Bend her slightly backward and place the complete breast on the
Position the tube so that the CR is directed to the midpoint of the base of
b. Mediolateral. Figure 4-4 illustrates the mediolateral projection. The
procedures are as follow.
Figure 4-4. The mediolateral projection, position and mammogram.
(1) Unless there is a special apparatus for mammography procedures, the
mediolateral is best taken with the patient on the radiographic table top, lying on the
side (laterally recumbent).
(2) Place a pillow or cushion beneath her head and shoulders. A
positioning block (square or triangular, whichever is better) is placed beneath the
cassette. This puts the breast in a true lateral position.
(3) Have the patient hold the opposite breast close to her chest so that it will
not be superimposed over the breast being x-rayed. The hand on the projection side
should be placed beneath her head.
(4) The film is placed in a position to completely cover the breast. Two
projections may be taken on one film if the breast size will permit.
The CR is directed to the midpoint of the base of the breast.