摘要 |
A pulse Doppler ultrasound system and associated methods are described for monitoring blood flow. A graphical information display includes simultaneous ly displayed depth-mode and spectrogram displays. The depth-mode display indicates the various positions along the ultrasound beam axis at which bloo d flow is detected. These positions are indicated as one or more colored regions, with the color indicating direction of blood flow and varying in intensity as a function of detected Doppler ultrasound signal amplitude or detected blood flow velocity. The depth-mode display also includes a pointer whose position may be selected by a user. The spectrogram displayed corresponds to the location identified by the pointer. Embolus detection and characterization are also provided. |