Pp. Kenzel et al., IS 13 MHZ HIGH-RESOLUTION ULTRASOUND A VA LUABLE MEANS TO FACILITATE PREOPERATIVE LOCALIZATION AND MARKING OF CLUSTERS OF MICROCALCIFICATIONS, RoFo. Fortschritte auf dem Gebiete der Rontgenstrahlen und der neuenbildgebenden Verfahren, 165(6), 1996, pp. 551-556
Purpose: The value of 13 MHz ultrasound regarding the preoperative loc
alisation in combination with mammography were investigated into. Mate
rial and method: Out of 112 mammographically detected calcifications,
30 (30 patients) were clusters of microcalcifications. Out of these, 2
3 were classified as suspicious of malignancy and were preoperatively
localised with a 7.5 and 13 MHz probe. Upon marking the skin, a fine n
eedle was inserted, and after due correction blue dye or coal solution
was instilled. Results: Following mammographically shown position, 23
clusters of microcalcifications could be localised using the 13 MHz p
robe. A localisation with the 7.5 MHz probe was impossible in all case
s. A single correction of the needle's site was necessary with 35% (8/
23) of patients. The maximum distance of the needle's tip in case of m
isposition measured 11 mm. Conclusion: Giving a known mammographic pos
ition and a sonographic perceptibility of clusters of microcalcificati
ons in a maximal depth of penetration of 2 cm, 13 MHz high resolution
ultrasound examination in combination with mammography prove to be a v
aluable means in facilitating the preoperative localisation.