RENAL MASS CT C+ (last updated 07/28/2015, last reviewed 02/07/2022)
INDICATION: Renal mass, Renal cyst, Renal cell carcinoma. Oncocytoma, Angiomyolipoma
SERIES
- 3mm Axial (pre, post)
- 3mm Coronal
- 3mm Sagittal
| | PRECONTRAST | NEPHROGRAPHIC PHASE |
|
POSITIONING/MODE
|
supine/helical |
supine/helical |
|
kV/mA/rot time
|
per scanner protocol CareDose/iDose/ASIR Care kV 120 to 140 kVp </= 1 sec |
per scanner protocol CareDose/iDose/ASIR Care kV 120 to 140 kVp </= 1 sec |
|
SLICE THICKNESS
|
3mm |
3mm |
|
PITCH
|
1.0 |
1.0 |
|
KERNAL
|
std |
std |
|
SFOV
|
300 to 350 mm |
300 to 350 mm |
|
COVERAGE
|
kidneys |
diaphragm -> pubic symphysis |
|
ACQUISITION
|
craniocaudal |
craniocaudal |
|
ORAL CONTRAST
|
water |
--- |
|
IV CONTRAST
|
none |
100 mL Isovue 300 30 mL saline |
|
INJECTION RATE
|
--- |
3.5 to 4 mL/sec |
|
SCAN DELAY
|
--- |
90 sec |
|
RESPIRATION
|
Inspiration |
Inspiration |
|
POSTPROCESSING
|
3mm Coronal and Sagittal |
3mm Coronal and Sagittal |
NOTES: Give 1-2 cups of water just prior to scanning the patient in order to distend the stomach.
