Journal of Ultrasound in Medicine, Vol 1, Issue 3 105-110, Copyright © 1982 by American Institute of Ultrasound in Medicine
Labeling of meridional and radial scans of the breast
G. Baum
Ultrasound Laboratory, Albert Einstein College of Medicine, Bronx, NY.
Meridional and radial scanning of the breast follows the anatomic planes of
the breast. The scans at the 90 degrees and 180 degrees axes correspond to
the lateral and cephalocaudal x-ray mammograms, respectively. Meridional
scanning introduces unique problems of orientation and labeling. The
labeling methods suggested in this paper result in comparable portions of
each breast lying along identical planes of scan. An equation and a table
that define the minimal angular increment required to detect a 0.5-cm
lesion at the periphery of the breast are presented. Forms for converting
meridional scans to orthogonal localization are also presented. In our
hands, this method of labeling has proved to be simpler than that suggested
by the American Institute of Ultrasound in Medicine.
