Figure 1.

Schematic of the apparatus used for performing size distribution measurements of Definity® at room (25 °C) and physiological (37 °C) temperatures. PID = proportional integral derivative, UCA = ultrasound contrast agent.

Schematic of the apparatus used for performing size distribution measurements of Definity® at room (25 °C) and physiological (37 °C) temperatures. PID = proportional integral derivative, UCA = ultrasound contrast agent.