TIMI flow grade 2

Coronary Angiography
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Left ventriculography
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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]

Overview

TIMI Grade 2 Flow is defined as partial perfusion. Contrast material passes across the obstruction and opacifies the coronary bed distal to the obstruction. However, the rate of entry of contrast material into the vessel distal to the obstruction or its rate of clearance from the distal bed (or both) are perceptibly slower than its flow into or clearance from comparable areas not perfused by the previously occluded vessel (i.e. opposite coronary artery or the coronary bed proximal to the obstruction).

This category is subdivided into:

• 2.0: TIMI 2 slow flow, dye markedly delayed in opacifying distal vasculature.

• 2.5: TIMI 2 fast flow, dye minimally delayed in opacifying distal vasculature.

Examples

• TIMI Flow Grade 2 - Left Anterior Descending Artery

Additional Examples

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