The Analysis on the Reliability of MRI Malignant Signs of Soft Tissue Masses in Extremities / 实用放射学杂志

ABSTRACT

Objective To analyze the reliability of MRI malignant signs of soft tissue masses in extremities.Methods MRI features of soft tissue masses were analyzed retrospectively with emphasis on 30 cases with malignant MRI signs based on pathologic results,and these 30 cases were divided into two groups(benign lesions and malignant tumor group).The reliability of malignant signs for malignant tumor was evaluated.Results(1)The qualitative diagnostic accurate rate for benign and malignant masses was 89.7% and the histopathologic qualitative diagnostic accurate rate was 66.2% by MRI;(2)The findings of invasion and edema around the masses in diagnosis of malignant tumors had a remarkable statistical significance among five malignant signs(P0.05);(3)The sign of indefinite sturcture of muscular fibrosis had statistical significance between benign and malignant tumor diagnosis(P