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Fig. 4. —Graph shows average deviation of center of pathologic uptake between PET and CT images with mean ± SD (bar). Lesions were classified into four groups—that is, pulmonary nodules (group A), mediastinal and supraclavicular lymph nodes or pleural dissemination (group B), liver metastasis or peritoneal dissemination (group C), and paraaortic and inguinal lymph nodes or local recurrence of rectal carcinoma (group D). Although respiratory motion may have influenced localization between the two techniques, especially in groups A and C, no significant differences were observed among the groups (one-factor analysis of variance, p = 0.098).