Predictors of initial 18F-fluorodeoxyglucose-positron emission tomography indication among patients with colorectal cancer
| Autor: | Hanna M. Zafar, Diana Bonaccorsi, Katrina Armstrong, Stacy Kramer, Curtis P. Langlotz |
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| Rok vydání: | 2012 |
| Předmět: |
Male
medicine.medical_specialty business.industry Colorectal cancer General Medicine Middle Aged medicine.disease Fluorodeoxyglucose positron emission tomography Treatment Outcome Fluorodeoxyglucose F18 Positron-Emission Tomography medicine Humans Radiology Nuclear Medicine and imaging Female Radiology Single institution Radiopharmaceuticals business Colorectal Neoplasms Aged Follow-Up Studies |
| Zdroj: | Nuclear medicine communications. 33(7) |
| ISSN: | 1473-5628 |
| Popis: | To evaluate the determinants of initial F-fluorodeoxyglucose (F-FDG)-PET indication following primary colorectal cancer diagnosis among patients who underwent surgery between January 2000 and December 2007 and who were observed at a single institution for at least 2 years after diagnosis.Of the 530 patients who underwent colorectal cancer resection, 113 patients received at least one F-FDG-PET following diagnosis. Outcome variables included indication and time of the first F-FDG-PET following diagnosis. Potential predictors included disease-level and patient-level characteristics. Univariate and multivariate regression analyses were performed.Patients diagnosed later in the study period and patients with higher-stage disease were more likely to receive their first F-FDG-PET for initial staging (P0.001 and P=0.016, respectively). Patients with lower-stage disease were more likely to receive their initial F-FDG-PET for suspected recurrence on conventional imaging. When performed more than 2 years after diagnosis, F-FDG-PET was more likely to be ordered for suspected recurrence either on the basis of conventional imaging or on the basis of patient symptoms/tumor markers (P=0.003 and 0.031, respectively). F-FDG-PET demonstrated disease progression in at least 50% of patients referred for each indication (P=0.037).Higher utilization of F-FDG-PET may be appropriate among patients referred for a number of indications including: initial staging, particularly among those with higher-stage disease; suspected recurrence on conventional imaging among patients with lower-stage disease; and suspected recurrence more than 2 years after diagnosis. Further research is needed to verify these findings. |
| Databáze: | OpenAIRE |
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