Document Detail


N stage disease in patients with non-small cell lung cancer: efficacy of quantitative and qualitative assessment with STIR turbo spin-echo imaging, diffusion-weighted MR imaging, and fluorodeoxyglucose PET/CT.
MedLine Citation:
PMID:  21926377     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
PURPOSE: To prospectively compare the diagnostic capability of short inversion time inversion-recovery (STIR) turbo spin-echo (SE) imaging, diffusion-weighted (DW) magnetic resonance (MR) imaging, and fluorodeoxyglucose (FDG) combined positron emission tomography (PET) and computed tomography (CT) in N stage assessment in patients with non-small cell lung cancer (NSCLC).
MATERIALS AND METHODS: This prospective study was approved by the institutional review board, and written informed consent was obtained from all patients. A total of 250 consecutive patients with NSCLC (136 men; mean age, 73 years; 114 women; mean age, 72 years) prospectively underwent pretherapeutic STIR turbo SE imaging, DW MR imaging, and FDG PET/CT, as well as surgical and pathologic examinations (N0 disease, n = 157; N1 disease, n = 72; N2 disease, n = 16; N3 disease, n = 5). Lymph node-to-saline ratio (LSR), lymph node-to-muscle ratio (LMR), apparent diffusion coefficient (ADC), maximal standardized uptake value (SUV(max)), and visual scoring were assessed for 135 metastatic lymph nodes and 135 randomly selected nonmetastatic lymph nodes. Receiver operating characteristic curve analysis was used to determine feasible threshold values. Diagnostic capabilities for N stage assessment were compared with the McNemar test on a per-patient basis.
RESULTS: When feasible, threshold values were used for quantitative assessment; sensitivity and accuracy of LSR and LMR (sensitivity, 82.8%; accuracy, 86.8%) proved to be significantly higher than those of ADC (sensitivity: 74.2%, P = .01; accuracy: 84.4%, P = .04) and SUV(max) (sensitivity: 74.2%, P = .01). For qualitative assessment, sensitivity of STIR turbo SE imaging (77.4%) was significantly higher than that of DW MR imaging (71.0%, P = .03) and FDG PET/CT (69.9%, P = .02).
CONCLUSION: Quantitative and qualitative assessments of N stage disease in patients with NSCLC obtained with STIR turbo SE MR imaging are more sensitive and/or more accurate than those obtained with DW MR imaging and FDG PET/CT. Supplemental material: http://radiology.rsna.org/lookup/suppl/doi:10.1148/radiol.11110281/-/DC1.
Authors:
Yoshiharu Ohno; Hisanobu Koyama; Takeshi Yoshikawa; Mizuho Nishio; Nobukazu Aoyama; Yumiko Onishi; Daisuke Takenaka; Sumiaki Matsumoto; Yoshimasa Maniwa; Wataru Nishio; Yoshihiro Nishimura; Tomoo Itoh; Kazuro Sugimura
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Publication Detail:
Type:  Comparative Study; Journal Article; Research Support, Non-U.S. Gov't     Date:  2011-09-16
Journal Detail:
Title:  Radiology     Volume:  261     ISSN:  1527-1315     ISO Abbreviation:  Radiology     Publication Date:  2011 Nov 
Date Detail:
Created Date:  2011-10-20     Completed Date:  2011-12-07     Revised Date:  2011-12-13    
Medline Journal Info:
Nlm Unique ID:  0401260     Medline TA:  Radiology     Country:  United States    
Other Details:
Languages:  eng     Pagination:  605-15     Citation Subset:  AIM; IM    
Copyright Information:
RSNA, 2011
Affiliation:
Department of Radiology, Kobe University Graduate School of Medicine, 7-5-2 Kusunoki-cho, Chuo-ku, Kobe 650-0017, Japan. yosirad@med.kobe-u.ac.jp
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MeSH Terms
Descriptor/Qualifier:
Aged
Carcinoma, Non-Small-Cell Lung / pathology*,  radionuclide imaging
Diffusion Magnetic Resonance Imaging
Female
Fluorodeoxyglucose F18 / diagnostic use
Humans
Lung Neoplasms / pathology*,  radionuclide imaging
Magnetic Resonance Imaging / methods*
Male
Neoplasm Staging
Positron-Emission Tomography and Computed Tomography / methods*
Prospective Studies
Radiopharmaceuticals / diagnostic use
Sensitivity and Specificity
Chemical
Reg. No./Substance:
0/Radiopharmaceuticals; 63503-12-8/Fluorodeoxyglucose F18

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