The patient lies supine on the table midline aligned to the midline of the table. The vertical central ray is centered in the midline at the level of L3 at the lower costal margin, It may be necessary to alter the centering position to ensure the upper margin of the renal outlines are visible and the symphysis pubis. Exposure is made on suspended expiration. The vertical central ray is centered in the midline at the level of the midpoint of the upper and lower borders of the renal outlines. Exposure is made on suspended expiration.
Exposure is made on suspended expiration.
Supplementary films to determine position of any opacities. Inspiration film of renal areas for suspected calculi. 35 posterior oblique of the renal areas. Tomogram of the renal areas at 8-11cm. Films are then taken at intervals to demonstrate the whole of the renal tract.