter devices in SwineAmish N Raval
Division of Intramural Research, National Heart, Lung, and Blood Institute, National Institutes of Health, Bldg 10, Room 2c713, MSC 1538, Bethesda, MD 20892-1538, USA
Circulation 112:699-706. 2005..Patients may benefit from rtMRI in the future because of combined device and tissue imaging, freedom from ionizing radiation, and the ability to identify serious complications promptly... - Real-time magnetic resonance-guided endovascular repair of experimental abdominal aortic aneurysm in swineVenkatesh K Raman
Cardiovascular Branch, Division of Intramural Research, National Heart, Lung, and Blood Institute/NIH, Building 10, Rm 2C713, Bethesda, MD 20892-1538, USA
J Am Coll Cardiol 45:2069-77. 2005..Magnetic resonance imaging also permits immediate post-procedural anatomic and functional evaluation of successful aneurysm exclusion... - 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.... - Interventional MRI using multiple 3D angiography roadmaps with real-time imagingHaris Saybasili
Translational Medicine Branch, National Heart Lung and Blood Institute, National Institutes of Health, Bethesda, Maryland 20892 1061, USA
J Magn Reson Imaging 31:1015-9. 2010..To enhance real-time magnetic resonance (MR)-guided catheter navigation by overlaying colorized multiphase MR angiography (MRA) and cholangiopancreatography (MRCP) roadmaps in an anatomic context... - 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.... - Technology preview: X-ray fused with magnetic resonance during invasive cardiovascular proceduresLuis F Gutierrez
Laboratory of Cardiac Energetics, National Heart, Lung and Blood Institute, National Institutes of Health, Bethesda, Maryland
Catheter Cardiovasc Interv 70:773-82. 2007..We report our initial clinical experience applying XFM, using external fiducial markers, electrocardiogram (ECG)- gating, and automated real-time correction for gantry and table movement... - X-ray fused with magnetic resonance imaging (XFM) to target endomyocardial injections: validation in a swine model of myocardial infarctionRanil de Silva
Cardiovascular Branch, Division of Intramural Research, National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, MD 20892-1538, USA
Circulation 114:2342-50. 2006..CONCLUSIONS: Three-dimensional to two-dimensional registration of x-ray and MR images with the use of external fiducial markers accurately targets endomyocardial injection in a swine model of myocardial infarction... - RT-GROG: parallelized self-calibrating GROG for real-time MRIHaris Saybasili
Translational Medicine Branch, National Institutes of Health National Heart, Lung and Blood Institute NHLBI, Department of Health and Human Services DHHS, Bethesda, Maryland 20892 1061, USA
Magn Reson Med 64:306-12. 2010..On a 32-coil dataset of size 128 x 64, reconstruction performance is 14.5 frames per second (fps), while the data acquisition is 6.6 fps... - Novel technique for cardiac electromechanical mapping with magnetic resonance imaging tagging and an epicardial electrode sockOwen P Faris
Laboratory of Cardiac Energetics, National Institutes of Health, NHLBI, 10 Center Drive, Room B1D416, Bethesda, MD 20892, USA
Ann Biomed Eng 31:430-40. 2003..This method holds promise for improving understanding of the relationships between the patterns of electrical activation and contraction in the heart... - Invasive human magnetic resonance imaging: feasibility during revascularization in a combined XMR suiteAlexander J Dick
Cardiovascular Branch, National Heart, Lung, and Blood Institute, Bethesda, Maryland, USA
Catheter Cardiovasc Interv 64:265-74. 2005..An active quarter-wavelength guidewire coil does not provide superior imaging compared with IVUS, but provides satisfactory guidewire visualization. These tools may prove useful for advanced therapeutic procedures in the future... - Respiratory motion of the heart from free breathing coronary angiogramsGuy Shechter
Laboratory of Cardiac Energetics, NHLBI, National Institutes of Health, DHHS, Bethesda, MD 20892, USA
IEEE Trans Med Imaging 23:1046-56. 2004..In eight patients, the heart also translated anteriorly (mean, 1.3+/-1.8 mm; range, -0.4 to 5.1 mm) and rotated in a caudo-dextral direction (mean, 1.2 degrees+/-1.3 degrees; range, -1.9 degrees to 3.2 degrees)... - Endoventricular patch plasty for dyskinetic anteroapical left ventricular aneurysm increases systolic circumferential shortening in sheepPeng Zhang
Department of Surgery, University of California, San Francisco, Calif, USA
J Thorac Cardiovasc Surg 134:1017-24. 2007..We tested the hypotheses that the Dor procedure increases systolic circumferential shortening and longitudinal shortening in noninfarcted left ventricular regions in sheep... - The effect of anteroapical aneurysm plication on end-systolic three-dimensional strain in the sheep: a magnetic resonance imaging tagging studyJulius M Guccione
Department of Surgery, University of California, San Francisco, Calif, USA
J Thorac Cardiovasc Surg 131:579-586.e3. 2006..The primary goal of this study was to quantify the effect of anteroapical aneurysm plication on systolic deformation in noninfarcted adjacent (border zone) and remote left ventricular regions in sheep... - Cardiac dyssynchrony analysis using circumferential versus longitudinal strain: implications for assessing cardiac resynchronizationRobert H Helm
Division of Cardiology, Department of Medicine, Johns Hopkins Medical Institutions, 720 Rutland Ave, Baltimore, MD 21205, USA
Circulation 111:2760-7. 2005..These results highlight potential limitations to epsilonll-based analyses and support further efforts to develop noninvasive synchrony measures based on circumferential deformation...