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ULTRASONOGRAPHIC APPEARANCE OF THE CRANIOCERVICAL JUNCTION IN NORMAL BRACHYCEPHALIC DOGS AND DOGS WITH CAUDAL OCCIPITAL (CHIARI‐LIKE) MALFORMATION
Author(s) -
SCHMIDT MARTIN J.,
WIGGER ANTJE,
JAWINSKI SEBASTIAN,
GOLLA TANJA,
KRAMER MARTIN
Publication year - 2008
Publication title -
veterinary radiology and ultrasound
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.541
H-Index - 60
eISSN - 1740-8261
pISSN - 1058-8183
DOI - 10.1111/j.1740-8261.2008.00411.x
Subject(s) - medicine , foramen magnum , occipital bone , anatomy , chiari malformation , syringomyelia , magnetic resonance imaging , foramen , spinal cord , skull , radiology , psychiatry
Ultrasonographic evaluation of the spine, especially of the spinal cord, has been rarely reported in dogs. The atlanto‐occipital junction provides a small acoustic window through which examination of the craniocervical transition can be performed. Normal sonographic findings of this region in 10 normal brachycephalic dogs are presented and compared with sonographic findings from 25 Cavalier King Charles Spaniels with the caudal occipital malformation syndrome. Sonographic findings were compared with magnetic resonance imaging findings to determine the extent of cerebellar herniation and syringohydromyelia. Cerebellar displacement into the foramen magnum was clearly identified sonographically; however, syringohydromyelia was not discernable due to bone overlay.