myRadiologist

CT multiphase kidney


Strengths
dedicated study to: 1) assess renal lesion of indeterminate etiology or atypical cyst ; 2) Staging of renal cell CA / involvement of adjacent soft tissue and vascular structures.
Limitations
Use standard CT abdomen study to just screen for kidney involvement, assessment of pyelonephritis and others (less radiation exposure to patient than multiphase and provides evaluation of other abdominal organs too).
Contraindications
1) Allergy to contrast, but we will premedicate patient as necessary; 2) IV contrast will be dose-adjusted dependent upon creatinine clearance.
CPT Code
74170
Exact format for order to be authorized
CT abdomen with and without IV contrast. No oral contrast.
Patient Preparation
NPO 4 hours, but can take meds with small sip of water.