Premium
WE‐E‐M100J‐03: PET‐CT Simulation of Tumors in the Thorax: Pitfalls and Workaround
Author(s) -
Pan T
Publication year - 2007
Publication title -
medical physics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.473
H-Index - 180
eISSN - 2473-4209
pISSN - 0094-2405
DOI - 10.1118/1.2761592
Subject(s) - workaround , thorax (insect anatomy) , pet ct , positron emission tomography , nuclear medicine , medical imaging , image resolution , scanner , imaging phantom , medicine , medical physics , computer science , radiology , computer vision , artificial intelligence , anatomy , programming language
PET/CT simulation of tumors in the thorax suffers from potential misalignment between the CT and the PET images even though the data are acquired in the same imaging session on the PET/CT scanner. The misalignment was caused by the fast acquisition of the CT images in sub‐second temporal resolution and the slow acquisition of the PET data of over several minutes. Current approach of degrading the CT images in spatial resolution does not fix the problem. We will go over the pitfalls resulted from the mismatch of CT and the PET data, and will review a new average CT scan to mitigate this problem, and its potential impact to radiation therapy planning.