TITLE

Utilização do índice de resistência vascular na diferenciação entre nódulos mamários benignos e malignos

AUTHOR(S)
Schmillevitch, Joel; Guimarães Filho, Hélio Antonio; De Nicola, Harley; Gorski, Ana Cheila
PUB. DATE
July 2009
SOURCE
Radiologia Brasileira;jul/aug2009, Vol. 42 Issue 4, p241
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
The present study was aimed at evaluating the role played by spectral Doppler as a method to measure the vascular resistance index in the differentiation between benign and malignant breast lesions. MATERIALS AND METHODS: Nineteen malignant and 18 benign lesions histologically diagnosed had their vascularization previously analyzed through the resistance index. RESULTS: A statistically significant difference (p < 0.001) was observed between the mean values of resistance index for benign and malignant lesions (respectively 0.62×0.80) in nodular breast lesions greater than 1 cm. A resistance index ⩾ 0.69 was highly associated with malignant lesions, with 84.2% sensitivity, 88.9% specificity, false-positive rate of 11.1%, and false-negative rate of 15.8%. CONCLUSION: The analysis of vascular resistance index combined with findings on grayscale sonographic images can be of great assistance in the assessment of nodular breast lesions greater than 1 cm, with high sensitivity and specificity.
ACCESSION #
44451580

 

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