Quantitative Magnetic Resonance Imaging and Histological Comparison of Normal Canine Menisci

• DOI: 10.1055/s-0038-1668115
• Publication Date: 2018-10-22T23:07:13Z
• Authors: Kei Hayashi; Brian Caserto; Ryan Breighner; Mary Norman; Hollis Potter; Matthew Koff; Sarah Pownder
• Keywords: Medial meniscus; Meniscus; Beagle; Lateral meniscus

The purpose of this observational study was to establish normative data for the canine menisci using magnetic resonance imaging (MRI). Ten fresh stifles from five normal male Beagles were obtained animals with no known lameness. Conventional MRI and ultrashort echo time (UTE) performed T2* values calculated. Five assessed histologically. caudal horn medial meniscus had significantly prolonged (4.6 ± 1.27 ms; p = 0.002) as compared cranial (3.25 0.86 ms), (3.06 0.54 ms) (3.64 0.72 horns lateral meniscus. Histology demonstrated tibial, femoral, interior peripheral meniscal margins, cellularity. noted be obliquely oriented scan plane relatively perpendicular orientation bore magnet in a limb-extended orientation. Variability UTE is seen meniscus, prolongation horn, Prolongation may due magic angle effects, Beagle not axis main field. Canine injury common sequela cruciate tear, detecting damage important directing patient care. non-invasive quantitative technique can used evaluation collagen orientation, while acknowledging inherent regions prolongation.