Dae Seob Choi

1. Agundez M, Rouco I, Barcena J, Mateos B, Barredo J, Zarranz JJ. Hirayama disease: is surgery an option? Neurologia 2015 30:502-509. PMID: 23969297. 2. Chen CJ, Hsu HL, Tseng YC, Lyu RK, Chen CM, Huang YC, et al. Hirayama flexion myelopathy: neutral-position MR imaging findings--importance of loss of attachment. Radiology 2004 231:39-44. PMID: 15068939. 3. Fujimoto Y, Oka S, Tanaka N, Nishikawa K, Kawagoe H, Baba I. Pathophysiology and treatment for cervical flexion myelopathy. Eur Spine J 2002 11:276-285.

The PCN placement technique All PCN procedures were performed by one of three experienced interventional radiologists with 4–16 years of clinical experience. A percutaneous approach through the posterior calyx in the lower or middle pole was preferred in all cases to prevent vascular injury [13]. All PCN procedures were performed under ultrasound and fluoroscopic guidance.

Introduction Stroke related to tandem occlusion of the cervical internal carotid artery (ICA) with concomitant lesion of the associated intracranial artery occurs in approximately 15% of large-vessel acute ischemic strokes.1 In clinical practice, tandem occlusion stroke is a therapeutic challenge because of its poor prognosis.2 Intravenous thrombolysis (IVT) is known for ineffective clinical outcomes because of poor recanalization rates of approximately 8–9% during the first 2 h, reported in...