Which statement describes mTICI grade 2b?

Which statement describes mTICI grade 2b?

• A. Reperfusion >50% but incomplete of downstream target arterial region
• B. Reperfusion beyond occlusion with distal branches
• C. No reperfusion
• D. Complete reperfusion

Answer: (B)

Understanding how mTICI grading measures reperfusion after thrombectomy is essential. In grade 2b there is substantial reperfusion of the downstream territory supplied by the occluded vessel, meaning that a large portion of the affected area is perfused and the distal branches are filling, but the restoration is not complete. The statement that describes reperfusion beyond the occlusion with distal branches best captures this pattern: blood flow has reached past the blockage into the distal vasculature without full, complete restoration of the entire territory. This differentiates from no reperfusion (0) and complete reperfusion (3).

Understanding how mTICI grading measures reperfusion after thrombectomy is essential. In grade 2b there is substantial reperfusion of the downstream territory supplied by the occluded vessel, meaning that a large portion of the affected area is perfused and the distal branches are filling, but the restoration is not complete. The statement that describes reperfusion beyond the occlusion with distal branches best captures this pattern: blood flow has reached past the blockage into the distal vasculature without full, complete restoration of the entire territory. This differentiates from no reperfusion (0) and complete reperfusion (3).