Abstract #0412
Respiratory and cardiac non-rigid motion correction for cardiac PET-MR
Christoph Kolbitsch 1 , Mark Ahlman 2 , Michael Hansen 3 , Javier Royuela del Val 1,4 , Peter Kellman 3 , David A. Bluemke 2 , and Tobias Schaeffter 1
1
Division of Imaging Sciences and Biomedical
Engineering, King's College London, London, London,
United Kingdom,
2
Clinical
Center, Radiology and Imaging Sciences, National
Institute of Health, Bethesda, MD, United States,
3
National
Heart, Lung, and Blood Institute, National Institutes of
Health, Bethesda, MD, United States,
4
Laboratorio
de Procesado de Imagen, Universidad de Valladolid,
Valladolid, Valladolid, Spain
Positron emission tomography (PET) is commonly used to
diagnose and assess ischemic heart disease. Respiratory
and cardiac motion during data acquisition can severely
impair the obtained cardiac perfusion information. Here
we present a simultaneous PET-MR acquisition technique,
which yields 3D high-resolution anatomical MR images and
non-rigid motion information of both respiratory and
cardiac movement. Both types of motion information can
be used to compensate for artefacts in PET and MR
images. The feasibility of the motion compensated PET-MR
approach is demonstrated.
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