An initial randomised study assessing free-breathing CCTA using 320-detector CT

Kang, Eun Hae; Lee, Jongmin; Lee, Ki-Nam; Kown, Heejin; Ha, Dong Ho; Kim, Rock Bum

doi:10.1007/s00330-012-2703-z

Cited by 17 publications

(7 citation statements)

References 20 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Including those patients could increase the number of unevaluable CCTAs and decrease the diagnostic accuracy in clinical practice. With fast acquisition, such as a temporal resolution of about 40 ms, CCTA images could become free of motion artefacts, even during free breathing [27], but coronary calcifications may still remain a considerable obstacle in some patients. Most studies of this meta-analysis applied spiral CT with retrospective gating.…”

Section: Discussionmentioning

confidence: 98%

Diagnostic accuracy and utility of coronary CT angiography with consideration of unevaluable results: A systematic review and multivariate Bayesian random-effects meta-analysis with intention to diagnose

Menke¹,

Kowalski²

2015

Eur Radiol

View full text Add to dashboard Cite

show abstract

Section: Discussionmentioning

confidence: 98%

Diagnostic accuracy and utility of coronary CT angiography with consideration of unevaluable results: A systematic review and multivariate Bayesian random-effects meta-analysis with intention to diagnose

Menke¹,

Kowalski²

2015

Eur Radiol

View full text Add to dashboard Cite

show abstract

“…Furthermore, with the 16-cm wide-detector collimation, CCTA in free-breathing is feasible and demonstrates excellent image quality. 12,20 This scan mode change not only requires more precise timing for the peak enhancement, but also enables shorter enhancement plateau thus shorter injection duration. There have been several previous studies that investigated the feasibility of contrast medium volume reduction in CCTA using the 320-row wide-detector system, 11,21,22 and demonstrated the ability of achieving similar image quality at reduced contrast dosage.…”

Section: Discussionmentioning

confidence: 99%

Contrast dose reduction with shortened injection durations in coronary CT angiography on 16-cm Wide-detector CT scanner

Jiao

et al. 2018

The British Journal of Radiology

View full text Add to dashboard Cite

(1) Coronary CT angiography (CCTA) scans with shortened contrast medium injection duration and late triggering are feasible with a 16-cm wide-detector CT system (2) Compared with the conventional CCTA with 10 s contrast injection duration, the new contrast injection protocol of using shortened injection duration (to 8 s) and late triggering reduces contrast dose to 36.2 ml, while maintaining adequate enhancement in vessels and reducing contrast-related artifacts.

show abstract

“…Previous literatures [ 14 , 15 ] reported free-breathing CCTA by dual-source CT, and the heart rate was controlled under 60 bpm. Other scholars [ 16 , 17 ] performed CCTA under free-breathing using 320-MDCT, and the heart rate was required to be 75 bpm or less due to the limitation of temporal resolution. It is thereby shown that free-breathing CCTA can be performed for patients with low heart rates, but there is no report about the feasibility for high heart rate (≥70 bpm).…”

Section: Discussionmentioning

confidence: 99%

Feasibility of Free-breathing CCTA using 256-MDCT

Liu

Sun²,

Zhang³

et al. 2016

Medicine

View full text Add to dashboard Cite

Usually, coronary computed tomography angiography (CCTA) is performed during breath-holding to reduce artifact caused by respiration. The objective of this study was to evaluate the feasibility of free-breathing CCTA compared to breath-holding using CT scanner with wide detector. To evaluate the feasibility of CCTA during free-breathing using a 256-MDCT. In 80 patients who underwent CCTA, 40 were performed during breath-holding (group A), and the remaining 40 during free-breathing (group B). The quality scores for coronary arteries were analyzed and defined as: 3 (excellent), 2 (good), and 1 (poor). The image noise, signal-to-noise ratio and effective radiation dose as well as the heart rate variation were compared. The noise, signal-to-noise ratio, and effective radiation dose were not significantly different between the 2 groups. The mean heart rate variation between planning and scanning for group A was 7 ± 7.6 bpm, and larger than 3 ± 2.6 bpm for group B (P = 0.012). Quality scores of the free-breathing group were better than those of the breath-holding group (group A: 2.55 ± 0.64, group B: 2.85 ± 0.36, P = 0.018). Free-breathing CCTA is feasible on wide detector CT scanner to provide acceptable image quality with reduced heart rate variation and better images for certain patients.

show abstract

An initial randomised study assessing free-breathing CCTA using 320-detector CT

Cited by 17 publications

References 20 publications

Diagnostic accuracy and utility of coronary CT angiography with consideration of unevaluable results: A systematic review and multivariate Bayesian random-effects meta-analysis with intention to diagnose

Diagnostic accuracy and utility of coronary CT angiography with consideration of unevaluable results: A systematic review and multivariate Bayesian random-effects meta-analysis with intention to diagnose

Contrast dose reduction with shortened injection durations in coronary CT angiography on 16-cm Wide-detector CT scanner

Feasibility of Free-breathing CCTA using 256-MDCT

Contact Info

Product

Resources

About