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Ultrasound
Diagnosis
Vascular
Extremities
Arteries
Wrist Modified Allen Test
Wrist Modified Allen Test
Corey Sivils, MD; Mark E. Lockhart, MD, MPH
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KEY FACTS

  • Terminology

    • Imaging

      • Top Differential Diagnoses

        • Clinical Issues

          TERMINOLOGY

          • Synonyms

            • Doppler Allen test
            • Sonographic Allen test
            • US palmar arch test

          • Definitions

            • Doppler Allen test
              • Sonographic evaluation using duplex Doppler to confirm normal flow reversal of superficial palmar artery at thenar eminence after occlusion of radial artery flow at wrist

          IMAGING

          • General Features

            • Ultrasonographic Findings

              • CT Findings

                • MR Findings

                  • Imaging Recommendations

                    DIFFERENTIAL DIAGNOSIS

                      PATHOLOGY

                      • General Features

                        CLINICAL ISSUES

                        • Presentation

                          • Demographics

                            • Treatment

                              DIAGNOSTIC CHECKLIST

                              • Consider

                                • Image Interpretation Pearls

                                  • Reporting Tips

                                    Selected References

                                    1. Habib J et al: Assessment of collateral circulation to the hand prior to radial artery harvest. Vasc Med. 17(5):352-61, 2012
                                    2. Kohonen M et al: Is the Allen test reliable enough? Eur J Cardiothorac Surg. 32(6):902-5, 2007
                                    3. Abu-Omar Y et al: Duplex ultrasonography predicts safety of radial artery harvest in the presence of an abnormal Allen test. Ann Thorac Surg. 77(1):116-9, 2004
                                    4. Starnes SL et al: Noninvasive evaluation of hand circulation before radial artery harvest for coronary artery bypass grafting. J Thorac Cardiovasc Surg. 117(2):261-6, 1999
                                    5. Johnson WH 3rd et al: Simplified method for candidate selection for radial artery harvesting. Ann Thorac Surg. 65(4):1167, 1998
                                    Related Anatomy
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                                    Related Differential Diagnoses
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                                    References
                                    Tables

                                    Tables

                                    KEY FACTS

                                    • Terminology

                                      • Imaging

                                        • Top Differential Diagnoses

                                          • Clinical Issues

                                            TERMINOLOGY

                                            • Synonyms

                                              • Doppler Allen test
                                              • Sonographic Allen test
                                              • US palmar arch test

                                            • Definitions

                                              • Doppler Allen test
                                                • Sonographic evaluation using duplex Doppler to confirm normal flow reversal of superficial palmar artery at thenar eminence after occlusion of radial artery flow at wrist

                                            IMAGING

                                            • General Features

                                              • Ultrasonographic Findings

                                                • CT Findings

                                                  • MR Findings

                                                    • Imaging Recommendations

                                                      DIFFERENTIAL DIAGNOSIS

                                                        PATHOLOGY

                                                        • General Features

                                                          CLINICAL ISSUES

                                                          • Presentation

                                                            • Demographics

                                                              • Treatment

                                                                DIAGNOSTIC CHECKLIST

                                                                • Consider

                                                                  • Image Interpretation Pearls

                                                                    • Reporting Tips

                                                                      Selected References

                                                                      1. Habib J et al: Assessment of collateral circulation to the hand prior to radial artery harvest. Vasc Med. 17(5):352-61, 2012
                                                                      2. Kohonen M et al: Is the Allen test reliable enough? Eur J Cardiothorac Surg. 32(6):902-5, 2007
                                                                      3. Abu-Omar Y et al: Duplex ultrasonography predicts safety of radial artery harvest in the presence of an abnormal Allen test. Ann Thorac Surg. 77(1):116-9, 2004
                                                                      4. Starnes SL et al: Noninvasive evaluation of hand circulation before radial artery harvest for coronary artery bypass grafting. J Thorac Cardiovasc Surg. 117(2):261-6, 1999
                                                                      5. Johnson WH 3rd et al: Simplified method for candidate selection for radial artery harvesting. Ann Thorac Surg. 65(4):1167, 1998