Acertara Acoustic Laboratories, Longmont, Colo, introduced an Artis TDS ultrasonic test device that now provides users with a quantitative assessment of the receive sensitivity of ultrasound transducers. Acertara, an independent ISO/IEC 17025:2005-accredited medical ultrasound acoustic measurement and testing laboratory, designed the device for use in photoacoustic imaging. Photoacoustics combines the advantages of laser stimulation of targets with ultrasound receive sensitivity and system processing, providing both morphologic information as well as functional data. The new Artis establishes a baseline of sensitivity performance of the ultrasound component of the probe and matches those sensitivity parameters to the intended clinical application by using the time delay spectrometry (TDS) technique. TDS objectively determines the receive sensitivity versus frequency of the probes. Once this result has been established for any given probe, a physician can match the proper probe to the clinical application and have the probe re-tested as a function of time to ensure continuing baseline performance levels.