IMPLEMENTING REAL-TIME CARDIAC IMAGING USING THE TMS320C3X DSP

Magnetic resonance imaging (MRI) is a powerful medical diagnostic tool providing very detailed three-dimensional images of both stationary and moving objects. Unfortunately, current MRI systems cannot produce high definition images of moving objects in real time because of errors and artifacts caused by movement in the images. One method used to correct these artifacts collects position data using navigator echoes and post-processes the data to reverse the effects of object motion. Nevertheless, the physician still must wait for the data to be processed before viewing the images.

This application report describes a novel dynamic MRI method for real-time, high-resolution cardiac imaging using the Texas Instruments (TIä) TMS320C3x digital signal processor (DSP). The TMS320C3x processes the data as it is being received, creating real-time images of moving organs. Applications for real-time dynamic imaging include cardiac imaging, angiography, and abdominal imaging.

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