CT CHEST C- (last updated 7/9/2019, last reviewed 02/07/2022)
INDICATION: Same as for CT Chest C+ with contraindication to IV contrast or if specifically requested by referring MD. Noncontrast chest CT is appropriate for follow-up of noncalcified lung nodules.
SERIES
- 1mm Axial Lung
- 3mm Axial Mediastinal
- 3mm Coronal Lung
- 3mm Coronal Mediastinal
- 3mm Sagittal Lung
- Coronal slab MIP Lung
| Click to edit table header | |
|
POSITIONING/MODE
|
supine/helical |
|
kV/mA/rot time
|
per scanner protocol CareDose/iDose/ASIR Care kV 120 to 140 kVp </= 1 sec |
|
SLICE THICKNESS
|
1mm |
|
PITCH
|
0.6 to 1.2 |
|
KERNAL
|
std and lung |
|
SFOV
|
350 mm |
|
COVERAGE
|
thoracic inlet through adrenals |
|
ACQUISITION
|
craniocaudal |
|
ORAL CONTRAST
|
none* |
|
IV CONTRAST
|
none |
|
RESPIRATION
|
Inspiration |
|
POSTPROCESSING
|
3mm Coronal and Sagittal (lung windows) 3mm Coronal (mediastinal window) Coronal slab MIPs lung window |
NOTES:
***For pediatric patients (<18 yo) follow ALARA principle and use pediatric specific technical parameters per respective CT scanner***