Bewertung der 2D- und 3D-'Time-of-flight'-Magnetresonanz-Angiographie (MRA) in der Diagnostik von Nierenarterienstenosen
| Autor: | Hausmann R, Arlart Ip, Guhl L |
|---|---|
| Rok vydání: | 1992 |
| Předmět: |
medicine.medical_specialty
medicine.diagnostic_test business.industry Digital subtraction angiography Renal artery stenosis medicine.disease Magnetic resonance angiography Stenosis Coronal plane medicine.artery cardiovascular system Medicine Radiology Nuclear Medicine and imaging cardiovascular diseases Radiology Renal artery business Digital angiography |
| Zdroj: | RöFo - Fortschritte auf dem Gebiet der Röntgenstrahlen und der bildgebenden Verfahren. 157:59-64 |
| ISSN: | 1438-9010 1438-9029 |
| DOI: | 10.1055/s-2008-1032966 |
| Popis: | This study was carried out to evaluate time-of-flight RA in renal artery stenosis (RAS) in selected hypertensive patients (n = 41). In i.a. DSA studies, 10 unilateral, 8 bilateral RAS, and 4 unilateral RA occlusions were proven. MRA was done in coronal and axial 2D technique (FLASH), and in 3D technique (FISP) using GE-pulse sequences. DSA results were correlated with both 2D-individual slices, 2D- and 3D-MIP angiograms. Highest sensitivity and specificity was found for the axial 2D individual slice analysis (88%, 85% resp.), followed by the 3D-MIP MRA (78%, 80% resp.), and axial 2D-MIP MRA (73%, 79% resp.). MRA of renal arteries used in this study shows to be not adequate to DSA results due to many drawbacks. All MRA techniques, in particular the 3D-technique, tend to overestimate RAS occasionally pretending occlusions. |
| Databáze: | OpenAIRE |
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