Treutlein Christoph, Zeilinger Martin Georg, Dittrich Sven, Roth Jan-Peter, Wetzl Matthias, Heiss Rafael, Wuest Wolfgang, May Matthias Stefan, Uder Michael, Rompel Oliver
Institute of Radiology, University Hospital of Erlangen, Friedrich Alexander University Erlangen-Nürnberg, 91054 Erlangen, Germany.
Department of Pediatric Cardiology, University Hospital of Erlangen, Friedrich Alexander University Erlangen-Nürnberg, 91054 Erlangen, Germany.
Diagnostics (Basel). 2023 Jul 18;13(14):2403. doi: 10.3390/diagnostics13142403.
(1) Purpose: to compare right ventricular (RV) functional parameters in children with surgically repaired congenital heart disease (CHD) using single/double breath hold (BH) and free-breathing (FB) real-time compressed sensing (CS) cine cardiac magnetic resonance (cMRI) with standard retrospective segmented multi breath hold (RMB) cine cMRI. (2) Methods: Twenty patients with CHD underwent BH and FB, as well as RMB cine cMRI, at 3T to obtain a stack of continuous axial images of the RV. Two radiologists independently performed qualitative analysis of the image quality (rated on a 5-point scale; 1 = non-diagnostic to 5 = excellent) and quantitative analysis of the RV volume measurements. (3) Results: The best image quality was provided by RMB (4.5; range 2-5) compared to BH (3.9; range 3-5; = 0.04) and FB (3.6; range 3-5; < 0.01). The RV functional parameters were comparable among BH, FB, and RMB with a difference of less than 5%. The scan times for BH (44 ± 38 s, < 0.01) and FB (24 ± 7 s, < 0.01) were significantly reduced compared to for RMB (261 ± 68 s). (4) Conclusions: CS-FB and CS-BH real-time cine cMRI in children with CHD provides diagnostic image quality with excellent accuracy for measuring RV function with a significantly reduced scan time compared to RMB.
（1）目的：比较采用单次/两次屏气（BH）和自由呼吸（FB）实时压缩感知（CS）电影心脏磁共振成像（cMRI）与标准回顾性分段多次屏气（RMB）电影cMRI对先天性心脏病（CHD）手术修复患儿右心室（RV）功能参数的影响。（2）方法：20例CHD患儿在3T条件下接受BH和FB以及RMB电影cMRI检查，以获取RV的连续轴向图像堆栈。两名放射科医生独立对图像质量进行定性分析（采用5分制评分；1 = 非诊断性至5 = 优秀），并对RV容积测量进行定量分析。（3）结果：与BH（3.9；范围3 - 5；P = 0.04）和FB（3.6；范围3 - 5；P < 0.01）相比，RMB提供的图像质量最佳（4.5；范围2 - 5）。BH、FB和RMB之间的RV功能参数具有可比性，差异小于5%。与RMB（261 ± 68秒）相比，BH（44 ± 38秒，P < 0.01）和FB（24 ± 7秒，P < 0.01）的扫描时间显著缩短。（4）结论：CHD患儿的CS - FB和CS - BH实时电影cMRI提供了诊断图像质量，在测量RV功能方面具有出色的准确性，与RMB相比扫描时间显著缩短。
