Document Detail


Utility of TL-201 SPECT in clarifying false-positive FDG-PET findings due to osteoradionecrosis in head and neck cancer.
MedLine Citation:
PMID:  20848403     Owner:  NLM     Status:  In-Process    
Abstract/OtherAbstract:
BACKGROUND: This study aimed to determine whether Tl-201 single photon emission CT (SPECT) is potentially useful in differentiating false-positive fluorodeoxyglucose positron emission tomography (FDG-PET) findings caused by osteoradionecrosis (ORN) from recurrent head and neck cancer after radiotherapy.
METHODS: Five patients were recruited. Dual-phase FDG-PET and dual-phase Tl-201 SPECT were performed for each patient.
RESULTS: All 5 patients proved to have ORN without recurrent cancer. By visual interpretation, the results were 4 positive versus 1 negative for PET, and 4 negative versus 1 positive for Tl-201 SPECT. The Tl-201 SPECT clarified 3 of the 4 false-positive PETs to be ORN. Dual-phase semiquantitative studies showed decreased standardized uptake value (SUV) over time in 3 of the 4 false-positive PETs and decreased lesion/background ratio over time in the false-positive Tl-201 SPECT.
CONCLUSION: The Tl-201 SPECT may help clarify suspected false-positive FDG uptake caused by ORN. Dual-phase FDG-PET and dual-phase Tl-201 SPECT may also have some value.
Authors:
Chih-Hsiu Wang; Ji-An Liang; Hueisch-Jy Ding; Shih-Neng Yang; Kuo-Yang Yen; Shung-Shung Sun; Chia-Hung Kao
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Head & neck     Volume:  32     ISSN:  1097-0347     ISO Abbreviation:  Head Neck     Publication Date:  2010 Dec 
Date Detail:
Created Date:  2010-11-24     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8902541     Medline TA:  Head Neck     Country:  United States    
Other Details:
Languages:  eng     Pagination:  1648-54     Citation Subset:  IM    
Affiliation:
Department of Nuclear Medicine and PET Center, China Medical University Hospital, Taichung, Taiwan.
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