[Retrospective analysis of failures in radiosurgery treatment of cerebral arteriovenous malformations].
The aim of this paper is to analyze retrospectively the reasons for the failure in cerebral arteriovenous malformations radiosurgery. Several factors are evoked and discussed mainly: inaccurate target, intentional partial irradiation, repermeabilization of a previously embolized cerebral arteriovenous malformation. The results suggest the necessity of a complete irradiation of the nidus. The strategy of partial volume irradiation should be avoided, even if it necessitates lowering of the doses in large cerebral arteriovenous malformations. Accuracy in the target determination is required and a complete stereoangiography is necessary.
Gallina
P
P
Service de Neurochirurgie, Centre Hospitalier Sainte-Anne, 1, rue Cabanis, 75014 Paris.
Nataf
F
F
Merienne
L
L
Schlienger
M
M
Lefkopoulos
D
D
Roux
F X
FX
D000293:Adolescent; D000328:Adult; D000368:Aged; D002533:Cerebral Angiography / Q000379:methods; D002648:Child; D003131:Combined Modality Therapy; D004307:Dose-Response Relationship, Radiation; D004621:Embolization, Therapeutic; D005260:Female; D006801:Humans; D002538:Intracranial Arteriovenous Malformations / Q000000981:diagnostic imaging / Q000453:epidemiology / Q000473:pathology / Q000601:surgery* / Q000628:therapy; D008279:Magnetic Resonance Imaging; D008297:Male; D008875:Middle Aged; D010297:Paris / Q000453:epidemiology; D016634:Radiosurgery / Q000009:adverse effects; D011879:Radiotherapy Dosage; D012008:Recurrence; D012189:Retrospective Studies; D013238:Stereotaxic Techniques; D017211:Treatment Failure