Cengizhan Ozturk

Summary

Affiliation: National Institutes of Health
Country: USA

Publications

  1. pmc Estimating Motion From MRI Data
    Cengizhan Ozturk
    Member, IEEE, The Institute of Biomedical Engineering, Bogazici University, Istanbul, Turkey, and also with the National Institutes of Health, National Heart, Lung, and Blood Institute NHLBI, Bethesda, MD 20892 1538 USA e mail
    Proc IEEE Inst Electr Electron Eng 9:1627-1648. 2003
  2. pmc Magnetic resonance imaging-guided vascular interventions
    Cengizhan 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
  3. pmc Real-time magnetic resonance imaging-guided endovascular recanalization of chronic total arterial occlusion in a swine model
    Amish 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
  4. pmc MRI active guidewire with an embedded temperature probe and providing a distinct tip signal to enhance clinical safety
    Merdim 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
  5. pmc Mitral cerclage annuloplasty, a novel transcatheter treatment for secondary mitral valve regurgitation: initial results in swine
    June 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
  6. pmc Whole shaft visibility and mechanical performance for active MR catheters using copper-nitinol braided polymer tubes
    Ozgur 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
  7. pmc Real-time MRI guided atrial septal puncture and balloon septostomy in swine
    Amish 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
  8. pmc Antegrade percutaneous closure of membranous ventricular septal defect using X-ray fused with magnetic resonance imaging
    Kanishka 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
  9. pmc Real-time magnetic resonance imaging-guided stenting of aortic coarctation with commercially available catheter devices in Swine
    Amish 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
  10. pmc Interventional MRI using multiple 3D angiography roadmaps with real-time imaging
    Haris 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

Collaborators

Detail Information

Publications26

  1. pmc Estimating Motion From MRI Data
    Cengizhan Ozturk
    Member, IEEE, The Institute of Biomedical Engineering, Bogazici University, Istanbul, Turkey, and also with the National Institutes of Health, National Heart, Lung, and Blood Institute NHLBI, Bethesda, MD 20892 1538 USA e mail
    Proc IEEE Inst Electr Electron Eng 9:1627-1648. 2003
    ..New methods for modeling motion fields from MRI have now found application in cardiovascular and other soft tissue imaging. In this review, we shall describe the methods used for encoding, imaging, and modeling motion fields with MRI...
  2. pmc Magnetic resonance imaging-guided vascular interventions
    Cengizhan 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...
  3. pmc Real-time magnetic resonance imaging-guided endovascular recanalization of chronic total arterial occlusion in a swine model
    Amish 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
    ..Alternatively, MRI may delineate the artery within the occluded segment to enhance procedural safety and success. We hypothesized that real-time MRI (rtMRI)-guided CTO recanalization can be accomplished in an animal model...
  4. pmc MRI active guidewire with an embedded temperature probe and providing a distinct tip signal to enhance clinical safety
    Merdim 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...
  5. pmc Mitral cerclage annuloplasty, a novel transcatheter treatment for secondary mitral valve regurgitation: initial results in swine
    June 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...
  6. pmc Whole shaft visibility and mechanical performance for active MR catheters using copper-nitinol braided polymer tubes
    Ozgur 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...
  7. pmc Real-time MRI guided atrial septal puncture and balloon septostomy in swine
    Amish 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...
  8. pmc Antegrade percutaneous closure of membranous ventricular septal defect using X-ray fused with magnetic resonance imaging
    Kanishka 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
    ....
  9. pmc Real-time magnetic resonance imaging-guided stenting of aortic coarctation with commercially available catheter devices in Swine
    Amish 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
    ..We report a preclinical safety and feasibility study of rtMRI-guided stenting in a porcine model of aortic coarctation using only commercially available catheter devices...
  10. pmc Interventional MRI using multiple 3D angiography roadmaps with real-time imaging
    Haris 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...
  11. pmc Active two-channel 0.035'' guidewire for interventional cardiovascular MRI
    Ozgur 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
    ....
  12. pmc Technology preview: X-ray fused with magnetic resonance during invasive cardiovascular procedures
    Luis 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...
  13. pmc Real-time MR imaging-guided laser atrial septal puncture in swine
    Abdalla 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
    ....
  14. pmc Bayesian network prior: network analysis of biological data using external knowledge
    Senol Isci
    Bogazici University, Institute of Biomedical Engineering, Kandilli Campus, 34684, Cengelkoy Istanbul, TUBITAK BILGEM, Informatics and Information Security Research Center, 41470, Gebze Kocaeli and Istanbul Bilgi University, Department of Genetics and Bioengineering, 34060, Eyup Istanbul, Turkey
    Bioinformatics 30:860-7. 2014
    ..BNP depicts the relation between various evidence types that contribute to the event 'gene interaction' and is used to calculate the probability of a candidate graph (G) in the structure learning process...
  15. pmc X-ray fused with magnetic resonance imaging (XFM) to target endomyocardial injections: validation in a swine model of myocardial infarction
    Ranil 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
    ..We tested the accuracy of XFM using external fiducial markers to guide endomyocardial cell injections in infarcted swine hearts...
  16. pmc RT-GROG: parallelized self-calibrating GROG for real-time MRI
    Haris 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...
  17. pmc Novel technique for cardiac electromechanical mapping with magnetic resonance imaging tagging and an epicardial electrode sock
    Owen 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...
  18. doi request reprint Magnetic resonance imaging assessment of mechanical interactions between human lower leg muscles in vivo
    Alper Yaman
    Institute of Biomedical Engineering, Bogazici University, Istanbul 34342, Turkey
    J Biomech Eng 135:91003. 2013
    ..3% and 25.54%, respectively despite global isometric conditions. These findings confirm our hypothesis and show that in vivo, muscles are in principle not independent mechanically. ..
  19. doi request reprint Pathway analysis of high-throughput biological data within a Bayesian network framework
    Senol Isci
    Bogazici University, Institute of Biomedical Engineering, 34342, Istanbul, Turkey
    Bioinformatics 27:1667-74. 2011
    ..Here, we describe for the first time an algorithm that models biological pathways as BNs and identifies pathways that best explain given HTBD by scoring fitness of each network...
  20. doi request reprint Combined magnetic resonance and diffusion tensor imaging analyses provide a powerful tool for in vivo assessment of deformation along human muscle fibers
    Uluç Pamuk
    Institute of Biomedical Engineering, Bogazici University, 34684 Çengelköy, Istanbul, Turkey Electronic address
    J Mech Behav Biomed Mater 63:207-19. 2016
    ..This can help substantially achieving a better understanding of normal and pathological muscle function and mechanisms of treatment techniques. ..
  21. pmc Real-time magnetic resonance-guided endovascular repair of experimental abdominal aortic aneurysm in swine
    Venkatesh 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
    ....
  22. pmc Invasive human magnetic resonance imaging: feasibility during revascularization in a combined XMR suite
    Alexander 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...
  23. pmc Respiratory motion of the heart from free breathing coronary angiograms
    Guy 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)...
  24. pmc Cardiac dyssynchrony analysis using circumferential versus longitudinal strain: implications for assessing cardiac resynchronization
    Robert H Helm
    Division of Cardiology, Department of Medicine, Johns Hopkins Medical Institutions, 720 Rutland Ave, Baltimore, MD 21205, USA
    Circulation 111:2760-7. 2005
    ..It is unknown whether this analysis yields qualitative and/or quantitative results similar to those based on motion in the predominant muscle-fiber orientation (circumferential; epsiloncc)...
  25. pmc The effect of anteroapical aneurysm plication on end-systolic three-dimensional strain in the sheep: a magnetic resonance imaging tagging study
    Julius 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...
  26. pmc Endoventricular patch plasty for dyskinetic anteroapical left ventricular aneurysm increases systolic circumferential shortening in sheep
    Peng 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...