On the difference of 3D and 4D in-beam PET for a periodically moving target
نویسندگان
چکیده
From 1997 to 2008 the treatment of more than 400 patients with C ions at the experimental heavy ion treatment facility at GSI has been successfully monitored in vivo and in situ by means of 3D in-beam PET. The promising clinical results of the ion therapy for static tumor entities encourages to apply it to more frequent ones like lung cancer. Due to the sensitivity of the ion range to density changes along the beam path and the complex active beam delivery for these intrafractional moving tumors it is desirable to have excellent quality assurance techniques like a timeresolved (4D) in-beam PET dose monitoring.
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