Evaluation of Skeletal Muscle Perfusion in a Canine Hind Limb Ischemia Model Using CT Perfusion Imaging

Özet

PURPOSEWe aimed to evaluate skeletal muscle perfusion in a canine hind limb ischemia model using computed tomography (CT) perfusion imaging.METHODSTwelve beagles underwent embolization at the branch of the left deep femoral artery. The right hind limbs were used as controls. CT perfusion imaging was performed immediately after embolization. The perfusion parameters of the regions of interest (ROI), including blood volume (BV), blood flow (BF), mean transit time (MTT) and permeability (PMB), were obtained in both the lateral and posterior hind limb muscle groups.RESULTSAfter embolization, the BV, BF, and PMB values in the lateral muscles of the left hind limbs were significantly lower than those in the right hind limbs (P > 0.05), and the MTT was significantly prolonged (P > 0.05). The values for BV, BF, MTT, and PMB in the posterior muscles of the left hind limbs were not significantly different from those in the right hind limbs (P > 0.05). The values for BV, BF, and PMB in the lateral muscles of the left hind limbs were significantly lower than those in the posterior muscles of the left hind limbs (P > 0.05).CONCLUSIONCT perfusion imaging could be used to evaluate skeletal muscle perfusion in a canine model, which may have clinical relevance in lower limb ischemia and vascular reconstruction.