Can different regions of interest influence the diagnosis of benign and malignant breast lesions using quantitative parameters of contrast-enhanced sonography?

Abstract:

OBJECTIVES:To evaluate the diagnostic utility of quantitative parameters which generated in different regions of interests (ROIs) of benign and malignant breast lesions using contrast-enhanced sonography(CEUS). MATERIALS AND METHODS:130 patients were evaluated with contrast harmonic imaging after the injection of a bolus dose of 4.8 ml SonoVue (Bracco Sp A, Milan, Italy). Quantitative analyses using the TIC were performed in two types of ROI (manually tracing the whole lesions and using 3-mm rectangular sampling frames to depict local lesions).Wash in slope (WIS), rise time (RT), time to peak (TTP),peak intensity (PI),strengthening intensity (SI),wash out slope(WOS) and mean transit time(MTT) were investigated in each ROI, SI includes the strengthening intensity of the lesion itself(SIs) and its strengthening intensity relative to the reference area(SIr). RESULTS:Pathologic analysis showed 52 benign and 78 malignant lesions. There were significant differences in the quantitative parameters obtained by the two ROI types (P < 0.05). There were significant differences between benign and malignant lesions in the WIS-e(P < 0.05), TTP-e(P < 0.05), and SIr-e (P < 0.05) for the manual ROI. Significant differences were found between benign and malignant lesions in the WIS-l(P < 0.05), TTP-l(P < 0.05), PI-l(P < 0.05), SIs-l(P < 0.05), and SIr-l (P < 0.05) for the 3-mm ROI. The regression equation obtained by ROI-e was P = 1/[1 + e-(2.65-0.184TTP-e)]. The regression equation obtained by ROI-l was P = 1/[1 + e-(2.472+0.024SIr-l-0.279TTP-l)]. There was statistically significant difference in the diagnostic efficacy between the two ROI types (P < 0.05). CONCLUSIONS:CEUS quantitative analysis has a certain value in the diagnosis of benign and malignant breast lesions. The ROI type which depicts local lesions can better reflect the hemodynamic characteristics of the lesions.

journal_name

Eur J Radiol

authors

Li J,Guo L,Yin L,Fang H,Ye W,Zhao B,Liu Y,Xu T

doi

10.1016/j.ejrad.2018.09.005

subject

Has Abstract

pub_date

2018-11-01 00:00:00

pages

1-6

eissn

0720-048X

issn

1872-7727

pii

S0720-048X(18)30310-3

journal_volume

108

pub_type

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