Magnetic Resonance Imaging (MRI) provides noninvasive method in clinical application. For the patients of Tetralogy of Fallot underwent surgical correction,regurgitation and turbulence in blood flow may still present in pulmonary arteries.In this study,Phase Contrast MR Imaging will be used to quantitate,and to observe blood flow in after repair Tetralogy of Fallot (TOF) patients.We use 3 parameters,which are Coefficient of Variance (CV),Regurgitant Fraction (RF) and Net Flow analysis to analyze two situations of blood flow in patients¡¦ left pulmonary artery ¡Bright pulmonary artery and main pulmonary artery.We also compare normal subjects to patients in this experiment.
The pulmonary circulation is the action of blood flow from right ventricular to main pulmonary artery then to left pulmonary artery and right pulmonary artery. We use three additional parameters: rPA / lPA flow ratio¡BPeak Velocities and Total Flow to observe the pulmonary blood flow. We use rPA / lPA flow ratio to identify the tendency of blood flow, with Peak Velocities to find out Peak Velocity in normal difference between patient.Meanwhile, the measurement of Total Flow is applied to observe the flow from main pulmonary artery to left and right pulmonary artery. We hope to use these parameters that can help doctors on clinical diagnosis.
| Identifer | oai:union.ndltd.org:NSYSU/oai:NSYSU:etd-0718112-180012 |
| Date | 18 July 2012 |
| Creators | Chen, Shin-Jhih |
| Contributors | Hsiao-Wen Chung, Cheng-Wen Ko, Tzu-Chao Chuang, Tzu-Cheng Chao |
| 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-0718112-180012 |
| Rights | user_define, Copyright information available at source archive |
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