Clinical application of 16-row multislice computed tomographic angiography in the preoperative and postoperative evaluation of intracranial aneurysms for surgical clipping.
BACKGROUND
Sixteen-row multislice CTA has great potential for use in the studies of intracranial aneurysms. The aim of the study was to assess the clinical application of 16-row multislice CTA in the preoperative and postoperative evaluation of intracranial aneurysms for surgical clipping.


METHODS
A total of 42 patients (45 aneurysms) underwent surgery using titanium clips. The CTA was performed with a 16-row multislice CT machine; detector slice, 0.75 mm; reconstruction interval, 0.40 mm; and timing determined by bolus trigger. The neuroradiologist independently evaluated the shape, size, and location of aneurysms; the relationship to other structures; and the presence of neck remnants and patency of the parent artery after clipping on MIP images, VR imaging, and thin-slab MIP and VR images.


RESULTS
Sixteen-slice CTA clearly provided the shape and location of aneurysms, the size of the sac and the neck, and the relationship of aneurysms to bone structures and adjacent branch vessels; and this information would help the neurosurgeons find aneurysms and clip them successfully. Three clipped aneurysms with neck remnants were identified by the 16-slice CTA, and the parent artery could be reliably evaluated close to the clip.


CONCLUSIONS
Sixteen-slice CTA is a useful reference for patients undergoing surgical clipping of aneurysms and can provide much effective information to clipped aneurysms.
Chen
Wenhua
W
Department of Radiology The Third Affiliated Hospital of Suzhou University, Changzhou 213003, PR China.
Yang
Yilin
Y
Qiu
Jianguo
J
Peng
Ya
Y
Xing
Wei
W
D000328:Adult; D000368:Aged; D002533:Cerebral Angiography / Q000379:methods*; D002536:Cerebral Arteries / Q000000981:diagnostic imaging / Q000473:pathology / Q000601:surgery; D005260:Female; D006801:Humans; D007091:Image Processing, Computer-Assisted / Q000379:methods; D002532:Intracranial Aneurysm / Q000000981:diagnostic imaging* / Q000473:pathology* / Q000601:surgery; D008297:Male; D008875:Middle Aged; D038361:Neuronavigation / Q000379:methods; D011182:Postoperative Care / Q000379:methods*; D011183:Postoperative Complications / Q000000981:diagnostic imaging / Q000473:pathology / Q000517:prevention & control; D011300:Preoperative Care / Q000379:methods*; D012886:Skull / Q000033:anatomy & histology / Q000000981:diagnostic imaging; D013525:Surgical Instruments / Q000592:standards; D014057:Tomography, X-Ray Computed / Q000379:methods*; D014656:Vascular Surgical Procedures / Q000295:instrumentation / Q000379:methods