title: [Doppler ultrasound studies of breast tumors with the continuous wave technique].
abstract: The aim of the study was to ascertain the reliability of continuous-wave Doppler signals in the diagnosis of breast cancer. CW-Doppler findings in a series of 63 cases of palpable breast tumors with histologic confirmation (24 malignancies and 39 benign tumors) are reported. Depending on the parameters used -20 -24 of 24 malignant nodes (83%-100%) and 20 -24 of 39 benign lesions (51%-62%) were correctly identified. Even benign tumors showed significant differences in systolic peak and diastolic frequencies compared to the contralateral breast. The Resistance-Index (RI) did not allow the differentiation of lesions when measured on one side only. Comparing the Resistance-Indices of both breasts helped improving the specificity of CW-Doppler-sonography to 89.7% and the positive predictive value to 73.3%. The CW-Doppler-sonography with the relevant parameters of diastolic and systolic peak frequency and the RI is considered a useful tool in the diagnosis of breast cancer.
authors.affiliation: Universitäts-Frauenklinik, Klinikum der RWTH Aachen.
authors.forename: R
authors.initials: R
authors.lastname: Schild
authors.forename: B
authors.initials: B
authors.lastname: Schroers
authors.forename: A
authors.initials: A
authors.lastname: Funk
authors.forename: H
authors.initials: H
authors.lastname: Fendel
authors.forename: K
authors.initials: K
authors.lastname: Buro
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D001783:Blood Flow Velocity / Q000502:physiology; D001940:Breast / Q000098:blood supply; D001941:Breast Diseases / Q000000981:diagnostic imaging; D001943:Breast Neoplasms / Q000098:blood supply / Q000000981:diagnostic imaging*; D002196:Capillaries / Q000000981:diagnostic imaging; D003937:Diagnosis, Differential; D003971:Diastole / Q000502:physiology; D005260:Female; D006801:Humans; D008875:Middle Aged; D009389:Neovascularization, Pathologic / Q000000981:diagnostic imaging; D011673:Pulsatile Flow / Q000502:physiology; D012016:Reference Values; D013599:Systole / Q000502:physiology; D016217:Ultrasonography, Mammary / Q000379:methods*; D014655:Vascular Resistance / Q000502:physiology