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1.
J Nucl Med ; 42(8): 1139-43, 2001 Aug.
Article in English | MEDLINE | ID: mdl-11483671

ABSTRACT

UNLABELLED: Correct staging is important in selecting the appropriate treatment for lymphoma patients. PET imaging with (18)F-FDG is useful for staging of lymphoma as well as for monitoring of therapy. However, to our knowledge, the clinical impact of PET on staging and management of lymphoma patients has not been reported. METHODS: Standardized questionnaires were mailed to referring physicians asking them whether and how the results of PET imaging had influenced clinical staging and management of the disease in their patients. Management changes, when present, were classified as intermodality (e.g., medical to surgical, surgical to radiation, medical to no treatment) or intramodality (e.g., altered medical, surgical, or radiotherapy approach). RESULTS: The referring physicians returned 52 of 108 questionnaires (48.1%). Physicians indicated that PET led to a change in the clinical stage in 44% of patients: 21% were upstaged and 23% were downstaged. Findings of the PET examination resulted in intermodality changes in management in 42% of patients, in intramodality changes in 10%, and in a combination of the management changes in 10%. Other, not further specified, treatment changes were reported in 6% of patients. PET did not result in any management changes in only 32% of patients. CONCLUSION: This survey-based study of referring physicians indicates that FDG PET has a major impact on the management of lymphoma patients, contributing to changes in clinical stage in 44% and changes in treatment in >60% of cases.


Subject(s)
Fluorodeoxyglucose F18 , Lymphoma/diagnostic imaging , Neoplasm Staging/methods , Radiopharmaceuticals , Adolescent , Adult , Aged , Female , Hodgkin Disease/diagnostic imaging , Hodgkin Disease/surgery , Hodgkin Disease/therapy , Humans , Image Interpretation, Computer-Assisted , Lymphoma/surgery , Lymphoma/therapy , Lymphoma, Non-Hodgkin/diagnostic imaging , Lymphoma, Non-Hodgkin/surgery , Lymphoma, Non-Hodgkin/therapy , Male , Middle Aged , Surveys and Questionnaires , Tomography, Emission-Computed , Whole-Body Counting
2.
J Nucl Med ; 42(4): 586-90, 2001 Apr.
Article in English | MEDLINE | ID: mdl-11337546

ABSTRACT

UNLABELLED: Whole-body PET imaging with 18F-FDG has been used successfully to stage colorectal cancer. However, the impact of FDG PET on patient management from the referring physician's point of view has not been determined. METHODS: A questionnaire was sent to referring physicians to determine whether and how PET altered the management of colorectal cancer patients. Management changes, when present, were classified as intermodality (e.g., medical to surgical, surgical to radiation, medical to no treatment) or intramodality (e.g., altered medical, surgical, or radiotherapy approach). RESULTS: Of 60 responses from referring physicians, changes in clinical stage were reported for 25 patients (42%). Among these, the disease was upstaged in 20 patients (80%) and downstaged in 5 patients (20%). The PET findings contributed to intermodality management changes in 22 of the 60 patients (37%), intramodality changes in 11 patients (18%), a combination of management changes in 4 patients (7%), and no change in 19 patients (32%). Two of the 60 patients (3%) had other changes, and no response to this question was received for the remaining 2 patients (3%). As a result of PET findings, physicians avoided major surgery in 41% of patients for whom surgery was the intended treatment. CONCLUSION: This survey-based study of referring physicians shows that FDG PET had a major impact on the management of colorectal cancer patients and contributed to changes in clinical stage and major management decisions in >40% of patients.


Subject(s)
Colorectal Neoplasms/diagnostic imaging , Fluorodeoxyglucose F18 , Radiopharmaceuticals , Tomography, Emission-Computed , Adult , Aged , Aged, 80 and over , Colorectal Neoplasms/pathology , Colorectal Neoplasms/therapy , Female , Humans , Male , Medicine , Middle Aged , Neoplasm Staging , Referral and Consultation , Specialization , Surveys and Questionnaires
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