RENAL STONE CT C- (last updated 07/28/2015, last reviewed 02/07/2022 )
INDICATION: Flank pain, r/o stone, hematuria, Renal colic, Urolithiasis
SERIES
- 3mm Axial Soft Tissue
- 3mm Coronal Soft Tissue
- 3mm Sagittal Soft Tissue
| | |
|
POSITIONING/MODE
|
prone/helical |
|
kV/mA/rot time
|
per scanner protocol CareDose/iDose/ASIR Care kV 120 to 140 kVp </= 1 sec |
|
SLICE THICKNESS
|
3mm |
|
PITCH
|
1 to 1.5 |
|
KERNAL
|
std |
|
SFOV
|
300 to 350 mm |
|
COVERAGE
|
diaphragm -> pubic syphysis |
|
ACQUISITION
|
craniocaudal |
|
ORAL CONTRAST
|
none |
|
IV CONTRAST
|
none |
|
RESPIRATION
|
Inspiration |
|
POSTPROCESSING
|
3mm Coronal and 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***