2013年8月
FDG-PET/CT assessment of misty mesentery: Feasibility for distinguishing viable mesenteric malignancy from stable conditions
EUROPEAN JOURNAL OF RADIOLOGY
- ,
- ,
- 巻
- 82
- 号
- 8
- 開始ページ
- E380
- 終了ページ
- E385
- 記述言語
- 英語
- 掲載種別
- 研究論文(学術雑誌)
- DOI
- 10.1016/j.ejrad.2013.03.016
- 出版者・発行元
- ELSEVIER IRELAND LTD
Purpose: "Misty mesentery" is a CT appearance of mesenteric fat changes with increased attenuation often existing with swelled mesenteric lymph nodes. We evaluated diagnostic performance of FDG-PET/CT in distinguishing viable malignant disorders from benign conditions in misty mesentery.
Materials and methods: 4236 FDG-PET/CT images were reviewed to identify patients with appearances of misty mesentery. Only the initial examinations were evaluated. Patients undergoing chemotherapy and/or radiotherapy within 3 months, patients with bulky mesenteric mass, and patients without follow-up examinations were excluded. Maximum short-axis diameter of mesenteric nodules (Diam-max) and maximum standardized uptake value (SUVmax) for mesenteric abnormalities were measured, and the diagnostic performance to differentiate between viable malignancy and stable lesions was assessed by receiver-operating characteristic (ROC) analysis, based on final diagnoses obtained by histology or follow-up examinations. Their significance was assessed by multivariate logistic regression.
Results: 71 studies met the inclusion criteria with confirmed diagnoses (13 viable malignancies; 58 stable lesions). Of the 13 malignant cases, 12 were lymphoma. ROC curves indicated an optimal Diam-max cut-off value of >10 mm and SUVmax cut-off of >= 3.0, with area under the curve of 0.961 and 0.926, respectively. Using the optimal Diam-max cut-off, sensitivity and specificity were 69% and 98%, respectively. Using the optimal SUVmax cut-off, they were 85% and 98%, respectively. The combination of either Diam-max >10 mm or SUVmax >= 3.0 had a sensitivity of 92%. Both Diam-max and SUVmax were significant independent factors for predicting malignancy.
Conclusions: FDG-PET/CT is feasible for identifying viable malignancy in misty mesentery. (C) 2013 Elsevier Ireland Ltd. All rights reserved.
Materials and methods: 4236 FDG-PET/CT images were reviewed to identify patients with appearances of misty mesentery. Only the initial examinations were evaluated. Patients undergoing chemotherapy and/or radiotherapy within 3 months, patients with bulky mesenteric mass, and patients without follow-up examinations were excluded. Maximum short-axis diameter of mesenteric nodules (Diam-max) and maximum standardized uptake value (SUVmax) for mesenteric abnormalities were measured, and the diagnostic performance to differentiate between viable malignancy and stable lesions was assessed by receiver-operating characteristic (ROC) analysis, based on final diagnoses obtained by histology or follow-up examinations. Their significance was assessed by multivariate logistic regression.
Results: 71 studies met the inclusion criteria with confirmed diagnoses (13 viable malignancies; 58 stable lesions). Of the 13 malignant cases, 12 were lymphoma. ROC curves indicated an optimal Diam-max cut-off value of >10 mm and SUVmax cut-off of >= 3.0, with area under the curve of 0.961 and 0.926, respectively. Using the optimal Diam-max cut-off, sensitivity and specificity were 69% and 98%, respectively. Using the optimal SUVmax cut-off, they were 85% and 98%, respectively. The combination of either Diam-max >10 mm or SUVmax >= 3.0 had a sensitivity of 92%. Both Diam-max and SUVmax were significant independent factors for predicting malignancy.
Conclusions: FDG-PET/CT is feasible for identifying viable malignancy in misty mesentery. (C) 2013 Elsevier Ireland Ltd. All rights reserved.
- リンク情報
- ID情報
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- DOI : 10.1016/j.ejrad.2013.03.016
- ISSN : 0720-048X
- eISSN : 1872-7727
- PubMed ID : 23619310
- Web of Science ID : WOS:000321496900013