Medical Necessity: Evaluate for hydronephrosis
Structures studied: Kidneys, including collecting system
Focused Question: Is hydronephrosis present?
1.) Obtain video clip fanning through entire portions of both kidneys in both the longitudinal and transverse planes.
2.) Obtain one static representative image.
If hydronephrosis is present (particularly bilaterally), scan the urinary bladder. If the bladder is distended, have the patient empty the bladder and repeat scan after 15 minutes.
If there is any confusion as to the origin of fluid filled structures seen in the renal pelvis, apply color flow to differentiate vascular spaces from urinary spaces.