Preoperative radiological assessment for vascular access

Eur J Vasc Endovasc Surg. 2006 Jan;31(1):64-9. doi: 10.1016/j.ejvs.2005.10.002.


There is increasing evidence that routine preoperative duplex scanning ultrasound cannot only increase the utilisation of native AVF for dialysis access but also allow proper selection of a target vessel with adequate luminal diameter to improve outcome. A minimum arterial diameter of 2mm is associated with successful fistula formation. A threshold for minimal venous diameter is difficult to establish. Most clinical studies use a value of 2.5mm for AVF and 4mm for prosthetic grafts. Traditional contrast venography is mandatory where there is suspicion of central vein stenosis. In predialysis patients where there is a risk of contrast nephropathy MR venography is emerging as a possible alternative.

Publication types

  • Review

MeSH terms

  • Angiography / methods*
  • Arteriovenous Shunt, Surgical / methods*
  • Axillary Vein / diagnostic imaging
  • Axillary Vein / surgery*
  • Brachial Artery / diagnostic imaging
  • Brachial Artery / surgery*
  • Catheters, Indwelling
  • Humans
  • Kidney Failure, Chronic / therapy
  • Phlebography / methods*
  • Preoperative Care / methods*
  • Renal Dialysis / methods
  • Reproducibility of Results
  • Ultrasonography, Doppler, Duplex / methods*