[An occlusive evaluation proposal to intra-saccular embolization of intracranial aneurysm].
OBJECTIVE
To explore the imaging criteria for evaluating intracranial aneurysm embolization.


METHODS
Angiographic occlusive criteria for intracranial aneurysm embolization (aneurysm not opcified angiographically after embolization, 100% occlusion; a little part of aneurysm neck residual, 95%; neck residual, 90%; neck and a little part of aneurysm cavity residual, 80%; some cavity residual, < 80%) were used by 6 specialists to evaluate 121 aneurysms embolized with MDS (mechanical detachable spiral) and/or GDC (guglielmi detachable coil) from March 1995 to July 1999. The rationality, feasibility and limitation of the criteria were discussed.


RESULTS
Among the 121 aneurysms, 100% occlusion was reached in 53 aneurysms (43.8%), 95% in 27 (22.3%), 90% in 16 (13.2%), 80% in 15 (12.4%), and less than 80% in 10 (8.3%) respectively. Good accordance was obtained among different doctors in the occlusive evaluation of aneurysm embolization.


CONCLUSIONS
The suggesting criteria are simple and feasible in clinical practice, although the effect of imaging follow-up of embolized aneurysm is unknown and the numerical value of occlusive percentage is arbitrary.
Wang
D
D
Department of Neurosurgery, Beijing Hospital, Beijing 100730, China.
Ling
F
F
Li
M
M
Zhang
H
H
Miu
Z
Z
Zhang
P
P
Song
Q
Q
Hao
M
M
Zhang
Y
Y
D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D015901:Angiography, Digital Subtraction; D002533:Cerebral Angiography; D004621:Embolization, Therapeutic; D005260:Female; D006801:Humans; D002532:Intracranial Aneurysm / Q000000981:diagnostic imaging / Q000628:therapy*; D008297:Male; D008875:Middle Aged; D016896:Treatment Outcome