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Figure 1 Example of Transmitral and Pulmonary Venous Doppler Interrogation Before and After Pulmonary Thromboendarterectomy

Transmitral pulsed-wave Doppler interrogation (left) and pulmonary venous Doppler interrogation (right) in a patient with chronic thromboembolic pulmonary hypertension before (above) and after (below) pulmonary thromboendarterectomy.