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AGREEMENT BETWEEN T 2 AND HASTE SEQUENCES IN THE EVALUATION OF THORACOLUMBAR INTERVERTEBRAL DISC DISEASE IN DOGS
Author(s) -
Mankin Joseph M.,
Hecht Silke,
Thomas William B.
Publication year - 2011
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.1740-8261.2011.01894.x
Subject(s) - medicine , lesion , spinal cord , intervertebral disc , nuclear medicine , radiology , surgery , psychiatry
The purpose of this study was to compare half‐Fourier‐acquisition single‐shot turbo spin‐echo ( HASTE ) and T 2‐weighted ( T 2‐W) sequences in dogs with thoracolumbar disc extrusion. MRI studies in 60 dogs (767 individual intervertebral disc spaces) were evaluated. Agreement between T 2‐W and HASTE sequences was assessed for two criteria: presence of an extradural lesion and treatment recommendation. There was moderate agreement between T 2‐W and HASTE sequences as to presence of an extradural lesion ( κ = 0.575). HASTE was in agreement in 96.1% of the sites where no extradural lesion was identified on T 2‐W images, but only in 58.1% of the sites where extradural lesions were identified on T 2‐W images. There was also moderate agreement between T 2‐W and HASTE sequences as to treatment recommendations ( κ = 0.476). HASTE was in agreement in 98.4% of the sites where a lesion was considered nonsurgical on T 2 but only 82.1% of sites a lesion was considered surgical on T 2. In 1.0% of sites considered not surgical and in 9.8% of sites considered equivocal based on T 2‐W images, a surgical lesion was identified on HASTE . Acquisition of a HASTE sequence in addition to conventional sequences may be beneficial in determining the severity of spinal cord compression in some cases when evaluating the canine spine.