par Levi, Salvator 
Référence Revue Francaise de Gynecologie et d'Obstetrique, 78, 7-9, page (499-506)
Publication Publié, 1983
Référence Revue Francaise de Gynecologie et d'Obstetrique, 78, 7-9, page (499-506)
Publication Publié, 1983
Article révisé par les pairs
| Résumé : | Mammary supersonography is one of the most difficult applications of ultrasounds. Testing first began in 1951. The author discusses the physical elements of the behaviour of sounds in the mammary gland. For example, the wave propagation velocity, determined by the medium density, increases with the tenseness and decreases with the density. In addition, the fasciculus slope on the interface influences the amplitude of the deeper echos. A review of the physical concepts is necessary in order to understand the images and evaluate the respective merits of the different methods applied to mammary examination by ultrasounds: direct contact, immersed transducer, transducer and breasts immersed. Possible advantages and disadvantages as well as the Doppler effect applied to mammary examination are also discussed. |
