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Vet Comp Orthop Traumatol ; 37(3): 145-150, 2024 May.
Artigo em Inglês | MEDLINE | ID: mdl-38290532

RESUMO

OBJECTIVE: The aim of this study was to provide normative ultrashort echo time magnetic resonance imaging (UTE MRI) data of the patellar ligament (PL), cranial cruciate ligament (CrCL) and caudal cruciate ligament (CdCL) in non-lame Beagles. STUDY DESIGN: Eight stifles from four subjects obtained immediately postmortem were imaged using UTE MRI in the true sagittal plane. Regions of interest were drawn manually and the total (T2*), short T2* (T2*S) and long T2* (T2*L) values of the signal decay were calculated to evaluate the bound and free water components of the tendon. The T2*S, T2*L and T2* values were compared between the PL, CrCL and CdCL RESULTS: The mean and standard deviation of T2*S, T2*L and T2* were as follows: 0.54 ± 0.13, 4.65 ± 1.08 and 8.35 ± 0.82 ms for the PL; 0.46 ± 0.14, 5.99 ± 0.52 and 8.88 ± 0.4 ms for the CrCL and 0.41 ± 0.13, 7.06 ± 0.57 and 9.26 ± 0.18 ms for the CdCL. Significant differences were found between the T2*L component of the PL and each CrCL/CdCL and a smaller difference was noted between the T2*L of the CrCL and CdCL (p = 0.05). No difference of the T2*S value was found between any of the ligaments. CONCLUSION: Establishing normative UTE data of the canine stifle is valuable for comparison in future studies in which normal and damaged ligaments may be evaluated, particularly in those affected limbs in which no instability is identified on physical examination in which normal and damaged ligaments may be evaluated.


Assuntos
Ligamento Cruzado Anterior , Imageamento por Ressonância Magnética , Animais , Cães/anatomia & histologia , Imageamento por Ressonância Magnética/veterinária , Imageamento por Ressonância Magnética/métodos , Ligamento Cruzado Anterior/diagnóstico por imagem , Ligamento Cruzado Anterior/anatomia & histologia , Masculino , Feminino , Joelho de Quadrúpedes/diagnóstico por imagem , Joelho de Quadrúpedes/anatomia & histologia , Ligamento Patelar/diagnóstico por imagem , Ligamento Patelar/anatomia & histologia , Valores de Referência
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