[Digital 3D rotational angiography for the preoperative and preinterventional clarification of cerebral arterial aneurysms].
OBJECTIVE
Does the recently introduced 3D angiography provide additional information beyond standard angiography (DSA) for the diagnosis of cerebral aneurysms?


METHODS
During a 3-months period DSA and 3D-angiography were performed in 40 patients harbouring a total of 49 aneurysms. Vascular regions that presented an aneurysm diagnosed by DSA were reevaluated by 3D-angiography.


RESULTS
In two patients, vessel-loops previously described as aneurysms by DSA could be identified by 3D-angiography. In one patient, an aneurysm was diagnosed that could not be detected by DSA. In another case, the definitive diagnosis of an aneurysm was obtained only with 3D-angiography. In one patient, an aneurysm was diagnosed that could not be detected by DSA. In another case, the diagnosis of an aneurysm was obtained only with 3D-angiography. In two cases, aneurysms could be definitively excluded by 3D-angiography, whereas in another aneurysm a vessel originating from this lesion was identified. The size of the aneurysms measured by both methods was identical.


CONCLUSIONS
Multiple projections of 3D-angiography provide a better evaluation of the anatomic situation regarding the base of the aneurysm as well as the relationship of an aneurysm to neighbouring vessels. Further, an exact differentiation between a vessel loop and an aneurysm can be made. Therefore, 3D-angiography is a valuable tool when used in conjunction with DSA.
Unger
B
B
Radiologische Abteilung, Landesnervenklinik Linz, Osterreich.
Link
J
J
Trenkler
J
J
Böhm-Jurkovic
H
H
D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D015901:Angiography, Digital Subtraction / Q000295:instrumentation / Q000379:methods; D000818:Animals; D002533:Cerebral Angiography / Q000295:instrumentation / Q000379:methods*; D002536:Cerebral Arteries / Q000000981:diagnostic imaging*; D003287:Contrast Media; D005260:Female; D006168:Guinea Pigs; D006801:Humans; D002532:Intracranial Aneurysm / Q000150:complications / Q000000981:diagnostic imaging*; D008297:Male; D008875:Middle Aged; D011300:Preoperative Care / Q000379:methods*; D011446:Prospective Studies; D011829:Radiation Dosage; D013345:Subarachnoid Hemorrhage / Q000000981:diagnostic imaging / Q000209:etiology
D003287:Contrast Media
Digitale 3D-Rotationsangiographie zur präoperativen und präinterventionellen Abklärung von Hirnarterienaneurysmen.