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Comparison between older and contemporary ultrasound imaging consoles. Notice differences in console size and shape as well as image quality. (A) Siemens Sonoline® Prima ultrasound unit from 1995. (B) Longitudinal image of a normal kidney with Siemens unit. (C) Hitachi Aloka ProSound Alpha 7 ultrasound console currently in production. (D) Longitudinal image of a normal kidney with Hitachi unit.
