1. A 59-Year-Old Man in Refractory Shock
Minkyung Kwon, MD, Yalew T. Debella, MD, John E. Moss, MD, Olga Paniagua, MD, Jose L. Diaz-Gomez, MD 
CHEST 
Volume 154, Issue 4, Pages e93-e96 (October 2018)
DOI: /j.chest
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2. Figure 1
Pulsed-wave Doppler and continuous-wave Doppler. A, Initial pulsed-wave Doppler gate from apical five-chamber view sampling left ventricular outflow tract velocity could not be registered accurately because of aliasing. B, Continuous-wave Doppler gate from apical five-chamber view sampling of left ventricular outflow tract velocity revealed a maximal velocity up to 6 m/s and respiratory variation in left ventricular outflow tract in the setting of sinus tachycardia.
CHEST  , e93-e96DOI: ( /j.chest )
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3. Figure 2
Continuous-wave Doppler after treatment of dynamic left ventricular outflow tract obstruction. Continuous-wave Doppler gate from apical five-chamber view sampling of left ventricular outflow tract velocity revealed a maximal velocity of 1.5 m/s and peak pressure gradient of 9 mm Hg, confirming the resolution of dynamic left ventricular outflow tract obstruction.
CHEST  , e93-e96DOI: ( /j.chest )
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