RENAL ARTERY CTA
(last updated 6/20/2016, last reviewed 01/15/2026)
INDICATION: r/o renal artery stenosis. Renovascular hypertension. Fibromuscular Dysplasia. Vasculitis, vasculopathy.
SERIES
- 1mm Axial CTA
- 3mm Coronal CTA
- 3mm Sagittal CTA
- 3D volume rendered & MIPS
TECHNICAL PARAMETERS – ARTERIAL (CTA)
POSITIONING/MODE: supine / helical
SINGLE COLLIMATION WIDTH: 0.625 mm
SLICE THICKNESS: 1 mm
KERNAL: std
SFOV: large
COVERAGE: diaphragm -> 2cm above acetabulum (be sure to entirely include each kidney)
ACQUISITION: craniocaudal
ORAL CONTRAST: no
IV CONTRAST: 75 to 100 mL Isovue 370
INJECTION RATE: 4 mL/sec
SCAN DELAY: Care bolus aorta @ diaphragm (100HU) ~30 sec
RESPIRATION: inspiration
POSTPROCESSING: 3 mm cor/sag CTA, volume rendered 3D