Duplex
  • Preferred distal radial artery diameter >2.5mm
  • Absence of stenosis, occlusion or calcification of the radial artery
PPG Testing for Palmar Arch Patency
  • Flatline, or nearly flatline PPGs with radial artery compression indicates radial artery dominance
  • Flatline, or nearly flatline PPGs with ulnar artery compression indicates ulnar artery dominance

Daigle, R (2009). Techniques in noninvasive vascular diagnosis: An encyclopedia of vascular testing 3rd edition. Littleton, CO: Summer Publishing.