Is SUVmax Helpful in the Differential Diagnosis of Enlarged Mediastinal Lymph Nodes? A Pilot Study
Joint Authors
Zhang, Yongxue
Lan, Xiaoli
Xia, Xiaotian
Sun, Xun
Qin, Chunxia
Yu, Congcong
Source
Contrast Media & Molecular Imaging
Issue
Vol. 2018, Issue 2018 (31 Dec. 2018), pp.1-9, 9 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2018-10-28
Country of Publication
Egypt
No. of Pages
9
Main Subjects
Abstract EN
Objective.
To explore the diagnostic value of maximum standard uptake value (SUVmax) from 18F-FDG PET/CT images in enlarged mediastinal lymph nodes of unknown etiology.
Methods.
We performed a retrospective study of patients with enlarged mediastinal lymph nodes on 18F-FDG PET/CT scans.
SUVmax and the short axis and long axis of lymph nodes were recorded.
These parameters were compared among the five commonest causes of mediastinal lymphadenopathy: lymphoma, metastatic disease, sarcoidosis, tuberculosis, and lymphadenitis.
Histopathologic diagnosis was recorded as the final golden standard.
Results.
A total of 94 patients (62 men and 32 women; age range 7–85 y) were included with final diagnoses of 42 patients with benign pathology and 52 patients with malignancies.
The sensitivity, specificity, and the accuracy of PET/CT in diagnosis of the benign and malignant mediastinal lymph nodes were 94.2%, 73.8%, and 85.1%, respectively.
The SUVmax of benign and malignant groups were 13.10 ± 5.21 and 12.59 ± 5.50, respectively, which had no statistical difference (P>0.05).
However, the long axis and the short axis of lymph nodes in the benign and malignant groups were 2.86 ± 1.02 cm, 1.77 ± 0.60 cm and 6.04 ± 3.83 cm, 3.95 ± 2.08 cm, respectively (P<0.05).
The diagnostic values of PET/CT were higher than those of the long or short axis.
However, the specificity of PET/CT was lower (73.8%) than that from the long or short axis (90.5% and 92.9%, respectively), although no statistical difference existed.
Among the five common causes of mediastinal lymphadenopathy, significant differences could be seen in SUVmax and in the long axis and the short axis of lymph nodes (P<0.05).
Conclusions.
SUVmax, a commonly used semiquantitative measurement, was not helpful for differentiation between benign and malignant lesions in patients with enlarged mediastinal lymph nodes in this study.
Many benign lesions, such as sarcoidosis and tuberculosis, had high FDG uptake, possibly a trend that the size of the lymph nodes seems to have some diagnostic value.
American Psychological Association (APA)
Yu, Congcong& Xia, Xiaotian& Qin, Chunxia& Sun, Xun& Zhang, Yongxue& Lan, Xiaoli. 2018. Is SUVmax Helpful in the Differential Diagnosis of Enlarged Mediastinal Lymph Nodes? A Pilot Study. Contrast Media & Molecular Imaging،Vol. 2018, no. 2018, pp.1-9.
https://search.emarefa.net/detail/BIM-1131358
Modern Language Association (MLA)
Yu, Congcong…[et al.]. Is SUVmax Helpful in the Differential Diagnosis of Enlarged Mediastinal Lymph Nodes? A Pilot Study. Contrast Media & Molecular Imaging No. 2018 (2018), pp.1-9.
https://search.emarefa.net/detail/BIM-1131358
American Medical Association (AMA)
Yu, Congcong& Xia, Xiaotian& Qin, Chunxia& Sun, Xun& Zhang, Yongxue& Lan, Xiaoli. Is SUVmax Helpful in the Differential Diagnosis of Enlarged Mediastinal Lymph Nodes? A Pilot Study. Contrast Media & Molecular Imaging. 2018. Vol. 2018, no. 2018, pp.1-9.
https://search.emarefa.net/detail/BIM-1131358
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1131358