Coronary artery calcium quantification from contrast enhanced CT using gemstone spectral imaging and material decomposition
نویسندگان
چکیده
منابع مشابه
Pulmonary Bone Cement Embolism: CT Angiographic Evaluation with Material Decomposition Using Gemstone Spectral Imaging
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متن کاملCoronary Artery Calcium Quantification in Contrast-enhanced Computed Tomography Angiography
Coronary arteries are the blood vessels supplying oxygen-rich blood to the heart muscles. Coronary artery calcium (CAC), which is the total amount of calcium deposited in these arteries, indicates the presence or the future risk of coronary artery diseases. Quantification of CAC is done by using computed tomography (CT) scan which uses attenuation of xray by different tissues in the body to gen...
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OBJECTIVE To evaluate the feasibility of coronary artery calcium scoring based on three virtual noncontrast-enhanced (VNC) images derived from single-source spectral dual-energy CT (DECT) as compared with true noncontrast-enhanced (TNC) images. MATERIALS AND METHODS This prospective study was conducted with the approval of our Institutional Review Board. Ninety-seven patients underwent noncon...
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Spectral CT is a promising new imaging modality that is able to provide spectral information of several pre-selected energy ranges in one image acquisition, which allows quantitative decomposition of multiple materials. In addition to conventional reconstruction, novel decomposition techniques should be developed to realize material separation. Decomposition of multienergy X-ray data into basis...
متن کاملCoronary calcium quantification using contrast‐enhanced dual‐energy computed tomography scans
The purpose of this study is to evaluate a direct measure of calcium burden by using dual-energy computed tomography (DECT) during contrast-enhanced coronary imaging, potentially eliminating the need for an extra noncontrast X-ray acquisition. The ambiguity of separation of calcium from contrast material on contrast-enhanced images was solved by using virtual noncontrast images obtained by DECT...
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ژورنال
عنوان ژورنال: The International Journal of Cardiovascular Imaging
سال: 2014
ISSN: 1569-5794,1573-0743
DOI: 10.1007/s10554-014-0474-0