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  Indian J Med Microbiol
 

Figure 1: Left atrial fractional shortening measurement. Left atrial fractional shortening is calculated as ([maximum APD − minimum APD]/maximum APD) × 100 in parasternal long axis. It is possible to observe how the excursion of the wall generates a profile comparable to peak atrial longitudinal strain curve (right)

Figure 1: Left atrial fractional shortening measurement. Left atrial fractional shortening is calculated as ([maximum APD − minimum APD]/maximum APD) × 100 in parasternal long axis. It is possible to observe how the excursion of the wall generates a profile comparable to peak atrial longitudinal strain curve (right)