Hemodynamics of a right ventricular outflow tract aneurysm assessed with 4D flow MRI before and after unilateral pulmonary artery balloon angioplasty: A case report

Q4 Medicine

Radiology Case Reports Pub Date : 2025-05-15 DOI:10.1016/j.radcr.2025.04.083

Hideharu Oka MD, PhD , Kouichi Nakau MD , Keita Ito MD , Rina Imanishi MD , Kazunori Fukao RT , Sadahiro Nakagawa RT, PhD , Tatsuya Suzuki RT , Satoru Takahashi MD, PhD

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引用次数: 0

Abstract

Right ventricular outflow tract aneurysms are rare postoperative complications associated with congenital heart diseases. The hemodynamics associated with a right ventricular outflow tract aneurysm serve as important risk indicators for aneurysm expansion and thrombus formation; however, they have not been thoroughly evaluated. A 3-year-old girl was diagnosed with Double-outlet right ventricle who underwent surgical correction with patch enlargement of the right ventricular outflow tract at 2.5 years. Postoperatively, a patch expansion mass was observed and 4D flow MRI showed vortex flow. Notably, vortex flow within the aneurysm persisted even after balloon dilation of the unilateral pulmonary artery. Evaluating blood flow in right ventricular outflow tract aneurysms is crucial for determining prognosis and guiding treatment strategies.

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单侧肺动脉球囊成形术前后4D血流MRI评价右心室流出道动脉瘤血流动力学1例

摘要右心室流出道动脉瘤是罕见的先天性心脏病术后并发症。右室流出道动脉瘤相关的血流动力学是动脉瘤扩张和血栓形成的重要危险指标；然而，它们还没有得到彻底的评估。一个3岁的女孩被诊断为双出口右心室，在2.5岁时接受了右心室流出道斑块扩大的手术矫正。术后见斑块扩张肿块，4D血流MRI示漩涡血流。值得注意的是，即使在单侧肺动脉球囊扩张后，动脉瘤内的涡流仍然存在。评估右心室流出道动脉瘤的血流量对确定预后和指导治疗策略至关重要。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Radiology Case Reports Medicine-Radiology, Nuclear Medicine and Imaging

CiteScore

1.10

自引率

0.00%

发文量

1074

审稿时长

30 days

期刊介绍： The content of this journal is exclusively case reports that feature diagnostic imaging. Categories in which case reports can be placed include the musculoskeletal system, spine, central nervous system, head and neck, cardiovascular, chest, gastrointestinal, genitourinary, multisystem, pediatric, emergency, women''s imaging, oncologic, normal variants, medical devices, foreign bodies, interventional radiology, nuclear medicine, molecular imaging, ultrasonography, imaging artifacts, forensic, anthropological, and medical-legal. Articles must be well-documented and include a review of the appropriate literature.