Noninvasive Imaging Identified Abnormality in 62% of Cervical Arteriovenous Shunt Lesions

In 52 cervical spine arteriovenous shunt lesions, noninvasive imaging found an abnormality before catheter angiography in 62%, and 79% of patients who had MRI/MRA had a relevant finding, most often a discrete vascular lesion. Yet 38% had no imaging clue, underscoring the continu…

• Among patients who underwent MRI/MRA, 22/39 (79%) demonstrated a relevant finding, most commonly a discrete vascular lesion (11/22, 50%).
• A substantial minority (20/52, 38%) had no noninvasive imaging evidence of a vascular lesion prior to catheter angiography, which remains the gold standard.

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