Tracking of bladder motion and gut peristalsis using MRI.

Bladder filling and gut peristalsis are significant confounds to high quality abdominal imaging. As a result, imaging in this region needs to be performed rapidly in order to reduce motion-induced resolution loss. Scans that are sufficiently long in duration to allow these motions to corrupt the images cannot have the desired resolution and may provide no more information than shorter scans. Integration of MR data into the radiotherapy planning and treatment will have to be performed within a short time period. The reported approach allows fast, high-resolution imaging which will result in more accurate examinations of the lower abdomen.

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