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FIG 2. Tracings of the pressure-sensing guidewire during angioplasty show instantaneous pressure waves and mean arterial pressures detected by using the guiding catheter proximal to the left SCA lesion (red curves) and distal to the left VA lesion (green curves).Yellow curves are instantaneous FFRs (0.45, 0.88, and 0.92).A, Before treatment. B, After stent placement in the VA ostium. C, After stent placement in the VA ostium and proximal SCA.
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