Coronary Stent on Coronary CT Angiography: Assessment with Model-Based Iterative Reconstruction Technique

Low-dose dual-source CT angiography with iterative reconstruction for coronary artery stent evaluation.

OBJECTIVES The purpose of this study was to evaluate the image quality and diagnostic accuracy of very low-dose, dual-source computed tomography (DSCT) angiography for the evaluation of coronary stents. BACKGROUND Iterative reconstruction (IR) leads to substantial reduction of image noise and hence permits the use of very low-dose data acquisition protocols in coronary computed tomography ang...

Subtraction coronary CT angiography with iterative reconstruction: a feasibility study of coronary calcium subtraction

Coronary Vasospastic Angina: Assessment by Multidetector CT Coronary Angiography

OBJECTIVE We aimed to describe the imaging findings of multidetector CT coronary angiography (MDCTA) in cases of vasospastic angina (VA) and to determine the accuracy of MDCTA in the identification of VA as compared with invasive coronary angiography with an ergonovine provocation test (CAG with an EG test). MATERIALS AND METHODS Fifty-three patients with clinically suspected VA were enrolled...

Coronary CT Angiography in the Quantitative Assessment of Coronary Plaques

Coronary computed tomography angiography (CCTA) has been recently evaluated for its ability to assess coronary plaque characteristics, including plaque composition. Identification of the relationship between plaque composition by CCTA and patient clinical presentations may provide insight into the pathophysiology of coronary artery plaque, thus assisting identification of vulnerable plaques whi...

Stenosis quantification in coronary CT angiography: impact of an integrated circuit detector with iterative reconstruction.

OBJECTIVES The objective of this study was to assess the value of an integrated circuit (IC) detector, potentially improving spatial resolution by means of reduced cross talk between detector channels, in coronary computed tomographic (CT) angiography regarding image quality and stenosis quantification compared with conventional detector technology. MATERIALS AND METHODS In the ex vivo part o...