Journal of nuclear medicine : official publication, Society of Nuclear Medicine
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Comparative Study
Prognostic value of PET using 18F-FDG in Hodgkin's disease for posttreatment evaluation.
Detection of relapse after completion of therapy in patients with Hodgkin's disease (HD) and non-Hodgkin's lymphomas (NHL) constitutes an important challenge in modern medical imaging. An accurate assessment of the presence of residual disease is essential to determine which patients would benefit from additional therapy. The objective of this study was to assess the diagnostic accuracy of (18)F-FDG PET in detecting residual disease or relapse during the posttherapy period in patients with HD in comparison with CT. We also established different predictive values for (18)F-FDG PET according to the time interval between the end of therapy and the PET study. ⋯ Positive (18)F-FDG PET after the end of therapy in HD patients is a strong predictor of relapse. A negative PET study is also an excellent predictor of good prognosis. The diagnostic accuracy of (18)F-FDG PET to assess the presence of residual disease after therapy is superior to that of CT.
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Comparative Study
Nonvisualization of axillary sentinel node during lymphoscintigraphy: is there a pathologic significance in breast cancer?
The aim of this study was to define the factors associated with nonvisualization of a sentinel node (SN) in the axilla area during preoperative lymphoscintigraphy. ⋯ Patients with unsuccessful axillary mapping have an increased risk for axillary involvement.