Results 11 to 20 of about 1,805,148 (246)

Validation of OSEM algorithm for attenuation correction in cardiac SPECT studies [PDF]

, 2005
Photon attenuation is believed to be one of the major causes of artefacts in cardiac SPECT studies and therefore should be corrected to improve the specificity of cardiac SPECT imaging for the detection of coronary artery disease.
Alenezi, Ahmed M
core   +6 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

Computed tomography-osteoaboorptiometry [PDF]

, 1990
A method of making a visual display of subchondral mineralization in the major synovial joints is described. Unlike existing procedures, it can be used on the living subject. A modified application of computed tomography-densitometry, computed tomography-
Müller-Gerbl, Magdalena, Wimmer, Berthold, Hodapp, Norbert, Putz, Reinhard, Schulte, Erik   +4 more
core   +1 more source

First Follow-Up of Cardiac Amyloidosis Treated by Tafamidis, Evaluated by Absolute Quantification in Bone Scintigraphy

JACC: Case Reports, 2021
Assessment of absolute myocardial hydroxydimethylene diphosphonate–technetium-99m uptake using standardized uptake value with a single-photon emission computed tomography–computed tomography cadmium zinc telluride camera (Discovery NM/CT 670CZT, GE ...
Dimitri Bellevre, MD, Alban Bailliez, MD, PhD, Sylvestre Maréchaux, MD, PhD, Alain Manrique, MD, PhD, Frédéric Mouquet, MD, PhD   +4 more
doaj   +1 more source

Identification of a small pericardial effusion on contrast-enhanced computed tomography indicating cardiac perforation and pericardial injury following blunt trauma: A case report

Trauma Case Reports, 2021
Blunt trauma may cause cardiac perforation requiring emergency surgical repair. Cardiac perforations are usually diagnosed by the presence of a pericardial effusion on echocardiography.
Ryo Esumi, Tadashi Kaneko, Yuichi Akama, Toru Shinkai, Yohei Ieki, Saki Bessho, Yu Shomura, Hiroshi Imai   +7 more
doaj   +1 more source

An experimental survey of metal artefact reduction in computed tomography [PDF]

, 2013
We present a survey of techniques for the reduction of streaking artefacts caused by metallic objects in X-ray Computed Tomography (CT) images. A comprehensive review of the existing state-of- the-art Metal Artefact Reduction (MAR) techniques, drawn ...
Van Slambrouck, Katrien, Nuyts, Johan, Breckon, Toby P., Van Slambrouck, K., Breckon, T.P., Megherbi, N., Megherbi Bouallagui, Najla, Mouton, Andre, Nuyts, J., Mouton, A.   +9 more
core   +1 more source

Calcification of tricuspid valve chordae tendineae on echocardiography and computed tomography

Radiology Case Reports, 2020
We present the appearance of chordae tendineae calcification on transthoracic echocardiography and ECG-gated cardiac computed tomography in a 75 year-old woman.
Michael W. Song, BS, Pierre Maldjian, MD, Alfonso Waller, MD   +2 more
doaj   +1 more source

Cardiac computed tomography in infective endocarditis [PDF]

Medicinski Podmladak
Infective endocarditis is a rare disease with an increasing incidence and an unchanged high mortality rate, despite the rapid medical development. Imaging plays integrative part in diagnosis of IE, with echocardiography as main diagnostic test.
Petković Ana, Maksimović Ružica, Ivanović Branislava   +2 more
doaj   +1 more source

Massive mitral annular calcification mimicking intracardiac mass: Multimodality approach to diagnosis

Radiology Case Reports, 2018
The correct differential diagnosis of cardiac masses can be challenging and often carries important clinical implications. We present the case of a 78-year-old man with a cardiac mass of unclear etiology diagnosed on echocardiography.
Fabio Caruso, MD, Luisa Ventura, MD, Dafne Viliani, MD, Sabino Walter Della Sala, MD   +3 more
doaj   +1 more source