Open AccessSupersonic shear waves quantitative elastography and kinetic magnetic resonance dynamic curve in discriminating BI-RADS 4 breast masses: A comparative study
Author(s) -
Ghada A. Elmoneam,
Rania Mostafa Almolla,
Ayman Ahmed,
Mohammad A Al Ekrashy
Publication year - 2016
Publication title -
the egyptian journal of radiology and nuclear medicine /the egyptian journal of radiology and nuclear medicine
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.19
H-Index - 13
eISSN - 2090-4762
pISSN - 0378-603X
DOI - 10.1016/j.ejrnm.2016.08.004
Subject(s) - medicine , elastography , magnetic resonance imaging , bi rads , ultrasound , radiology , magnetic resonance elastography , dynamic contrast enhanced mri , mammography , nuclear medicine , cutoff , breast cancer , physics , cancer , quantum mechanics
PurposeThe purpose of this study was to evaluate the usefulness of shear wave elastography (SWE) versus MRI dynamic curve in discriminating BI-RADS 4 breast masses to detect which modality is more sensitive and specific.Patients and methodsSixty-three patients presented by breast masses and categorized as BI-RADS 4 by mammography and ultrasound over the study period for 1 year were included. We analyzed and compared the quantitative dynamic MRI curve types with E-maximum (E-Max) shear wave (SW) velocity values.ResultsHistopathological evaluation revealed 41.3% of the cases had benign lesions and 58.7% had a malignant lesion. The mean E-max SW value of each pathology and its corresponding dynamic MRI curve were analyzed.At a cutoff value 45.3kPa±41.1 for benign lesions and 146.6kPa±40.05 for malignant lesions, the recorded sensitivity, specificity and accuracy of quantitative SWE in differentiating between the benign and malignant BI-RADS 4 breast lesions were 89.5%, 88%, and 88.9%, respectively and those for DC-MRI curve were 100%, 92.3%, and 96.8%, respectively.ConclusionQuantitative measurements are more vulnerable in detecting and differentiating BI-RADS 4 lesions. Type of the dynamic MRI curve is more sensitive, specific and accurate than SWE