Stone CT C-

RENAL STONE CT C-

(last updated 09/15/2025, last reviewed 09/15/2025)

INDICATION: Flank pain, r/o stone, hematuria, Renal colic, Urolithiasis

SERIES

TECHNICAL PARAMETERS

POSITIONING/MODE: prone/ axial

kV/mA/rotation time: per scanner protocol, CareDose/iDose/ASIR, Care kV; <1 sec

PITCH: </=1.5

SINGLE COLLIMATION WIDTH: 0.625 mm

SLICE THICKNESS: 3 mm

KERNAL: std soft tissue

SFOV: large

COVERAGE: diaphragm -> pubic symphysis / ischial tuberosities

ACQUISITION: craniocaudal

IV CONTRAST: no

ORAL CONTRAST: no

POSTPROCESSING: 3 mm coronal, 3 mm sagittal

NOTES: Scan the patient in the prone position when possible to differentiate dependent bladder calculi from impacted UVJ calculi

***For pediatric patients (<18 yo) follow ALARA principle and use pediatric specific technical parameters per respective CT scanner***