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Fig. 5 | Cardiovascular Ultrasound

Fig. 5

From: Left ventricular high frame rate echo-particle image velocimetry: clinical application and comparison with conventional imaging

Fig. 5

Patient 1. A, C: CMR in diastole and systole, highly suggestive for a hypertrophic cardiomyopathy; flow acceleration in the LVOT with a tendency to luminal obliteration in mid-systole; B: CW Doppler of the LVOT at rest (upper) and during Valsalva manoeuver (lower).The high-velocity flow could also be detected by careful interrogation with continuous-wave Doppler. D: HFR echoPIV in early diastole. Early diastolic inflow (black arrow) had higher velocity and an vertical direction (Additional file 5), and echoPIV revealed the lacking of the mid-LV vortex that normally appears in healthy individuals (Additional file 1), probably as a result of diastolic dysfunction.; E: HFR echoPIV in mid-systole. LVOT flow acceleration and narrowing (black arrows)

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