Diagnostik der akuten Subarachnoidalblutung- MR bei 0,5 Tesla mit der FLAIR-Sequenz
| Autor: | W Kopsa, G Perneczky, D Tscholakoff, H Leitner |
|---|---|
| Rok vydání: | 1998 |
| Předmět: |
Subarachnoid hemorrhage
business.industry Mr angiography Fluid-attenuated inversion recovery medicine.disease Mr imaging nervous system diseases Central nervous system disease Aneurysm medicine Radiology Nuclear Medicine and imaging In patient cardiovascular diseases Nuclear medicine business Sequence (medicine) |
| Zdroj: | RöFo - Fortschritte auf dem Gebiet der Röntgenstrahlen und der bildgebenden Verfahren. 169:355-359 |
| ISSN: | 1438-9010 1438-9029 |
| DOI: | 10.1055/s-2007-1015299 |
| Popis: | Purpose Evaluation of MR imaging in patients with acute subarachnoid hemorrhage (SAH) at 0.5 Tesla using the FLAIR (Fluid Attenuated Inversion Recovery) sequence. Additionally, the value of MR angiography (MRA) in the diagnosis of intracranial aneurysms was assessed. Materials and methods 19 patients with suspected acute SAH were included in this study. MR imaging was performed using an axial FLAIR sequence and axial T1, T2 and PD weighted sequences. In 16 patients an additional MRA (3D-TOF) was performed. 10 patients without SAH were examined as a control group. At the end of the study the 29 MR examinations were randomised and the images were read by two experienced radiologists; subsequently a consensus interpretation was made. Results In 16 patients an acute SAH was verified with the FLAIR sequence, in 13 cases the origin of hemorrhage was found during surgery. In the consensus interpretation of the MR images all cases were diagnosed properly. 12 of the 16 MRA studies were of diagnostic quality, but only 6 cases were interpreted correctly. Conclusion The FLAIR sequence at 0.5 Tesla proved effective in the diagnosis of acute SAH. MRA at 0.5 Tesla failed in the detection of intracranial aneurysms. |
| Databáze: | OpenAIRE |
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