A variety of equipment can be used for atherectomy:
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Rotational: uses a rotating, diamond-tipped burr which spins at high speeds (150K rpm) to ablate and modify calcified plaque
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Orbital: uses a diamond-coated crown which rotates at high speeds to differentially sand plaque within the artery
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Laser: uses a light energy emitted from a small catheter to vaporize and modify plaque
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Directional: uses a directional cutting device to remove larger amounts of plaque built up on the artery wall (works like ‘Pac-Man’)