874 / 1116
3. PET data acquisition and image reconstruction
Recommendations
• Image reconstruction should be standardized for PET/CTs use ind
RT-planning on an institutional or study level.
• Hardware and software updates must be reported to the
cooperating RT-responsibles, they may affect volume delineation.
• For standard RT planning purposes, 3D PET/CT imaging following
limited breath hold or tidal breathing is sufficient. 4D PET/CT
acquisitions may be useful to complement 4D-CT information on
the magnitude of tumor motion.
• Artifacts may be induced by metal implants or contrast agents.
Relevant artifacts should be reported by the nuclear medicine
specialists.
19 | D. Thorwarth | 09/2015
ESTRO teaching course on advanced imaging techniques