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Abstract

Comparison of MR imaging and CT in patients with intracranial aneurysm clips.

S Holtås, M Olsson, B Romner, E M Larsson, H Säveland and L Brandt
American Journal of Neuroradiology September 1988, 9 (5) 891-897;
S Holtås
Department of Diagnostic Radiology, University Hospital, Lund, Sweden.
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M Olsson
Department of Diagnostic Radiology, University Hospital, Lund, Sweden.
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B Romner
Department of Diagnostic Radiology, University Hospital, Lund, Sweden.
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E M Larsson
Department of Diagnostic Radiology, University Hospital, Lund, Sweden.
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H Säveland
Department of Diagnostic Radiology, University Hospital, Lund, Sweden.
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L Brandt
Department of Diagnostic Radiology, University Hospital, Lund, Sweden.
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Abstract

CT and MR imaging of the brain were performed without complications in 16 patients who had undergone surgery for a ruptured aneurysm with the use of nonferromagnetic Yasargil 316 or Sugita Elgiloy clips. MR was performed on a 0.3-T Fonar beta-3000M imaging system. The artifacts caused by the clips were smaller on MR than on CT, and, therefore, anatomic structures such as the brainstem and temporal lobes were better visualized on MR. Brain-tissue lesions corresponding to the frontotemporal surgical approach were seen with MR in seven patients and with CT in six. In three patients temporal-lobe lesions seen on MR were not seen on CT because of beam-hardening artifacts. Lesions unrelated to the region of surgery were seen with MR in nine patients and with CT in five. In conclusion, MR was safe and superior to CT both in demonstrating anatomic details and in detecting tissue lesions in patients with aneurysm clips.

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American Journal of Neuroradiology
Vol. 9, Issue 5
1 Sep 1988
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Comparison of MR imaging and CT in patients with intracranial aneurysm clips.
S Holtås, M Olsson, B Romner, E M Larsson, H Säveland, L Brandt
American Journal of Neuroradiology Sep 1988, 9 (5) 891-897;

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Comparison of MR imaging and CT in patients with intracranial aneurysm clips.
S Holtås, M Olsson, B Romner, E M Larsson, H Säveland, L Brandt
American Journal of Neuroradiology Sep 1988, 9 (5) 891-897;
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