Differences of Energy Spectrum CT Findings between Small Cell Lung Cancer with Mediastinal Lymph Node Metastasis and Mediastinal Sarcoidosis.
10.3881/j.issn.1000-503X.12514
- Author:
Tuo MA
1
;
Li Xiu CAO
2
;
Hui Ju LI
2
;
Hong Liang REN
2
;
Da Peng CHEN
2
;
Yuan GAO
2
;
Zhi Dong LI
2
;
Xin Bin ZHAO
1
;
Si Qi DONG
3
Author Information
1. Department of CT,North China University of Science and Technology Affiliated Hospital,Tangshan,Heibei 063000,China.
2. Department of CT, Tangshan People's Hospital,Tangshan,Hebei 063000,China.
3. Medical Department,Tangshan People's Hospital,Tangshan,Hebei 063000,China.
- Publication Type:Journal Article
- Keywords:
energy spectrum CT;
metastatic lymph nodes;
sarcoidosis;
small cell lung cancer
- MeSH:
Humans;
Lung Neoplasms/diagnostic imaging*;
Lymph Nodes;
Lymphatic Metastasis;
Sarcoidosis/diagnostic imaging*;
Small Cell Lung Carcinoma/diagnostic imaging*;
Tomography, X-Ray Computed
- From:
Acta Academiae Medicinae Sinicae
2021;43(1):53-56
- CountryChina
- Language:Chinese
-
Abstract:
Objective To compare the differences of energy spectrum CT between small cell lung cancer(SCLC)with mediastinal lymph node metastasis and mediastinal sarcoidosis.Methods Twenty-five SCLC patients with mediastinal lymph node metastasis(SCLC group)and 26 patients with mediastinal sarcoidosis(sarcoidosis group)confirmed by bronchoscopy and biopsy in Tangshan People's Hospital from January 2018 to June 2019 were selected as the research objects.The CT value,iodine concentration,water concentration and energy spectrum curve slope under different single energy levels were compared between SCLC group and sarcoidosis group.Results The single-energy CT values of 40-80 keV segments in the arterial phase of the SCLC group were significantly higher than those in the sarcoidosis group(all P <0.05).The single-energy CT values of 90-140 keV segments were not significantly different from those in the sarcoidosis group(all P >0.05).The single-energy CT values of 40-90 keV segments in venous phase of the SCLC group were significantly higher than those of the sarcoidosis group(all P <0.05),and the single-energy CT values of 100-140 keV segments were not significantly different from those of the sarcoidosis group(all P >0.05).The concentrations of iodine in the arterial phase and venous phase of the SCLC group were(11.56±4.06)μg/cm
