A Case of Ischemia-onset-type Vertebral Artery Dissection Enlarged in a Short Period and Reduced after Internal Trapping

Abstract

Purpose: We report a patient in whom basi-parallel anatomical scanning (BPAS) confirmed the enlargement of ischemia-onset-type vertebral artery dissection in a short period and its reduction after internal trapping.

Case: A 44-year-old male consulted the Emergency Outpatient Unit with sudden posterior cervical pain and gait disorder. Magnetic resonance imaging (MRI) revealed vertebral artery dissection-related bulbar infarction, and he was admitted. MRI and Magnetic resonance angiography (MRA) were performed every 2 months at the outpatient clinic, showing a serial increase in the dissected lumen. Internal trapping was conducted. Postoperative MRI, MRA, and BPAS confirmed a serial reduction in the outer diameter of the dissected lumen.

Conclusion: BPAS is useful for evaluating the progression of vertebral artery dissection and healing process after internal trapping.