PET Diagnostic Accuracy: Improvement with In-Line PET-CT System: Initial Results

The authors describe the initial application for tumor staging with an in-line system with a positron emission tomographic (PET) scanner and a multi–detector row helical computed tomographic (CT) scanner combined in one machine. Fifty-three patients underwent imaging with four CT tube currents and PET emission and transmission data acquisition. Stepwise analysis of coregistered images revealed a significant (P < .05, McNemar test) improvement in lesion classification between PET images alone and coregistered images from the PET-CT examination.

© RSNA, 2002

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Article History

Published in print: Nov 2002