CT CHEST C-
(last updated 7/9/2019, last reviewed 01/14/2026)
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
TECHNICAL PARAMETERS
POSITIONING/MODE: supine / helical
kV/mA/rotation time: per scanner protocol, CareDose/iDose/ASIR, Care kV; <1 sec
PITCH: 0.6 to 1.2
SINGLE COLLIMATION WIDTH: 0.625 mm
SLICE THICKNESS: 1 mm
KERNAL: std soft tissue and lung
SFOV: large
COVERAGE: thoracic inlet/apices -> posterior costophrenic sulci
ACQUISITION: craniocaudal
IV CONTRAST: no
RESPIRATION: Inspiration
POSTPROCESSING: 3 mm coronal, 3 mm sagittal, coronal slab MIP
NOTES:
***For pediatric patients (<18 yo) follow ALARA principle and use pediatric specific technical parameters per respective CT scanner***