反映法洛四联症修复术后肺动脉反流负荷的心脏磁共振指标。

Cardiac magnetic resonance indices reflecting pulmonary regurgitation burden after tetralogy of Fallot repair.

作者信息

Sakrana A A, Al-Zubaidi S A, Nasr M M, Helmy E M, Al Ghamdi S S, Tahlawi M E

机构信息

Department of Diagnostic and Interventional Radiology, Mansoura University Hospital, 35112, 12 El-Gomhoreya Street, Mansoura, Egypt; Madina Cardiac Center, 23411, AL Madinah Al munawwrah, Khaled Bin Al Waleed Road, Saudi Arabia.

Madina Cardiac Center, 23411, AL Madinah Al munawwrah, Khaled Bin Al Waleed Road, Saudi Arabia.

出版信息

Clin Radiol. 2017 Oct;72(10):900.e9-900.e15. doi: 10.1016/j.crad.2017.05.013. Epub 2017 Jun 13.

DOI:10.1016/j.crad.2017.05.013

PMID:28622796

Abstract

AIM

To investigate cardiac magnetic resonance (CMR)-derived parameters to determine a convenient index reflecting the degree of pulmonary regurgitation (PR) after Tetralogy of Fallot (TOF) repair.

MATERIALS AND METHODS

Sixty-three patients (age at CMR study, 23.6 [10.2-34.7] years, 55.6% male) underwent CMR after TOF repair. PR was quantified using ventricular stroke volume difference and phase-contrast mapping of the main pulmonary artery flow. In both approaches, the PRV index (PRVI) and the PR fraction (PRF) were calculated and correlated to the right ventricle end-diastolic volume index (RVEDVI) and the right ventricle end-systolic volume index (RVESVI).

RESULTS

No statistically significant difference was observed between the PR volumes and the PRF measured by the stroke volume difference or the phase-contrast method. The PRVI was better correlated to RVEDVI and RVESVI than the PRF.

CONCLUSION

The PRVI exhibits more correlation to the RVEDVI than PRF. Thus, it could be a preferable parameter to reflect the PR burden.

摘要

目的

研究心脏磁共振成像（CMR）衍生参数，以确定一个方便的指标来反映法洛四联症（TOF）修复术后肺动脉反流（PR）的程度。

材料与方法

63例患者（CMR研究时年龄为23.6 [10.2 - 34.7]岁，55.6%为男性）在TOF修复术后接受了CMR检查。通过心室每搏输出量差异和主肺动脉血流的相位对比成像对PR进行量化。在这两种方法中，均计算PR容积指数（PRVI）和PR分数（PRF），并将其与右心室舒张末期容积指数（RVEDVI）和右心室收缩末期容积指数（RVESVI）进行相关性分析。