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Figure 4 Transthoracic spectral Doppler flow velocity curves at rest and during hyperemia in the left anterior descending coronary artery before (upper panels) and one day after angioplasty by rotablation (lower panels) in a 19-year-old patient with 95% stenosis at both sites just proximal and distal to the aneurysm. Peak coronary flow velocity reserve increased from 1.1 to 2.0.
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