Features of Whole-body Bone Scan and Local SPECT/CT Tomography of Insufficiency Fracture / 中国医学影像学杂志

ABSTRACT

Purpose The clinical manifestation of insufficiency fracture (IF) is in lack of specificity,thus it is prone to misdiagnosis.This paper aims explore imaging characteristics of 99Tcm-MDP whole-body bone scan and local SPECT/CT tomography for IF in the anticipation to improve its cognition and diagnosis capability to imaging manifestations.Materials and Methods Thirty patients who were diagnosed as IF by follow-up or imaging in Affiliated Hospital of Southwest Medical University from September 2015 to September 2016 were enrolled.The imaging features of their whole-body bone scan and local S PECT/CT tomography were retrospectively analyzed.Results For 30 patients,20 cases were single bone lesion,and 10 cases were multiple bone lesions.Lesions on the whole-body scan were represented as developer concentration of different level.Fracture line,sclerosis rim/line,soft tissue swelling,wedge-shaped or concave deformity of the vertebra could be observed on the images of SPECT/CT scan.Osteoporosis of different level could be seen on all the 30 patients.No bone destruction could be seen on the lesions and no obvious soft tissue mass around the lesions were formed.Conclusion Manifestation of whole-body bone scan and local SPECT/CT scan of IF is with certain specificity and is of significance in the early-stage diagnosis and differential diagnosis of IF.