CT ANGIOGRAPHY RENAL

INDICATIONS (2)

ct angio renal indications

Renal artery stenosis assessment – e.g. renovascular hypertension.
Renal artery mass lesion, aneurysm or malformation pre-operative workup.
Renal artery occlusion, thrombosis or dissection.
Pre-operative workup for renal transplant (donor or recipient).
Post-operative assessment of renal transplant.
Renal Trauma: See CT Multiphase Abdomen.

Note: CT renal angiography is commonly performed as part of a multi-phase abdominal/KUB study (e.g. work up of haematuria).

CT ANGIO RENAL PT PREP

Patient able to lie still for ten minutes
Not claustrophobic (sedation may be given)
Cognitively capable of following basic instructions
Metal artefacts removed from the region of interest
No respiratory distress when lying supine
Not allergic to Iodine based contrast
No known kidney disease (eGFR below 30 as per RANZCR), however, acute setting consultant may sign to continue with poor renal function
No hyperthyroidism, may induce thyroid storm
Patient to have 18G cannula in anterior cubital fossa to enable a 7ml/s flow rate (20G cannula acceptable if flushing to 5ml/s).
Preferably patient fasted for 4 hours

ct angio renal anatomy

Patterson et al., 2016 - Clinical indications for CT angiography in lower extremity trauma, Current Orthopaedic Practice 27(4):p 400-404
American College of Radiology (ACR). Appropriateness Criteria. [Internet]. 2022 [Updated 2023, Cited 20 Feb 2024]. Available from https://www.acr.org/Clinical-Resources/ACR-Appropriateness-Criteria