Abstract: A method for measuring cardiac pressure includes positioning a fluid-filled catheter and a pressure wire sensor at a cardiac pressure calibration location. A first pressure measurement is acquired from the fluid-filled catheter and a second pressure measurement is acquired from the pressure wire sensor. A set of equalization parameters is identified to apply to the first pressure measurement to reduce an error between the first pressure measurement and the second pressure measurement. The equalization parameters include a frequency correction parameter and a damping correction parameter to correct for frequency and damping of oscillations in the first pressure measurement. A third pressure measurement is acquired from the fluid-filled catheter. The set of equalization parameters is applied to equalize the third pressure measurement.

Abstract: Systems and methods for adding credit to a wireless telecommunications account. A financial transaction system may receive a request for a wireless telecommunication credit transfer. This request may come from any entity desiring the transfer wireless telecommunication credit. The financial transaction system may also receive, from the funding user, an authorization of the request to transfer wireless telecommunication credit. Upon receipt of an authorization from the funding user, the financial transaction system charges the funding user for the wireless telecommunication credit and transfers a wireless telecommunication credit to the wireless telecommunication account of the recipient.