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Comparison of the diagnosis of intervertebral disc herniation in dogs by CT before and after contrast enhancement of the subarachnoid space
  1. J. Shimizu, DVM1,
  2. K. Yamada, DVM, PhD1,
  3. K. Mochida1,
  4. T. Kato2,
  5. N. Muroya, DVM3,
  6. Y. Teratani, DVM4,
  7. M. Kishimoto, DVM, PhD1,
  8. K. Lee, DVM1,
  9. T. Iwasaki, DVM, PhD5 and
  10. Y. Miyake, DVM, PhD1
  1. 1 Department of Clinical Veterinary Science, Obihiro University of Agriculture and Veterinary Medicine, Obihiro, Hokkaido 080-8555, Japan
  2. 2 Kako Pet Hospital, Obihiro, Hokkaido 080-0804, Japan
  3. 3 Muroya Animal Hospital, Otofuke, Hokkaido 080-0111, Japan
  4. 4 Uni Animal Hospital, Obihiro, Hokkaido 080-0054, Japan
  5. 5 Department of Veterinary Internal Medicine, Tokyo University of Agriculture and Technology, Fucyu, Tokyo 183-8509, Japan

Abstract

Eleven miniature dachshunds with a herniated intervertebral disc were examined by CT, first before and then after contrast enhancement of the subarachnoid space. The images were classified into three grades by three veterinarians. In four cases, lesions observed on the scans obtained after contrast enhancement had not been observed on the preliminary scans and in one case a lesion observed on the preliminary scan was not observed on the scan obtained after contrast enhancement. Hemilaminectomies were performed on the basis of the enhanced CT results, and a clinical improvement was observed in each of the dogs. Calcification was detected in all the samples of herniated intervertebral disc material.

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