Document Detail


Combined PET and low-dose, noncontrast CT scanning obviates the need for additional diagnostic contrast-enhanced CT scans in patients undergoing staging or restaging for lymphoma.
MedLine Citation:
PMID:  18550578     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
BACKGROUND: Positron emission tomography (PET) is more accurate than computed tomography (CT) in staging and restaging of lymphoma, but both are considered necessary. Increasingly, PET is carried out with a low-dose CT scan. Many patients undergo both PET/CT and standard diagnostic CT. The clinical utility of performing both studies in patients with lymphoma was evaluated. PATIENTS AND METHODS: Patients with lymphoma who underwent concurrent PET/CT and diagnostic CT (a scan pair) were identified, and findings detected in either scan but not both were documented. Discrepancies were considered significant if they were related to either lymphoma or another disease process which potentially required intervention. RESULTS: Eighty-seven scan pairs were identified. PET/CT detected additional lesions over diagnostic CT in 30 patients, of which 11 demonstrated increased clinical stage. Lymphoma therapy changed based on PET/CT in two patients, and one occult rectal cancer was detected. In contrast, diagnostic CT detected five relevant findings, including two incidental findings (venous thrombosis) and three patients with splenic lesions, none of which could be confirmed as lymphoma. No patient had change of stage or lymphoma therapy based on diagnostic CT. CONCLUSION: In our series, diagnostic CT did not add value to staging or restaging of lymphoma when carried out concurrently with PET/CT.
Authors:
R L Elstrom; J P Leonard; M Coleman; R K J Brown
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Publication Detail:
Type:  Journal Article; Research Support, N.I.H., Extramural     Date:  2008-06-10
Journal Detail:
Title:  Annals of oncology : official journal of the European Society for Medical Oncology / ESMO     Volume:  19     ISSN:  1569-8041     ISO Abbreviation:  Ann. Oncol.     Publication Date:  2008 Oct 
Date Detail:
Created Date:  2008-09-23     Completed Date:  2008-10-30     Revised Date:  2009-11-18    
Medline Journal Info:
Nlm Unique ID:  9007735     Medline TA:  Ann Oncol     Country:  England    
Other Details:
Languages:  eng     Pagination:  1770-3     Citation Subset:  IM    
Affiliation:
Division of Hematology-Oncology, Department of Medicine, Center for Lymphoma and Myeloma Weill Cornell Medical College and the New York Presbyterian Hospital, New York, NY, USA.
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MeSH Terms
Descriptor/Qualifier:
Fluorodeoxyglucose F18 / diagnostic use
Humans
Lymphoma / diagnosis*,  pathology,  radionuclide imaging
Neoplasm Staging
Positron-Emission Tomography / methods
Radiopharmaceuticals / diagnostic use
Retrospective Studies
Tomography, X-Ray Computed / methods
Grant Support
ID/Acronym/Agency:
K08 HL070827/HL/NHLBI NIH HHS
Chemical
Reg. No./Substance:
0/Radiopharmaceuticals; 63503-12-8/Fluorodeoxyglucose F18
Comments/Corrections

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