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Significance of resistive index in color doppler ultrasonogram: Differentiation between benign and malignant breast masses

Title
Significance of resistive index in color doppler ultrasonogram: Differentiation between benign and malignant breast masses
Authors
Choi H.-Y.Kim H.Y.Baek S.Y.Kang B.C.Lee S.W.
Ewha Authors
백승연이선화강병철
SCOPUS Author ID
백승연scopus; 이선화scopus; 강병철scopus
Issue Date
1999
Journal Title
Clinical Imaging
ISSN
0899-7071JCR Link
Citation
vol. 23, no. 5, pp. 284 - 288
Indexed
SCIE; SCOPUS WOS scopus
Abstract
The objective of this article is to evaluate the significance of resistive index in differentiation between benign and malignant breast lesions on duplex ultrasonographic examination. Resistive indices obtained in 106 breast lesions of 104 patients were included. Sixty-four were benign (mean age: 32.4 ± 11.1 years), and 42 were malignant lesions (mean age: 47.8 ± 11.4 years). The resistive index was classified as follows: below 0.49, from 0.5 to 0.59, 0.6 to 0.69, 0.7 to 0.79, and above 0.8. We analyzed and defined the optimal threshold value of RI between benign and malignant lesions. The mean values of the RI of benign and malignant lesions were 0.62 ± 0.095 (range 0.44-0.86) and 0.74 ± 0.097 (range, 0.50-0.92), respectively. The resistive index exceeded 0.7 in 80% of malignant lesions. The difference of the RI between malignant and benign lesions was statistically significant when the threshold value was 0.7 (P < 0.001). A resistive index over 0.7 may suggest malignant lesions. Due to the considerable overlap of the range of the RI, it may not be diagnostic in any single patient; however, it may be helpful in conjunct with gray-scale image. Copyright (C) 2000 Elsevier Science Inc.
DOI
10.1016/S0899-7071(99)00152-7
Appears in Collections:
의학전문대학원 > 의학과 > Journal papers
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