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Is survey radiography sufficient to localize cervical disk protrusion?
Myelography is thought to be mandatory to localize the exact site and extense of disk problems in dogs. But is it always necessary or can an experienced radiologist localize those problems only with survey radiography? This study on 64 dogs answers the question: myelography is still recommended.

Sixty-four dogs with histories and clinical signs consistent with cervical intervertebral disk disease were presented for evaluation.

Survey spinal radiographs were obtained, followed by myelography.

In 61% of the survey radiographs, evaluators identified sites of disk extrusion or protrusion based on radiographic findings. Of those radiographs where a site was identified, ability to accurately identify the correct site of disk extrusion ranged from 53% to 67%, with an average of 58%.

Therefore, the overall accuracy rate for correct identification of the site(s) of disk extrusion for all survey radiographs was 35%.

Twelve cases had more than one site of disk extrusion or protrusion evident myelographically.

In cases where multiple sites of extrusion were confirmed myelographically, the ability to localize at least one of the sites on the corresponding survey radiographs ranged from 63% to 80%, with an average of 70%.

The major site of disk extrusion or protrusion was incorrectly identified in 16% to 31% of the survey radiographs, with an average of 26%.

The use of survey radiographs alone is an inaccurate means for localization of cervical intervertebral disk extrusion or protrusion.

Source: ME Somerville, SM Anderson, PJ Gill, BJ Kantrowitz, and JL Stowater (2001): Accuracy of localization of cervical intervertebral disk extrusion or protrusion using survey radiography in dogs. In: Journal of the American Animal Hospital Association, Vol 37, Issue 6, 563-572



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SMALL ANIMAL PRACTICE

Patient-specific facemask to facilitate brain biopsymembers
The objective of this pilot study was to describe the application and first preliminary data of a novel MRI and CT compatible patient-specific facemask for stereotactic brain biopsy of intracranial lesions in dogs. Five client-owned dogs presenting for neurological deficits consistent with forebrain disease were included in the study. All dogs had MRI findings consistent with an intracranial lesion. But biopsies in this region are not easy to obtain. Does an individual face mask help?

  • Critically ill dogs and their immune function
  • RET-He to diagnose iron-deficient erythropoiesis in dogsmembers
  • Hypertriglyceridemia-Associated Proteinuria in Miniature Schnauzersmembers
  • Gastrointestinal dysmotility disorders in critically ill animalsmembers
  • Disorder of sex development in a cat with chromosome mosaicism members
  • Generalized discoid lupus erythematosus in dogs members
  • Epidermolysis bullosa acquisita in dogsmembers
  • Chiari-Like Malformation and Syringomyelia in American Brussels Griffon Dogsmembers
  • Efficacy and Potential Complications of Transjugular Liver Biopsymembers
  • Hypomagnesemia in Brachycephalic Dogsmembers
  • Comparison of two minimally invasive techniques for liver biopsy members
  • Topical aqueous sirolimus and the tear production members


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