Steno-occlusion

Short segment filling defect involving the left subclavian artery just distal to its origin , extending to origin left vertebral artery – possibility of resultant subclavial steal phenomenon cannot be ruled out.

Abrupt termination of the proximal left brachial artery, 4.5 cm distal to the level of left gleno-humeral joint with 100% luminal diameter reduction – suggestive of
Complete lack of flow signal intensity along the entire course of left brachial artery.