Preliminary analysis of diagnostic efficiency of vascular morphology distribution in breast tumor by superb microvascular imaging

Abstract

Objective To compare the differences of superb microvascular imaging (SMI) and color Doppler flow imaging (CDFI) in the diagnosis of breast tumor microvessels and explore the value of microvascular morphological features in the detection of benign and malignant tumors. Methods SMI and CDFI were performed in 105 patients (105 breast tumors) in the breast surgery in our hospital. The morphological characteristics of the microvessels of the breast tumor were observed. Their values in the diagnosis of the benign and malignant of the tumor were compared with the pathological results. Results There were statistically differences in differentiation of microvascular morphologic types of benign and malignant breast tumors between SMI and CDFI (P=0.021, 0.042). The type of diagnosing benign tumors was no blood vessel, linear and treelike. The type of diagnosing malignant tumors was root hair-like and crab claw-like. The susceptibility, specificity and accuracy of SMI and CDFI in diagnosing breast tumors were 85.36%, 93.75%, 90.47% and 63.41%, 90.47%, 81.90%. The area of the two ROC curves were 0.896 and 0.786. The results of the Z test show that the diagnostic efficacies of the two methods were statistically significant(Z=2.265, P=0.037). Conclusions SMI is more effective than CDFI in detecting low velocity microvessels in breast tumors. Its morphological typing is of clinical significance in the diagnosis of benign and malignant tumors. Key words: Superb microvascular imaging; Color Doppler flow imaging; Breast neoplasms; Microvessels