Variant 1: Suspected dysfunction of upper or lower extremity hemodialysis access (ie, arteriovenous fistula or graft) suggested by an abnormal clinical indicator or hemodynamic indicator (ie, reduction in dialysis vascular access blood flow rate or kinetics). Initial imaging to guide interventional radiologic therapy options.
Variant 2: Suspected dysfunction of the upper or lower extremity hemodialysis access (ie, arteriovenous fistula or graft) suggested by an abnormal clinical indicator or hemodynamic indicator (ie, reduction in dialysis vascular access blood flow rate or kinetics). Treatment and procedures.
Variant 3: Suspected thrombosis of the upper or lower extremity hemodialysis access, marked by absent pulse and thrill on physical examination. Initial imaging to guide interventional radiologic therapy options.
Variant 4: Suspected thrombosis of the upper or lower extremity hemodialysis access, marked by absent pulse and thrill on physical examination. Treatment and procedures.
Variant 5: Failure of an upper or lower extremity arteriovenous fistula to mature within 2 months after creation. Initial imaging to guide interventional radiologic therapy options.
Variant 6: Failure of an upper or lower extremity arteriovenous fistula to mature within 2 months after creation. Treatment and procedures.
Variant 7: Clinical suspicion of central venous stenosis or occlusion suggested by swelling (ie, soft tissue edema) of the extremity ipsilateral to the upper or lower extremity hemodialysis access, with or without the development of venous collaterals. Initial imaging to guide interventional radiologic therapy options.
Variant 8: Clinical suspicion of central venous stenosis or occlusion suggested by swelling (ie, soft tissue edema) of the extremity ipsilateral to the upper or lower extremity hemodialysis access, with or without the development of venous collaterals. Treatment and procedures.
Variant 9: Abnormal skin changes associated with the upper or lower extremity hemodialysis access cannulation site, including marked thinning, ulceration, eschar formation, spontaneous bleeding, pseudoaneurysm formation, superficial or deep infection. Initial imaging to guide interventional radiologic therapy options.
Variant 10: Abnormal skin changes associated with the upper or lower extremity hemodialysis access cannulation site, including marked thinning, ulceration, eschar formation, spontaneous bleeding, pseudoaneurysm formation, superficial or deep infection. Treatment and procedures.
Variant 11: Suspected vascular steal syndrome (upper or lower extremity), suggested by cardiac failure or ischemic symptoms. Initial imaging to guide interventional radiologic therapy options.
Variant 12: Suspected vascular steal syndrome (upper or lower extremity), suggested by cardiac failure or ischemic symptoms. Treatment and procedures.
Appendix Key

A more complete discussion of the items presented below can be found by accessing the supporting documents at the designated hyperlinks.

Appropriateness Category:The panel’s recommendation for a procedure based on the assessment of the risks and benefits of performing the procedure for the specified clinical scenario.

SOE: Strength of Evidence. The assessment of the amount and quality of evidence found in the peer reviewed medical literature for an appropriateness recommendation.

  • References: The citation number and PMID for the reference(s) associated with the recommendation.
  • Study Quality: The assessment of the quality of an individual reference based on the number of study quality elements described in the reference.

RRL: Relative Radiation Level. A population based assessment of the amount of radiation a typical patient may be exposed to during the specified procedure.

Rating: The final rating (1-9 scale) for the procedure as determined by the panel during rating rounds.

Median: The median rating (1-9 scale) for the procedure as determined by the panel during rating rounds.

Final tabulations: A histogram showing the number of panel members who rated the procedure as noted in the column heading (ie, 1, 2, 3, etc.).

Additional supporting documents about the AC methodology and processes can be found at www.acr.org/ac.