title: [Can breast elastography change our strategies? Technology, impact and limitations].
abstract: Compression or static elastography is based on images deformation (induced by slight manual compression/decompression to the breast) and tissue movement is color-encoded in color map and classified into five scores of increasing malignancy (score of 1 to 3: benign and 4 to 5: malignant). The elasticity shear wave is measured from the propagation velocity of shear waves in the lesions and is expressed in kPa or m/s and in color map. Reproducibility is satisfactory for the two technologies even if the static elastography is only semi-quantitative. Elastography is helpful for lesions classified BI-RADS 3 and 4 and especially when the PPV of these lesions in B mode is low<10% (BI-RADS 3 and 4a). For these two technologies, cancer and biopsy rates are reduced by at least 30% (with threshold values for the shear wave technology of 30kPa and 3m/s depending on the manufacturer). False positives are found with the fibrotic lesions and false negatives by colloid tumors and DCIS. Correlation with prognostic factors is discussed.
authors.affiliation: Centre de sénologie, clinique Santa Maria, 57, avenue de la Californie, 06200 Nice, France. Electronic address: catherine.maestro@live.fr.
authors.forename: C
authors.initials: C
authors.lastname: Balu-Maestro
authors.affiliation: Centre de sénologie, clinique Santa Maria, 57, avenue de la Californie, 06200 Nice, France.
authors.forename: T
authors.initials: T
authors.lastname: Caramella
mesh_terms: D001943:Breast Neoplasms / Q000000981:diagnostic imaging*; D054459:Elasticity Imaging Techniques; D005260:Female; D006801:Humans; D015203:Reproducibility of Results; D016217:Ultrasonography, Mammary
keywords: Breast ultrasound; Elastography; Onde de cisaillement; Shear wave; Échographie mammaire; Élastographie