Now showing items 1-15 of 15

    • Accuracy and reproducibility of automated, standardized coronary transluminal attenuation gradient measurements 

      Chatzizisis, Yiannis; George, Elizabeth; Cai, Tianrun; Fulwadhva, Urvi P; Kumamaru, Kanako; Schultz, Kurt; Fujisawa, Yasuko; Rassi, Carlos; Steigner, Michael L.; Mather, Richard T.; Blankstein, Ron; Rybicki, Frank; Mitsouras, Dimitrios (Springer Nature, 2014)
      Purpose Coronary Computed Tomography Angiography (CCTA) contrast opacification gradients, or Transluminal Attenuation Gradients (TAG) offer incremental value to predict functionally significant lesions. This study ...
    • Anomalous origin of the coronary artery arising from the opposite sinus: prevalence and outcomes in patients undergoing coronary CTA 

      Cheezum, Michael; Ghoshhajra, Brian Burns; Bittencourt, Marcio S.; Hulten, Edward A.; Bhatt, Ami Bharat; Mousavi, Negareh; Shah, Nishant; Valente, Anne Marie; Rybicki, Frank; Steigner, Michael L.; Hainer, Jon; MacGillivray, Thomas; Hoffmann, Udo; Abbara, Suhny; Di Carli, Marcelo F.; DeFaria Yeh, Doreen; Landzberg, Michael Job; Liberthson, Richard R.; Blankstein, Ron (Oxford University Press (OUP), 2016)
      Aims The impact of coronary computed tomographic angiography (CTA) on management of anomalous origin of the coronary artery arising from the opposite sinus (ACAOS) remains uncertain. We examined the prevalence, anatomical ...
    • Cardiovascular Imaging 2010 in the International Journal of Cardiovascular Imaging 

      Costa, Ricardo A.; Reiber, Johan H. C.; Rybicki, Frank John; Schoenhagen, Paul; Stillman, Arthur A.; de Sutter, Johan; van de Veire, Nico R. L.; van der Wall, Ernst E. (SpringerOpen, 2011)
    • Cardiovascular Imaging 2011 in the International Journal of Cardiovascular Imaging 

      Costa, Ricardo A.; Bezerra, Hiram G.; Reiber, Johan H. C.; Rybicki, Frank John; Schoenhagen, Paul; Stillman, Arthur A.; De Sutter, Johan; Van de Veire, Nico R. L.; van der Wall, Ernst E. (Springer Netherlands, 2012)
    • Contrast inhomogeneity in CT angiography of the abdominal aortic aneurysm 

      George, Elizabeth; Giannopoulos, Andreas A.; Aghayev, Ayaz; Rohatgi, Saurabh; Imanzadeh, Amir; Antoniadis, Antonios P.; Kumamaru, Kanako; Chatzizisis, Yiannis; Dunne, Ruth Mary; Steigner, Michael L.; Hanley, Michael; Gravereaux, Edwin Charles; Rybicki, Frank; Mitsouras, Dimitrios (Elsevier BV, 2016)
      Background If undetected, infrarenal Abdominal Aortic Aneurysm (AAA) growth can lead to rupture, a high-mortality complication. Some AAA patients exhibit inhomogeneous luminal contrast attenuation at first-pass CT ...
    • CT Coronary Angiography: 256-Slice and 320-Detector Row Scanners 

      Hsiao, Edward M.; Rybicki, Frank; Steigner, Michael L. (Springer Nature, 2010)
      Multidetector computed tomography (MDCT) has rapidly evolved from 4-detector row systems in 1998 to 256-slice and 320-detector row CT systems. With smaller detector element size and faster gantry rotation speed, spatial ...
    • Evaluation of Artery Visualizations for Heart Disease Diagnosis 

      Borkin, Michelle Anne; Gajos, Krzysztof Z.; Peters, Amanda Elizabeth; Mitsouras, Dimitrios; Melchionna, Simone; Rybicki, Frank John; Feldman, Charles Lawrence; Pfister, Hanspeter (Institute of Electrical and Electronics Engineers, 2011)
      Heart disease is the number one killer in the United States, and finding indicators of the disease at an early stage is critical for treatment and prevention. In this paper we evaluate visualization techniques that enable ...
    • Hydrokinetic Approach to Large-Scale Cardiovascular Blood Flow 

      Melchionna, Simone; Bernaschi, Massimo; Succi, Sauro; Kaxiras, Efthimios; Rybicki, Frank John; Mitsouras, Dimitris; Coskun, Ahmet U.; Feldman, Charles Lawrence (Elsevier, 2010)
      We present a computational method for commodity hardware-based clinical cardiovascular diagnosis based on accurate simulation of cardiovascular blood flow. Our approach leverages the flexibility of the Lattice Boltzmann ...
    • Iodinated Contrast Opacification Gradients in Normal Coronary Arteries Imaged With Prospectively ECG-Gated Single Heart Beat 320-Detector Row Computed Tomography 

      Steigner, Michael L.; Mitsouras, Dimitrios; Whitmore, A. G.; Otero, H. J.; Wang, C.; Buckley, O.; Levit, N. A.; Hussain, A. Z.; Cai, Tianxi; Mather, R. T.; Smedby, O.; DiCarli, M. F.; Rybicki, F (Ovid Technologies (Wolters Kluwer Health), 2009)
      Background To define and evaluate coronary contrast opacification gradients using prospectively ECG-gated single heart beat 320-detector row coronary angiography (CTA). Methods and Results Thirty-six patients with ...
    • Noninvasive Vascular Images for Face Transplant Surgical Planning 

      Soga, Shigeyoshi; Wake, Nicole; Bueno, Ericka; Steigner, Michael L.; Mitsouras, Dimitrios; Schultz, Kurt; Diaz-Siso, J. Rodrigo; Sisk, Geoffroy Courcelle; Prior, Richard; Powers, Sara L.; Signorelli, Jason; Jania, Camille K.; Pomahac, Bohdan; Rybicki, Frank (Open Science, 2011)
      Objective: Face transplantation replaces substantial defects with anatomically identical donor tissues; preoperative vascular assessment relies on noninvasive imaging to separate and characterize the external carotid vessels ...
    • The “Post-64” Era of Coronary CT Angiography: Understanding New Technology from Physical Principles 

      Otero, Hansel J.; Steigner, Michael L.; Rybicki, Frank (Elsevier BV, 2009)
    • Reduced exposure using asymmetric cone beam processing for wide area detector cardiac CT 

      Bedayat, Arash; Rybicki, Frank; Kumamaru, Kanako; Powers, Sara L.; Signorelli, Jason; Steigner, Michael L.; Steveson, Chloe; Soga, Shigeyoshi; Adams, Kimberly; Mitsouras, Dimitrios; Clouse, Melvin Eugene; Mather, Richard T. (Springer Nature, 2011)
      The purpose of this study was to estimate dose reduction after implementation of asymmetrical cone beam processing using exposure differences measured in a water phantom and a small cohort of clinical coronary CTA patients. ...
    • Reduced Radiation Exposure for Face Transplant Surgical Planning Computed Tomography Angiography 

      Schultz, Kurt; George, Elizabeth; Mullen, Katherine M; Steigner, Michael L.; Mitsouras, Dimitrios; Bueno, Ericka; Pomahac, Bohdan; Rybicki, Frank John; Kumamaru, Kanako (Public Library of Science, 2013)
      Objective: To test the hypothesis that wide area detector face transplant surgical planning CT angiograms with simulated lower radiation dose and iterative reconstruction (AIDR3D) are comparable in image quality to those ...
    • Simulated 50 % radiation dose reduction in coronary CT angiography using adaptive iterative dose reduction in three-dimensions (AIDR3D) 

      Chen, Marcus Y.; Steigner, Michael L.; Leung, Steve W.; Kumamaru, Kanako K.; Schultz, Kurt; Mather, Richard T.; Arai, Andrew E.; Rybicki, Frank J. (Springer Netherlands, 2013)
      To compare the image quality of coronary CT angiography (CTA) studies between standard filtered back projection (FBP) and adaptive iterative dose reduction in three-dimensions (AIDR3D) reconstruction using CT noise additional ...
    • Three Patients with Full Facial Transplantation 

      Pomahac, Bohdan; Pribaz, Julian Joseph; Eriksson, Elof; Bueno, Ericka; Diaz-Siso, J. Rodrigo; Rybicki, Frank John; Annino, Donald James; Orgill, Dennis Paul; Caterson, Edward J; Caterson, Stephanie A.; Carty, Matthew Jonathan; Chun, Yoon Sun; Sampson, Christian Edward; Janis, Jeffrey E.; Alam, Daniel S.; Saavedra, Arturo; Molnar, Joseph A.; Edrich, Thomas; Marty, Francisco Miguel; Tullius, Stefan Gunther (New England Journal of Medicine (NEJM/MMS), 2012)
      Unlike conventional reconstruction, facial transplantation seeks to correct severe deformities in a single operation. We report on three patients who received full-face transplants at our institution in 2011 in operations ...