Author:
Takakado Masahiro,Kido Tomoyuki,Ogawa Ryo,Takimoto Yoshihiro,Tokuda Tsuyoshi,Tanabe Yuki,Kawaguchi Naoto,Pang Jianing,Komori Yoshiaki,Kido Teruhito
Abstract
Abstract
Purpose
We applied a combination of compressed-sensing (CS) and retrospective motion correction to free-breathing cine magnetic resonance (MR) (FBCS cine MoCo). We validated FBCS cine MoCo by comparing it with breath-hold (BH) conventional cine MR.
Materials and methods
Thirty-five volunteers underwent both FBCS cine MoCo and BH conventional cine MR imaging. Twelve consecutive short-axis cine images were obtained. We compared the examination time, image quality and biventricular volumetric assessments between the two cine MR.
Results
FBCS cine MoCo required a significantly shorter examination time than BH conventional cine (135 s [110–143 s] vs. 198 s [186–349 s], p < 0.001). The image quality scores were not significantly different between the two techniques (End-diastole: FBCS cine MoCo; 4.7 ± 0.5 vs. BH conventional cine; 4.6 ± 0.6; p = 0.77, End-systole: FBCS cine MoCo; 4.5 ± 0.5 vs. BH conventional cine; 4.5 ± 0.6; p = 0.52). No significant differences were observed in all biventricular volumetric assessments between the two techniques. The mean differences with 95% confidence interval (CI), based on Bland–Altman analysis, were − 0.3 mL (− 8.2 − 7.5 mL) for LVEDV, 0.2 mL (− 5.6 − 5.9 mL) for LVESV, − 0.5 mL (− 6.3 − 5.2 mL) for LVSV, − 0.3% (− 3.5 − 3.0%) for LVEF, − 0.1 g (− 8.5 − 8.3 g) for LVED mass, 1.4 mL (− 15.5 − 18.3 mL) for RVEDV, 2.1 mL (− 11.2 − 15.3 mL) for RVESV, − 0.6 mL (− 9.7 − 8.4 mL) for RVSV, − 1.0% (− 6.5 − 4.6%) for RVEF.
Conclusion
FBCS cine MoCo can potentially replace multiple BH conventional cine MR and improve the clinical utility of cine MR.
Publisher
Springer Science and Business Media LLC
Subject
Radiology, Nuclear Medicine and imaging