Funding sources: Funded by the Department of Veterinary Large Animal Clinical Sciences, Texas A&M University.
EVALUATION OF THE WARP-TURBO SPIN ECHO SEQUENCE FOR 3 TESLA MAGNETIC RESONANCE IMAGING OF STIFLE JOINTS IN DOGS WITH STAINLESS STEEL TIBIAL PLATEAU LEVELING OSTEOTOMY IMPLANTS
Article first published online: 20 JAN 2014
© 2014 American College of Veterinary Radiology
Veterinary Radiology & Ultrasound
Volume 55, Issue 4, pages 414–419, July/August 2014
How to Cite
Simpler, R. E., Kerwin, S. C., Eichelberger, B. M., Wall, C. R., Thompson, J. A., Padua, A., Purdy, D. and Griffin, J. F. (2014), EVALUATION OF THE WARP-TURBO SPIN ECHO SEQUENCE FOR 3 TESLA MAGNETIC RESONANCE IMAGING OF STIFLE JOINTS IN DOGS WITH STAINLESS STEEL TIBIAL PLATEAU LEVELING OSTEOTOMY IMPLANTS. Veterinary Radiology & Ultrasound, 55: 414–419. doi: 10.1111/vru.12141
Previous presentations or abstracts: Presented at the 2013 ACVR Annual Scientific Meeting.
- Issue published online: 16 JUL 2014
- Article first published online: 20 JAN 2014
- Manuscript Accepted: 1 NOV 2013
- Manuscript Received: 6 AUG 2013
- Department of Veterinary Large Animal Clinical Sciences, Texas A&M University
Susceptibility artifacts caused by ferromagnetic implants compromise magnetic resonance imaging (MRI) of the canine stifle after tibial plateau leveling osteotomy (TPLO) procedures. The WARP-turbo spin echo sequence is being developed to mitigate artifacts and utilizes slice encoding for metal artifact reduction. The aim of the current study was to evaluate the WARP-turbo spin echo sequence for imaging post TPLO canine stifle joints. Proton density weighted images of 19 canine cadaver limbs were made post TPLO using a 3 Tesla MRI scanner. Susceptibility artifact sizes were recorded and compared for WARP vs. conventional turbo spin echo sequences. Three evaluators graded depiction quality for the tibial tuberosity, medial and lateral menisci, tibial osteotomy, and caudal cruciate ligament as sufficient or insufficient to make a diagnosis. Artifacts were subjectively smaller and local structures were better depicted in WARP-turbo spin echo images. Signal void area was also reduced by 75% (sagittal) and 49% (dorsal) in WARP vs. conventional turbo spin echo images. Evaluators were significantly more likely to grade local anatomy depiction as adequate for making a diagnosis in WARP-turbo spin echo images in the sagittal but not dorsal plane. The proportion of image sets with anatomic structure depiction graded adequate to make a diagnosis ranged from 28 to 68% in sagittal WARP-turbo spin echo images compared to 0–19% in turbo spin echo images. Findings indicated that the WARP-turbo spin echo sequence reduces the severity of susceptibility artifacts in canine stifle joints post TPLO. However, variable depiction of local anatomy warrants further refinement of the technique.