Universität zu Köln

Van Hedent, Steven, Hokamp, Nils Grosse, Kessner, Rivka, Gilkeson, Robert, Ros, Pablo R. and Gupta, Amit (2018). Effect of Virtual Monoenergetic Images From Spectral Detector Computed Tomography on Coronary Calcium Blooming. J. Comput. Assist. Tomogr., 42 (6). S. 912 - 919. PHILADELPHIA: LIPPINCOTT WILLIAMS & WILKINS. ISSN 1532-3145

Full text not available from this repository.

Abstract

Objective The aim of this study was to investigate the quantitative and qualitative effects of virtual monoenergetic images (VMI) by spectral detector computed tomography (SDCT) on calcium blooming in coronary computed tomography angiography. Methods Coronary computed tomography angiography using SDCT was performed on 42 patients with coronary artery calcifications. Stenosis grading by diameter and area of calcified plaques and free lumen using VMI from 70 to 140 keV was performed and compared with measurements by conventional images. In addition, interobserver reliability and subjective image quality were assessed by 2 experienced readers. Results A total of 61 coronary arteries were evaluated. Stenosis grading by diameter and area showed significant incremental decrease, from 48.86% to 22.82% and from 41.18% to 11.33%, respectively, with increasing VMI (P < 0.05). Interobserver reliability was excellent (intraclass correlation coefficient >0.99). Overall image quality was best at 80 keV. Conclusions Calcium blooming significantly decreases at higher monoenergetic levels from SDCT, increasing luminal dimensions and decreasing stenotic grading, with best overall subjective image quality using 80-keV VMI.

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Van Hedent, Steven UNSPECIFIED UNSPECIFIED UNSPECIFIED Hokamp, Nils Grosse UNSPECIFIED UNSPECIFIED UNSPECIFIED Kessner, Rivka UNSPECIFIED UNSPECIFIED UNSPECIFIED Gilkeson, Robert UNSPECIFIED UNSPECIFIED UNSPECIFIED Ros, Pablo R. UNSPECIFIED UNSPECIFIED UNSPECIFIED Gupta, Amit UNSPECIFIED UNSPECIFIED UNSPECIFIED
URN:	urn:nbn:de:hbz:38-167042
DOI:	10.1097/RCT.0000000000000811
Journal or Publication Title:	J. Comput. Assist. Tomogr.
Volume:	42
Number:	6
Page Range:	S. 912 - 919
Date:	2018
Publisher:	LIPPINCOTT WILLIAMS & WILKINS
Place of Publication:	PHILADELPHIA
ISSN:	1532-3145
Language:	English
Faculty:	Unspecified
Divisions:	Unspecified
Subjects:	no entry
Uncontrolled Keywords:	Keywords Language DUAL-ENERGY CT; ARTERY-DISEASE; ANGIOGRAPHY; ACCURACY; EXPERIENCE; SINGLE Multiple languages Radiology, Nuclear Medicine & Medical Imaging Multiple languages
Refereed:	Yes
URI:	http://kups.ub.uni-koeln.de/id/eprint/16704