mTICI reperfusion grade (stroke thrombectomy)
Grades reperfusion after stroke thrombectomy: the mTICI scale, 0 to 3, from how much of the previously occluded territory is reperfused on the final angiogram.
Open the calculator → Runs in your browser. Data leaves only if you deliberately send a problem report from the interactive tool.
Example
- Reperfusion of the previously occluded territory
- More than half but less than two thirds
Result: mTICI 2b, a success - and original TICI 2a, which is not; the two scales part between one half and two thirds
The tool opens with these values already filled in. Replace them with your own.
What the result means
- mTICI 0
- No perfusion.
- mTICI 1
- Antegrade reperfusion past the initial occlusion, but limited distal branch filling with little or slow distal reperfusion.
- mTICI 2a
- Antegrade reperfusion of less than half of the previously occluded territory.
- mTICI 2b
- Antegrade reperfusion of more than half of the previously occluded territory.
- mTICI 3
- Complete antegrade reperfusion, with absence of visualized occlusion in all distal branches.
- Where the scales part
- The original TICI scale sets 2b at more than two thirds of the territory rather than more than half, so an angiogram in between is mTICI 2b and original TICI 2a.
- Success
- mTICI 2b to 3, reported as the optimal threshold for predicting a good outcome (sensitivity 78%, specificity 65%). Most older trials defined success as TIMI 2 to 3 or TICI 2a to 3.
- What the grades bought
- In IMS III, mTICI 3 and 2b were associated with 80% and 46.3% good outcome at 90 days (mRS 2 or less), against 19.4% for 2a.
What you enter
- Reperfusion of the previously occluded territory
How this is calculated
Zaidat OO, Yoo AJ, Khatri P, et al. Recommendations on angiographic revascularization grading standards for acute ischemic stroke: a consensus statement. Stroke. 2013;44(9):2650-2663. Read the source ↗
A reference and educational tool. Not medical, legal, or financial advice, and not a substitute for clinician judgment.