Document Detail


Diagnostic performance of CT, PET, side-by-side, and fused image interpretations for restaging of non-Hodgkin lymphoma.
MedLine Citation:
PMID:  17581717     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
OBJECTIVE: The purpose of this study was to compare the diagnostic performance of positron emission tomography (PET) alone, computed tomography (CT) alone, side-by-side reading, and fused images for restaging or follow-up of patients with malignant lymphoma. METHODS: Fifty patients with histologically confirmed non-Hodgkin lymphoma underwent an (18)fluoro-2-deoxyglucose (FDG)-PET scan, followed by a CT scan. CT alone, PET alone, side-by-side reading, and fused images were interpreted separately and visually using a five-point grading scale for the following eight regions: cervical, supraclavicular, axillary, mediastinal, para-aortic to iliac, mesenteric, inguinal, and extra-nodal. Diagnostic accuracy was compared on the basis of the final diagnoses determined by histological confirmation and/or clinical course. RESULTS: For all regions combined, the interpretation of PET alone (sensitivity = 86.1%, specificity = 99.4%, accuracy = 91.0%), side-by-side reading (96.0%, 99.4%, 98.9%), and fused images (98.0%, 99.4%, 99.2%) yielded significantly higher diagnostic performance than that of CT alone (59.4%, 96.1%, 91.0%; P < 0.001). The cervical, supraclavicular, and extra-nodal regions were more accurately diagnosed with PET (P < 0.05), whereas the para-aortic to iliac regions were diagnosed more accurately with side-by-side reading and fused images than with CT alone or PET alone (P < 0.05). CONCLUSIONS: Although fused images are clinically valuable, side-by-side reading showed equivalent performance, whereas the interpretation of PET alone yielded reasonably high diagnostic performance for restaging or follow-up of patients with malignant lymphoma.
Authors:
Munenobu Nogami; Yuji Nakamoto; Setsu Sakamoto; Kazuto Fukushima; Tomohisa Okada; Tsuneo Saga; Tatsuya Higashi; Michio Senda; Toshimitsu Matsui; Kazuro Sugimura
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Publication Detail:
Type:  Journal Article     Date:  2007-06-25
Journal Detail:
Title:  Annals of nuclear medicine     Volume:  21     ISSN:  0914-7187     ISO Abbreviation:  Ann Nucl Med     Publication Date:  2007 Jun 
Date Detail:
Created Date:  2007-06-21     Completed Date:  2007-08-09     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8913398     Medline TA:  Ann Nucl Med     Country:  Japan    
Other Details:
Languages:  eng     Pagination:  189-96     Citation Subset:  IM    
Affiliation:
Department of Radiology, Kobe University Graduate School of Medicine, 7-5-2 Kusunoki-cho, Chuo-ku, Kobe 650-0017, Japan. aznogami@med.kobe-u.ac.jp
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MeSH Terms
Descriptor/Qualifier:
Adult
Aged
Brain / pathology
False Positive Reactions
Female
Humans
Image Processing, Computer-Assisted / methods*
Lymphoma, Non-Hodgkin / diagnosis*,  pathology*,  radiography
Male
Middle Aged
Models, Statistical
Neoplasm Staging / methods*
Positron-Emission Tomography / methods*
Reproducibility of Results
Sensitivity and Specificity
Tomography, X-Ray Computed / methods*

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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