Lena Douglas1, Rose-Marie Claesson2,
Bo Ehnmark2, Thrstur Finnbogason2, Anna-Mrta Lng2,
Bo Nordell1, Morten Bruvold3, Jouke Smink3,
Permjit Jhooti4
1Department of Medical Physics,
Karolinska University Hospital, Stockholm, Sweden; 2Department of
Pediatric Radiology, Astrid Lindgren Children's Hospital, Karolinska
University Hospital, Stockholm, Sweden; 3Philips Healthcare, Best,
Netherlands; 4Radiological Physics, University Hospital of Basel,
Basel, Switzerland
MRI
examinations of pediatric patients can be challenging partly because many
children have difficulties in lying still. The aim of this work is to
introduce in respiratory controlled sequences a biofeedback game in which the
child can control the flight of an airplane on a screen through the diaphragm
position, as registered by standard navigator echoes. Given a task to focus
on children are less likely to move during scanning leading to less motion
artifacts. When playing the game the breathing pattern also becomes smoother
with a more regular end-expiratory position, leading to more efficient and
shorter examinations.