Results 11 to 20 of about 1,046,330 (152)

Computed tomography angiography and other applications of computed tomography

, 2015
Patients presenting with acute chest pain constitute a common and important diagnostic challenge. This has increased interest in using computed tomography for non-invasive visualization of coronary artery disease in patients presenting with acute chest pain to the emergency department; particularly the subset of patients who are suspected of having an ...
Michiel A de Graaf, Arthur JHA Scholte, Lucia Kroft, Jeroen J Bax   +3 more
core   +3 more sources

On artefact reduction, segmentation and classification of 3D computed tomography imagery in baggage security screening [PDF]

, 2014
This work considers novel image-processing and computer-vision techniques to advance the automated analysis of low-resolution, complex 3D volumetric Computed Tomography (CT) imagery obtained in the aviation-security-screening domain. Novel research is
Mouton, Andre
core   +7 more sources

Systematic review of the clinical effectiveness and cost-effectiveness of 64-slice or higher computed tomography angiography as an alternative to invasive coronary angiography in the investigation of coronary artery disease [PDF]

, 2008
Objectives: To assess the clinical effectiveness and cost-effectiveness, in different patient groups, of the use of 64-slice or higher computed tomography (CT) angiography, instead of invasive coronary angiography (CA), for diagnosing people with ...
Cummins, E., Fraser, Cynthia Mary, N Waugh, Cook, J., Cook, Jonathan Alistair, Fraser, C., S Walker, Cummins, E. (Ewen), E Cummins, Mowatt, G., Walker, S., Jia, Xueli, Waugh, Norman, C Fraser, G Mowatt, G Hillis, J Cook, Jian, X., Hillis, Graham S., X Jia, Waugh, N., Mowatt, Graham   +21 more
core   +3 more sources

ACC/AHA/ASE/ASNC/ASPC/HFSA/HRS/SCAI/SCCT/SCMR/STS 2023 Multimodality Appropriate Use Criteria for the Detection and Risk Assessment of Chronic Coronary Disease

Journal of Cardiovascular Magnetic Resonance, 2023
The American College of Cardiology (ACC) Foundation, along with key specialty and subspecialty societies, conducted an appropriate use review of stress testing and anatomic diagnostic procedures for risk assessment and evaluation of known or suspected ...
David E. Winchester, David J. Maron, Ron Blankstein, Ian C. Chang, Ajay J. Kirtane, Raymond Y. Kwong, Patricia A. Pellikka, Jordan M. Prutkin, Raymond Russell, Alexander T. Sandhu   +9 more
doaj   +1 more source

Anatomical and Three-Dimensional Study of the Female Feline Abdominal and Pelvic Vascular System Using Dissections, Computed Tomography Angiography and Magnetic Resonance Angiography

Veterinary Sciences, 2023
This study describes the anatomical characteristics of the abdominal and pelvic vascular system of two healthy mature female cats via three-dimensional contrast enhanced computed tomography angiography, non-contrast enhanced magnetic resonance ...
Daniel Rojo Ríos, Gregorio Ramírez Zarzosa, Marta Soler Laguía, David Kilroy, Francisco Martínez Gomariz, Cayetano Sánchez Collado, Francisco Gil Cano, María I. García García, María Dolores Ayala Florenciano, Alberto Arencibia Espinosa   +9 more
doaj   +1 more source

Pulmonary Artery Obstruction Index and Right Ventricular Dysfunction Signs in Initial and Follow up Pulmonary Computed Tomography Angiography in Acute Pulmonary Embolism [PDF]

Journal of Clinical and Diagnostic Research, 2017
Intoduction: Acute Pulmonary Embolism (APE) increases the pressure of the pulmonary arterial system with resulting Right Ventricle Dysfunction (RVD).
Mehmet Burak Çildag, Mustafa Gok, Can Zafer Karaman   +2 more
doaj   +1 more source

Coronary computed tomography angiography [PDF]

Canadian Medical Association Journal, 2015
Contrast medium is injected intravenously, and multidetector technology is used to take an image of the heart during a single breath hold (acquisition time ~8 s for 64 detectors). Blockade is recommended for patients with heart rates faster than 65 beats/min to improve image quality and to ...
Gilat, Grunau, Jonathon, Leipsic
openaire   +2 more sources

Coronary computed tomography angiography in children [PDF]

Pediatric Radiology, 2021
Imaging the coronary arteries of children, with their faster heart rates, small vessel size and common inability to lie still or breath-hold, has been a major challenge. With numerous advances in technology, CT examinations can now be performed quickly, often with children free-breathing and with much lower radiation doses than previously. This has led
LaDonna J. Malone, Cara E. Morin, Lorna P. Browne   +2 more
openaire   +2 more sources

Optimizing the diagnosis and assessment of chronic thromboembolic pulmonary hypertension with advancing imaging modalities

Pulmonary Circulation, 2021
Imaging is key to nearly all aspects of chronic thromboembolic pulmonary hypertension including management for screening, assessing eligibility for pulmonary endarterectomy, and post-operative follow-up. While ventilation/perfusion scintigraphy, the gold
Seth Kligerman, Albert Hsiao
doaj   +1 more source

Construction and Evaluation of Multiple Radiomics Models for Identifying the Instability of Intracranial Aneurysms Based on CTA

Frontiers in Neurology, 2022
Background and AimsIdentifying unruptured intracranial aneurysm instability is crucial for therapeutic decision-making. This study aims to evaluate the role of Radiomics and traditional morphological features in identifying aneurysm instability by ...
Ran Li, Pengyu Zhou, Xinyue Chen, Mahmud Mossa-Basha, Chengcheng Zhu, Yuting Wang   +5 more
doaj   +1 more source