Preoperative evaluation of potential living related kidney donors with high-spatial-resolution magnetic resonance (MR) angiography at 3 Tesla: comparison with intraoperative findings
| Autor: | Claus D. Claussen, Christian Thiel, Achim Seeger, Wolfgang Steurer, Stephan Miller, Gerhard Laub, Michael Fenchel, Ulrich Kramer, Paul Finn |
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| Rok vydání: | 2007 |
| Předmět: |
Adult
Male medicine.medical_specialty medicine.medical_treatment Renal artery stenosis Renal Artery Obstruction Renal Artery medicine.artery Preoperative Care medicine Living Donors Humans Radiology Nuclear Medicine and imaging Family Kidney transplantation Aged Aorta Kidney medicine.diagnostic_test business.industry Patient Selection Magnetic resonance imaging General Medicine Middle Aged medicine.disease Prognosis Kidney Transplantation Nephrectomy Transplantation Ostium medicine.anatomical_structure Treatment Outcome Radiology business Magnetic Resonance Angiography |
| Zdroj: | Investigative radiology. 42(11) |
| ISSN: | 0020-9996 |
| Popis: | PURPOSE The purpose of this prospective study was to determine the feasibility and accuracy of high-spatial-resolution MR imaging at 3 Tesla (T) in the preoperative evaluation of potential living related kidney donors. MATERIALS AND METHODS Eighteen potential donors (8 men, 10 women; mean age, 50.1 +/- 14.2 years) for renal transplantation were evaluated with 3 T MR imaging. A high-spatial-resolution 3-dimensional (3D) gradient-echo MR angiography (repetition time/echo time, 3.0/1.14 ms; flip, 19-23 degrees; matrix, 512; slice thickness, 1.0 mm) using parallel acquisition technique (GRAPPA) with an acceleration factor of 3 was performed on a whole body scanner. Images were evaluated in a prospective and blinded fashion by 2 MR radiologists. The number of renal arteries, presence of early branches (defined as a branch arising within 2 cm of the main renal ostium), and renal artery stenosis were analyzed. The renal parenchyma, collecting system and ureters, were evaluated on the MR urograms. Interpretation of MR images were compared with surgical findings. RESULTS Based on MR angiography data sets, a total of 36 main and 9 accessory renal arteries was found. There were 5 renal arteries presenting an early branching ( |
| Databáze: | OpenAIRE |
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