Internal carotid occlusion following gamma knife radiosurgery for cavernous sinus meningioma.
Details
Serval ID
serval:BIB_610FB50171C3
Type
Article: article from journal or magazin.
Publication sub-type
Case report (case report): feedback on an observation with a short commentary.
Collection
Publications
Institution
Title
Internal carotid occlusion following gamma knife radiosurgery for cavernous sinus meningioma.
Journal
Stereotactic and Functional Neurosurgery
ISSN
1423-0372 (Electronic)
ISSN-L
1011-6125
Publication state
Published
Issued date
2007
Peer-reviewed
Oui
Volume
85
Number
6
Pages
303-306
Language
english
Notes
Publication types: Case Reports ; Journal Article
Publication Status: ppublish
Publication Status: ppublish
Abstract
Gamma knife radiosurgery is a safe and effective treatment for cavernous sinus meningioma, associated with a very low morbidity. However, a high dose of radiation could lead to modifications of the vascular wall such as in radiosurgical treatment of arteriovenous malformations. We present a patient treated by gamma knife radiosurgery for a left cavernous sinus meningioma using a margin dose of 13 Gy at the 50% isodose. A complete occlusion of the intracavernous segment of the ICA occurred during the follow-up, in combination with a regression of the meningioma volume. The patient sustained no neurological deficit. We found that a hot spot of dose was administered to the intracavernous segment of the internal carotid artery, with a maximum dose of 22.3 Gy. Dose heterogeneity inside the target volume can produce hot spots of dose inside the internal carotid artery that can lead to a vascular occlusion. Therefore, we recommend shifting the hot spot during the dosimetry planning in order to reduce the incidence of such vascular injury.
Keywords
Adult, Carotid Artery, Internal/pathology, Carotid Artery, Internal/radiation effects, Carotid Stenosis/etiology, Carotid Stenosis/pathology, Cavernous Sinus/surgery, Female, Humans, Magnetic Resonance Imaging, Meningioma/surgery, Radiation Injuries/pathology, Radiometry, Radiosurgery/adverse effects
Pubmed
Web of science
Create date
20/01/2008 18:35
Last modification date
20/08/2019 15:18