Advanced

AJNR - American Journal of Neuroradiology

Published ahead of print on October 9, 2007
doi: 10.3174/ajnr.A0822

This Article Abstract Full Text Full Text (PDF) Alert me when this article is cited Alert me if a correction is posted Citation Map Services Similar articles in this journal Similar articles in PubMed Alert me to new issues of the journal Download to citation manager Citing Articles Citing Articles via CrossRef Citing Articles via Google Scholar Google Scholar Articles by Toyota, S. Articles by Yoshimine, T. Search for Related Content PubMed PubMed Citation Articles by Toyota, S. Articles by Yoshimine, T.

Intravenous 3D Digital Subtraction Angiography in the Diagnosis of Unruptured Intracranial Aneurysms

S. Toyota^a, K. Iwaisako^a, H. Takimoto^a and T. Yoshimine^a

^a From the Department of Neurosurgery, Osaka Neurological Institute, Osaka, Japan
^b Department of Neurosurgery, Osaka University Medical School, Osaka, Japan

View larger version (56K): [in this window] [in a new window]   Fig 1. MRA time-of-flight image (case 1). A, An aneurysm in the right internal carotid artery was suggested. B, Volume rendering image of IV 3D DSA (case 1). The aneurysm and its relationship with the surrounding arterial branches were depicted. 1 indicates internal carotid artery; 2, middle cerebral artery; 3, posterior cerebral artery; 4, A1 segment of the anterior cerebral artery. C, MIP of IV 3D DSA (case 1). The size of the aneurysm was 14.7 x 9.1 mm for the aneurysm sack and 5.5 mm for the neck. D, Volume rendering images of IA 3D DSA (case 1). The aneurysm was depicted in higher spatial resolution, and small vessels surrounding the aneurysm were revealed (arrows).

View larger version (43K): [in this window] [in a new window]   Fig 2. MRA time-of-flight image (case 2). A, A small aneurysm in the anterior communicating artery was suggested. B, Volume rendering images of IV 3D DSA (case 2). A small aneurysm was recognized, and the surrounding arterial branches were depicted. C, MIP of IV 3D DSA (case 2). The size of the aneurysm was 3.2 x 2.2 mm for the aneurysm sack and 3.2 mm for the neck.

View larger version (41K): [in this window] [in a new window]   Fig 3. MRA time-of-flight image (case 3). A, A small aneurysm in the left middle cerebral artery was suggested. B, Volume rendering images of IV 3D DSA (case 3). The suggested aneurysm was not recognized. The suggested lesion was thought to be the curved portion of the M1 segment of the left middle cerebral artery. C, MIP of IV 3D DSA (case 3). The suggested aneurysm was not recognized.

View larger version (39K): [in this window] [in a new window]   Fig 4. MRA time-of-flight image (case 4). A, A small aneurysm in the anterior communicating artery was suggested. B, Volume rendering images of IV 3D DSA (case 4). The suggested aneurysm was not recognized. The suggested lesion was thought to be the curved portion of the anterior communicating artery. C, MIP of IV 3D DSA (case 4). The suggested aneurysm was not recognized.