Andre M. Sprengers1, Aart J. Nederveen2,
Rolf M. Lamerichs3, Jaap Stoker2
1Radiology, AMC , Amsterdam,
Netherlands; 2Radiology, AMC, Amsterdam, Netherlands; 3Research,
Philips, Eindhoven, Netherlands
The
assessment of small bowel motility is a difficult task because of its complex
nature. SPAMM or SPatial Modulation of the Magnetization is a strong
candidate for a minimally invasive, observer independent method of motion
assessment. The SPAMM method uses a prepulse to impose a lineshaped pattern
on the magnetization. Upon readout, this pattern is distorted as a result of
tissue motion between prepulse and readout. Originally developed for cardiac
imaging, the SPAMM sequence was reconfigured for nonperiodic motion. The novel SPAMM technique was
validated by focussing on the
heartmotion, breathing motion and small bowel motility.
Keywords