Abstract:
:Though unilateral blood distribution of the vertebral artery has not been studied in humans, it is significant when considering the ischemic events especially embolic occlusion in vertebrobasilar system. To clarify the blood distribution, Krypton-81m was continuously infused into the vertebral arteries of 10 patients. Radioactivity was recorded by a rotating gamma camera. The perfusion images, reconstructed by computer in the transaxial plane, were classified according to whether the distribution was equal, or predominantly unilateral. Overlapping of blood supply from each vertebral artery was studied. In addition, the perfusion from one of the vertebral arteries revealed four distribution patterns with respect to laterality. A) ipsilateral; B) contralateral; C) bilateral; D) mosaic. Images obtained following perfusion of the vertebral artery show less uniformity compared to that of the internal carotid artery, suggesting a complicated vascular supply of the vertebral basilar territory. This complex distribution can be classified by the use of continuous infusion of Krypton-81m.
journal_name
Strokejournal_title
Strokeauthors
Taki W,Handa H,Higa T,Tanada S,Fukuyama H,Fujita T,Yonekawa Y,Kameyama M,Torizuka Kdoi
10.1161/01.str.15.3.469subject
Has Abstractpub_date
1984-05-01 00:00:00pages
469-74issue
3eissn
0039-2499issn
1524-4628journal_volume
15pub_type
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