Page 2285 - Cote clinical veterinary advisor dogs and cats 4th

1134.e4 Myelography

○ Equipment and MRI examination more
costly than myelography or CT scan
○ Currently replacing myelography as a
VetBooks.ir Pearls
procedure standard

In large-breed dogs, the spinal cord ends
more cranially, and injection at L4-L5 may
be necessary.

MYELOGRAPHY Myelogram of cat, lateral projection. Lumbar and caudal thoracic portion. Normal study. SUGGESTED READING
Incidental finding is a small amount of intramuscular and subcutaneous accumulation of contrast material at Newcomb B, et al: Comparison of computed tomog-
site of lumbar injection. raphy and myelography to a reference standard of
computed tomographic myelography for evaluation
of dogs with intervertebral disc disease. Vet Surg
neutrophils, increased protein, false-positive ○ Equipment and CT scan examination 41:207-214, 2012.
Pandy score, and high specific gravity. These more costly than myelography, and CT
effects are transient, and the normal state often requires intrathecal injection of RELATED CLIENT EDUCATION
usually returns in 24-48 hours. contrast before the scan SHEET
• Maintain adequate hydration status: IV fluids ○ Currently replacing myelography as a
± fluid diuresis. procedure standard Consent to Perform General Anesthesia
• MRI (p. 1132)
Alternatives and Their ○ Requires general anesthesia and knowledge AUTHOR: LeeAnn Pack, DVM, DACVR
Relative Merits of cross-sectional anatomy EDITORS: Leah A. Cohn, DVM, PhD, DACVIM; Mark S.
• CT scan ○ Provides axial images without superimposi- Thompson, DVM, DABVP
○ Requires general anesthesia and knowledge tion of other structures; more detailed than
of cross-sectional anatomy standard radiography
○ Provides axial images without superimposi- ○ Sensitive, accurate, noninvasive, and does
tion of other structures, more detailed than not involve the use of ionizing radiation
standard radiography, ability to postprocess

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