Recently magnetic resonance imaging has become more and more popular in clinical applications. In clinical studies, the heart of the TOF patient has some congenital defects. These defects lead to insufficient blood flowing into the pulmonary arteries, rendering the necessary of repair for TOF patients. However, even after repair, the blood in pulmonary arteries still cannot flow in the same way with those of normal people. For this reason, studies on the flow behavior of pulmonary arteries in TOF patients would be valuable in clinical applications.
In this study, we focus on the quantitative analysis of in-plane flow in branch pulmonary arteries (left and right pulmonary arteries) after repair of tetralogy of Fallot (TOF) by means of phase-contrast MR imaging. The regurgitation and turbulence were evaluated by coefficient of variance (CV) and regurgitant fraction. Vector map of in-plane flow was also included in order to facilitate the observation of flow patterns. Our result shows a positive correlation of CV and regurgitant fraction in terms of turbulence and regurgitation. Therefore, we conclude that CV and regurgitant fraction as well as vector maps may be helpful to quantitate in-plane flow for after repair of TOF patients, providing a more accurate analysis in clinical diagnosis.
| Identifer | oai:union.ndltd.org:NSYSU/oai:NSYSU:etd-0717106-093027 |
| Date | 17 July 2006 |
| Creators | Niu, Sheng-chun |
| Contributors | Chungnan Lee, Ming-Ting Wu, Cheng-Wen Ko, Yi-Ru Lin |
| Publisher | NSYSU |
| Source Sets | NSYSU Electronic Thesis and Dissertation Archive |
| Language | Cholon |
| Detected Language | English |
| Type | text |
| Format | application/pdf |
| Source | http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0717106-093027 |
| Rights | campus_withheld, Copyright information available at source archive |
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