Jones J C, Shires P K, Inzana K D, Sponenberg D P, Massicotte C, Renberg W, Giroux A
Department of Small Animal Clinical Sciences, Virginia-Maryland Regional College of Veterinary Medicine, Virginia Polytechnic Institute, Blacksburg 24061-0442, USA.
Vet Radiol Ultrasound. 1999 Mar-Apr;40(2):108-14. doi: 10.1111/j.1740-8261.1999.tb01892.x.
The objective of this study was to evaluate intravenous contrast-enhanced computed tomography as a technique for predicting the within-level location(s) of compressive soft tissues in the canine lumbosacral spine. Pre-operative intravenous contrast-enhanced computed tomography of the L5-S3 vertebral levels was performed in 12 consecutive large breed dogs with lumbosacral stenosis. The images were evaluated for enhancement of soft tissues by two radiologists who were unaware of the surgical findings. For each within-level location (dorsal canal, ventral canal, right lateral recess, left lateral recess) enhancement was classified as present, absent or equivocal. The results were compared with the results of surgical exploration and histopathology of excised tissues. The positive predictive values of intravenous contrast-enhanced computed tomography for compressive soft tissues involving the dorsal canal, ventral canal and lateral recesses were 83%, 100%, and 81% respectively. Negative predictive values for compressive soft tissues involving these locations were 29%, 50%, and 40% respectively.
本研究的目的是评估静脉内对比增强计算机断层扫描作为一种预测犬腰骶部脊柱受压软组织节段内位置的技术。对12只连续的患有腰骶部狭窄的大型犬进行L5-S3椎体节段的术前静脉内对比增强计算机断层扫描。由两名不知道手术结果的放射科医生评估图像中软组织的强化情况。对于每个节段内位置（背侧椎管、腹侧椎管、右侧侧隐窝、左侧侧隐窝），强化被分类为存在、不存在或不明确。将结果与手术探查结果及切除组织的组织病理学结果进行比较。静脉内对比增强计算机断层扫描对涉及背侧椎管、腹侧椎管和侧隐窝的受压软组织的阳性预测值分别为83%、100%和81%。对涉及这些位置的受压软组织的阴性预测值分别为29%、50%和40%。
