Abstract #1827
Incorporation of TOF information reduces artifacts in simultaneous TOF PET/MR scanning
Edwin G.W. ter Voert 1 , Helen Davison 1,2 , Felipe de Galiza Barbosa 1,3 , Martin Huellner 1,4 , Patrick Veit-Haibach 1,3 , and Gaspar Delso 5
1
Department of Medical Imaging, Division of
Nuclear Medicine, University Hospital Zurich, Zurich,
Zurich, Switzerland,
2
Department
of Medical Physics, Royal United Hospitals Bath NHS
Foundation Trust, Bath, Somerset, United Kingdom,
3
Department
of Diagnostic and Interventional Radiology, University
Hospital Zurich, Zurich, Zurich, Switzerland,
4
Department
of Medical Imaging, Clinic of Neuroradiology, University
Hospital Zurich, Zurich, Zurich, Switzerland,
5
GE
Healthcare, Waukesha, WI, United States
MR based attenuation correction (MR-AC) is still
challenging in simultaneous PET/MR scanning; especially
near metal implants. A possible solution could be the
inclusion of time-of-flight (TOF) information into the
PET image reconstruction algorithm. To evaluate the
influence of TOF on artifact reduction and improvement
in PET image quality, 35 patients were included and
scheduled for a comparative scan in a new simultaneous
TOF PET/MR scanner. A total 46 clinical PET image
artifacts and 21 simulated artifacts were being
evaluated. In conclusion, time-of-flight information in
simultaneous TOF PET/MR scanning significantly (p<0.01)
reduces PET artifacts and improves clinical reader
confidence.
This abstract and the presentation materials are available to members only;
a login is required.
Join Here
