Clinical application of 3.0 T MR imaging without contrast in coronary artery based on compressed SENSE technology
10.3760/cma.j.cn112149-20230130-00057
- VernacularTitle:基于压缩感知技术3.0 T MR无对比剂冠状动脉血管成像的临床应用可行性
- Author:
Xiankuo HU
1
;
Weishu HOU
;
Yang ZHANG
;
Yushan YUAN
;
Bin PENG
;
Peiqi MA
;
Yuanyuan LI
;
Xiaohu LI
Author Information
1. 安徽医科大学第一附属医院放射科，合肥 230022
- Keywords:
Magnetic resonance imaging;
Coronary artery;
Compressed SENSE
- From:
Chinese Journal of Radiology
2023;57(4):385-389
- CountryChina
- Language:Chinese
-
Abstract:
Objective:To explore the optimal acceleration factor and feasibility of the compressed SENSE (CS) technique in non-contrast MR coronary angiography (NMRCA) for clinical practice.Methods:The image data of completed coronary CTA and 3.0 T NMRCA sequence in 31 patients with suspected coronary heart disease were prospectively recruited at Fuyang People′s Hospital from August 2021 to November 2021. NMRCA sequences included conventional SENSE2 sequence and CS sequences with acceleration factors of 4, 5, and 6, respectively. The subjective scores of image quality and the objective scores, the contrast ratios between assessed coronaries and myocardium (CMCR) were compared among the 4 groups using the Friedman and Wilcoxon rank sum test.Results:Compared with the conventional SENSE2 [(343±46)s], the scan time of CS4 (269±36), CS5 (214±29) and CS6 (178±26) s were shortened by 21.5%, 37.5% and 48.0%, respectively. There was a good consistency between the subjective scores of the four groups (Kappa=0.769, 95% Cl 0.738-0.800). There was no significant difference in subjective score and CMCR value between CS4 and SENSE2 ( P>0.05). The coronary artery segments of CS5 and CS6 were significantly different from SENSE2 group ( P<0.05). Conclusions:For 3.0 T NMRCA, CS technology shows high feasibility. The CS4 can reduce imaging time while ensuring high-quality coronary arterial images, which has a well-established clinical application value for NMRCA.
