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Automatic delineation of functional lung volumes with 68Ga-ventilation/perfusion PET/CT.

Pierre-Yves Le RouxShankar SivaJason CallahanYannis ClaudicDavid BourhisDaniel P SteinfortRodney J HicksMichael S Hofman
Published in: EJNMMI research (2017)
To automatically delineate functional volumes with 68Ga-V/Q PET/CT, the most appropriate cutoff was 15%max for both ventilation and perfusion images. However, using this unique threshold systematically provided unacceptable variability compared to the reference volume and relatively poor correlation with PFT parameters. Accordingly, a visually adapted semi-automatic method is favored, enabling rapid and quantitative delineation of lung functional volumes with 68Ga-V/Q PET/CT.
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