Reliability of Allen’s test in selection of patients for radial artery harvest Martin A Jarvis, Claire L Jarvis, BSc, Peter R.M Jones, PhD, Tomasz J Spyt The Annals of Thoracic Surgery Volume 70, Issue 4, Pages 1362-1365 (October 2000) DOI: 10.1016/S0003-4975(00)01551-4
Fig 1 Doppler ultrasound waveform recordings from the princeps pollicis artery (A) before and (B) during radial artery compression demonstrating no change in the arterial pulse waveform in a patient with an adequate ulnar collateral blood supply. The Annals of Thoracic Surgery 2000 70, 1362-1365DOI: (10.1016/S0003-4975(00)01551-4)
Fig 2 Doppler ultrasound waveform recordings from the princeps pollicis artery (A) before and (B) during radial artery compression demonstrating significant damping of the arterial pulse waveform a patient with an inadequate ulnar collateral blood supply. The Annals of Thoracic Surgery 2000 70, 1362-1365DOI: (10.1016/S0003-4975(00)01551-4)