[Comparative studies of various echomammography techniques].
Until now it is not clear which echographic scanning technique is most effective and economic for breast examination. To answer this question we examined in a special study 189 patients with the following scanning units: 1. automated immersion scanning technique, 3 MHz (Octoson, Ausonics) 2. manual compound scanning unit (skin contact), 5 MHz (80 LDI, Picker) 3. linear array realtime scanner (skin contact), 5 MHz (SAL 20, Toshiba). Two examiners evaluated the image quality with regard to the visualisation of the histologically confirmed malignant lesions (n = 78). For testing the spatial resolution, we developed a tissue--mimicking phantom including cyst-like structures of different sizes. The clinical and technical advantages and disadvantages respectively of these three methods are discussed.
Teubner
J
J
Institut für Nuklearmedizin, Deutschen Krebsforschungszentrums Heidelberg.
van Kaick
G
G
Pickenhan
L
L
Schmidt
W
W
D001943:Breast Neoplasms / Q000000981:diagnostic imaging*; D003937:Diagnosis, Differential; D004867:Equipment Design; D005260:Female; D005348:Fibrocystic Breast Disease / Q000000981:diagnostic imaging; D006801:Humans; D007091:Image Processing, Computer-Assisted / Q000295:instrumentation; D019047:Phantoms, Imaging; D012680:Sensitivity and Specificity; D014159:Transducers; D016217:Ultrasonography, Mammary / Q000295:instrumentation*