[3-dimension computed tomography angiography and digital subtraction angiography in diagnosis of intracranial aneurysm: a comparative study].
OBJECTIVE
To compare the appliance values off 3-dimension computed tomography (CTA) and digital subtraction angiography (DSA) in diagnosis of intracranial aneurysm (ICA).


METHODS
Eighty-six with subarachnoid hemorrhage underwent 2-D DSA, and 3-DCTA and 3-D DSA, both including maximum intensity projection (MIP) and multiple planner reconstruction (MPR), volume rending (VR). The accuracy, misdiagnosis rate, and missed diagnosis rate of these 3 techniques were compared. No significant complication was found.


RESULTS
Ninety-four aneurysms were found in 74 patients. CTA examination obtained satisfactory MPR, MIP, and VR images in all patients. There was no significant difference in accuracy between 3D-DSA and 3D-CTA. In display of the aneurysm 3D-CTA was not significantly different from 2D-DSA in most cases. In display of the neck of aneurysm 3D-CTA was not significantly different from 3D-DSA, and these 3 techniques were both superior to 2D-DSA.


CONCLUSIONS
3D-CTA is the first choice examination technique for patients with subarachnoid hemorrhage. The information obtained by 2D-DSA, 3D-DSA, and 3D-CTA should be considered comprehensively.
Yan
Shi-xin
SX
Imaging Department of Huanhu Hospital, Tianjin 300060, China.
Yang
Tian-hao
TH
Fan
Yi-Mu
YM
Tiao
Chao
C
Jin
Song
S
Yin
Long
L
D000368:Aged; D000369:Aged, 80 and over; D015901:Angiography, Digital Subtraction / Q000379:methods*; D002533:Cerebral Angiography / Q000379:methods*; D005260:Female; D006801:Humans; D021621:Imaging, Three-Dimensional; D002532:Intracranial Aneurysm / Q000175:diagnosis*; D008297:Male; D008875:Middle Aged; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity; D013345:Subarachnoid Hemorrhage / Q000000981:diagnostic imaging*; D036542:Tomography, Spiral Computed