Joint Study of Extracranial Arterial Occlusion

Authors:
  • WHWilliam K. Hass
    William K. Hass
  • WFWilliam S. Fields
    William S. Fields
  • RNRichard R. North
    Richard R. North
  • IKIrvin I. Kricheff
    Irvin I. Kricheff
  • NCNorman E. Chase
    Norman E. Chase
  • RBRaymond B. Bauer
    Raymond B. Bauer
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Abstract
For 80% of 4,748 patients with cerebrovascular insufficiency, complete four-vessel examinations were made. Although the primary purpose was localization of surgically accessible extracranial lesions, intracranial studies were also obtained in a high percentage of cases. The overall grave complication rate was 1.2%. A test of interinstitutional comparability of x-ray interpretation revealed greatest agreement when lesions compromised more than 50% of the arterial lumen.