Age-related differences in image quality of prospectively ECG-triggered axial and helical scans for coronary CT angiography

2016 ◽  
Vol 9 (2) ◽  
pp. 214-220
Author(s):  
Makoto Takase ◽  
Shinichiro Fujimoto ◽  
Kazuhisa Takamura ◽  
Haruyo Yamashita ◽  
Kenji Uno ◽  
...  
Keyword(s):  
Image Quality ◽  
Ct Angiography ◽  
Coronary Ct Angiography ◽  
Coronary Ct ◽  
Age Related

scholarly journals Diagnostic performance and image quality of iterative model-based reconstruction of coronary CT angiography using 100 kVp for heavily calcified coronary vessels

PLoS ONE ◽  
2019 ◽  
Vol 14 (9) ◽  
pp. e0222315 ◽  
Author(s):  
Junwoo Kim ◽  
Bon Seung Goo ◽  
Young-Seok Cho ◽  
Tae-Jin Youn ◽  
Dong Jun Choi ◽  
...  
Keyword(s):  
Image Quality ◽  
Ct Angiography ◽  
Diagnostic Performance ◽  
Coronary Ct Angiography ◽  
Coronary Vessels ◽  
Model Based ◽  
Coronary Ct ◽  
Iterative Model

Dose levels and image quality of second-generation 128-slice dual-source coronary CT angiography in clinical routine

2015 ◽  
Vol 120 (12) ◽  
pp. 1112-1121 ◽  
Author(s):  
Julian L. Wichmann ◽  
Xiaohan Hu ◽  
Alexander Engler ◽  
J. Matthias Kerl ◽  
Martin Beeres ◽  
...  
Keyword(s):  
Image Quality ◽  
Ct Angiography ◽  
Coronary Ct Angiography ◽  
Second Generation ◽  
Clinical Routine ◽  
Coronary Ct ◽  
Dual Source ◽  
Dose Levels

scholarly journals Image Quality of Prospectively ECG-Triggered Coronary CT Angiography in Heart Transplant Recipients

2018 ◽  
Vol 210 (2) ◽  
pp. 314-319 ◽  
Author(s):  
Andrea Bartykowszki ◽  
Márton Kolossváry ◽  
Ádám Levente Jermendy ◽  
Júlia Karády ◽  
Bálint Szilveszter ◽  
...  
Keyword(s):  
Image Quality ◽  
Ct Angiography ◽  
Heart Transplant ◽  
Coronary Ct Angiography ◽  
Transplant Recipients ◽  
Coronary Ct ◽  
Heart Transplant Recipients

scholarly journals The Impact of Different Levels of Adaptive Iterative Dose Reduction 3D on Image Quality of 320-Row Coronary CT Angiography: A Clinical Trial

PLoS ONE ◽  
2015 ◽  
Vol 10 (5) ◽  
pp. e0125943 ◽  
Author(s):  
Sarah Feger ◽  
Matthias Rief ◽  
Elke Zimmermann ◽  
Peter Martus ◽  
Joanne Désirée Schuijf ◽  
...  
Keyword(s):  
Clinical Trial ◽  
Image Quality ◽  
Dose Reduction ◽  
Ct Angiography ◽  
Coronary Ct Angiography ◽  
Coronary Ct ◽  
The Impact ◽  
Different Levels

scholarly journals Image quality of automatic coronary CT angiography reconstruction for patients with HR ≥ 75 bpm using an AI-assisted 16-cm z-coverage CT scanner

2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Cheng Yan ◽  
Guofeng Zhou ◽  
Xue Yang ◽  
Xiuliang Lu ◽  
Mengsu Zeng ◽  
...  
Keyword(s):  
Image Quality ◽  
Ct Angiography ◽  
Motion Correction ◽  
Coronary Ct Angiography ◽  
Average Score ◽  
Ct Scanner ◽  
Phase Selection ◽  
Coronary Ct ◽  
Coronary Artery Segment

Abstract Background Coronary CT angiography (CCTA) is a complicated CT exam in comparison to other CT protocols. Exam success highly depends on image assessment of experienced radiologist and the procedure is often time-consuming. This study aims to evaluate feasibility of automatic CCTA reconstruction in 0.25 s rotation time, 16 cm coverage CT scanner with best phase selection and AI-assisted motion correction. Methods CCTA exams of 90 patients with heart rates higher than 75 bpm were included in this study. Two image series were reconstructed—one at automatically selected phase and another with additional motion correction. All reconstructions were performed without manual interaction of radiologist. A four-point Likert scale rating system was used to evaluate the image quality of coronary artery segment by two experienced radiologists, according to the 18-segment model. Analysis was done on per-segment basis. Results Total 1194 out of the 1620 segments were identified for quality evaluation in 90 patients. After automatic best phase selection, 1172 segments (98.3%) were rated as having diagnostic image quality (scores 2–4) and the average score is 3.64 ± 0.55. When motion corrections were applied, diagnostic segment number increases to 1192 (99.8%) and the average score is 3.85 ± 0.37. Conclusions With the help of 0.25 s rotation speed, 16-cm z-coverage and AI-assisted motion correction algorithm, CCTA exam reconstruction could be performed with minimum radiologist involvement and still meet image quality requirement.

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