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 Indian J Med Microbiol  
 

Figure 6: Color Doppler three-vessel views at 32 weeks (left panel), 35 weeks (middle panel), and 39 weeks (right panel) showing pulmonary regurgitation (PR) and retrograde flow in the ductus arteriosus (DA). Note the changing angle between the aorta (AO) and the DA with advancing gestation and worsening pulmonary regurgitation. RA: Right atrium. PA: Pulmonary artery

Figure 6: Color Doppler three-vessel views at 32 weeks (left panel), 35 weeks (middle panel), and 39 weeks (right panel) showing pulmonary regurgitation (PR) and retrograde flow in the ductus arteriosus (DA). Note the changing angle between the aorta (AO) and the DA with advancing gestation and worsening pulmonary regurgitation. RA: Right atrium. PA: Pulmonary artery