Three-dimensional CT angiography of intracranial vasospasm following subarachnoid haemorrhage

Neuroradiology - Tập 40 - Trang 631-635 - 1998
R. Takagi1, H. Hayashi1, H. Kobayashi1, T. Kumazaki1, K. Isayama2, Y. Ikeda2, A. Teramoto3
1Department of Radiology, Nippon Medical School Hospital, 1-1-5 Sendagi, Bunkyo-ku, Tokyo, 113, Japan e-mail:[email protected] Tel.: +81-3-58 14-62 40 Fax: +81-3-56 85-17 95, , JP
2Department of Emergency and Clinical Care Medicine, Nippon Medical School Hospital, Tokyo, Japan, , JP
3Department of Neurosurgery, Nippon Medical School Hospital, Tokyo, Japan, , JP

Tóm tắt

We evaluated the usefulness of three-dimensional CT angiography (3D-CTA) in the diagnosis of intracranial vasospasm following subarachnoid haemorrhage (SAH) in 13 patients suspected of having vasospasm on clinical grounds. The intracranial vessels were clearly shown by 3D-CTA in 12 patients. 3D-CTA revealed spasm in the vessels of nine patients. Catheter angiography performed in seven of these patients immediately after 3D-CTA confirmed vasospasm. A low-attenuation area was seen on CT in the other two patients, representing an ischaemic lesion due to the spasm. In nine patients, a second 3D-CTA was performed using the same technique 1 week after the first, showing no vasospasm. Initial 3D-CTA revealed no vasospasm change in three patients. Following 3D-CTA, one of these had conventional angiography, which also demonstrated no spasm.