Fig. 7From: Development of temperature controller-integrated portable HIFU driver for thermal coagulationThermal coagulation in ex vivo bovine liver tissue during 300-s HIFU exposure with PID controller: a transverse cross-sectional images of coagulated tissue captured at various exposure times (60, 120, 180 and 300 s) and b coagulation area as a function of exposure time (N = 5, red line represents a linear fitting of coagulation area (R2 = 0.99))Back to article page