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  Indian J Med Microbiol
 

Figure 2: Panel a shows a significant dilated trunk of the main pulmonary artery; Panel b shows a pulsed-wave (PW) spectral Doppler of severe pulmonary regurgitation; Panel c shows a M-mode color Doppler of severe pulmonary regurgitation; Panel d shows a typical pattern of PW Doppler acceleration time of pulmonary flow with mid-systolic notching

Figure 2: Panel a shows a significant dilated trunk of the main pulmonary artery; Panel b shows a pulsed-wave (PW) spectral Doppler of severe pulmonary regurgitation; Panel c shows a M-mode color Doppler of severe pulmonary regurgitation; Panel d shows a typical pattern of PW Doppler acceleration time of pulmonary flow with mid-systolic notching