[Spiral CT angiography in demonstration of cerebral aneurysms before and after treatment with titanium clips].
OBJECTIVE
To determine the suitability of spiral CT angiography (SCTA) in patients with intracerebral titanium aneurysm clips.


METHODS
The section parameters were optimised using a phantom. 16 patients were examined preoperatively and 18 following treatment of aneurysms with clips.


RESULTS
The resolution, sensitivity and specificity for demonstrating cerebral aneurysms measuring > or = 3 mm was 91.3% and 75% respectively. In 15 patients with intracerebral clips there were no or only minor artefacts; three examinations were of no value because of major metal artefacts. Amongst six aneurysms demonstrated angiographically, two, which measured more than 3 mm, could be shown by SCTA.


CONCLUSIONS
SCTA was able to demonstrate intracerebral aneurysms measuring > or = 3 mm. Titanium clips did not usually affect image quality significantly.
Becker
C
C
Klinikum Grosshadern, Ludwig-Maximilians-Universität München.
Volkmar
C
C
Weber
J
J
Yousry
T
T
Fink
U
U
Holzknecht
N
N
Steiger
H J
HJ
Reiser
M
M
D000293:Adolescent; D000328:Adult; D000368:Aged; D016477:Artifacts; D002533:Cerebral Angiography / Q000295:instrumentation / Q000379:methods*; D005069:Evaluation Studies as Topic; D006801:Humans; D002532:Intracranial Aneurysm / Q000000981:diagnostic imaging* / Q000601:surgery*; D008875:Middle Aged; D019047:Phantoms, Imaging; D011184:Postoperative Period; D011300:Preoperative Care; D012680:Sensitivity and Specificity; D014025:Titanium; D014057:Tomography, X-Ray Computed / Q000295:instrumentation / Q000379:methods*
D014025:Titanium