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Your search keyword '"WANG De, Jun"' showing total 2 results
Start Over Author "WANG De, Jun" Topic statistical correlation
2 results on '"WANG De, Jun"'

1. Impact of Plasma Epstein-Barr Virus-DNA and Tumor Volume on Prognosis of Locally Advanced Nasopharyngeal Carcinoma.

Author

Chen, Meng, Yin, Li, Wu, Jing, Gu, Jia-Jia, Jiang, Xue-Song, Wang, De-Jun, Zong, Dan, Guo, Chang, Zhu, Huan-Feng, Wu, Jian-Feng, He, Xia, and Guo, Wen-Jie

Subjects
NASOPHARYNX tumors, STATISTICAL correlation, DNA, EPSTEIN-Barr virus, STATISTICS, SURVIVAL, RETROSPECTIVE studies, DATA analysis software, DESCRIPTIVE statistics, KAPLAN-Meier estimator, LOG-rank test, PROGNOSIS
Abstract

This retrospective study aims to examine the association of plasma Epstein-Barr virus- (EBV-) DNA levels with the tumor volume and prognosis in patients with locally advanced nasopharyngeal carcinoma (NPC). A total of 165 patients with newly diagnosed locally advanced NPC were identified from September 2011 to July 2012. EBV-DNA was detected using fluorescence quantitative polymerase chain reaction (PCR) amplification. The tumor volume was calculated by the systematic summation method of computer software. The median copy number of plasma EBV-DNA before treatment was 3790 copies/mL. The median gross tumor volume of the primary nasopharyngeal tumor (GTVnx), the lymph node lesions (GTVnd), and the total GTV before treatment were 72.46, 23.26, and 106.25 cm3, respectively; the EBV-DNA levels were significantly correlated with the GTVnd and the total GTV (P<0.01). The 2-year overall survival (OS) rates in patients with positive and negative pretreatment plasma EBV-DNA were 100% and 98.4% (P=1.000), and the disease-free survival (DFS) rates were 94.4% and 80.8% (P=0.044), respectively. These results indicate that high pretreatment plasma EBV-DNA levels in patients with locally advanced NPC are associated with the degree of lymph node metastasis, tumor burden, and poor prognosis. [ABSTRACT FROM AUTHOR]

Published
2015
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2. A Robust Separating and Tracking Method on Two Wideband Sources by Subspace Rotation with One Vector Hydrophone.

Author

Wang, De-jun and Li, Feng-hua

Subjects
*BROADBAND communication systems, *ROBUST control, *VECTOR fields, *HYDROPHONE, *STATISTICAL correlation, *SIGNAL processing, *SIMULATION methods & models, *SIGNAL-to-noise ratio, *UNDERWATER acoustics
Abstract

It has been proved theoretically that two incompletely correlated sources can be identified by linear signal processing methods. However, it is difficult in practice. A new method to separate two wideband sources with one vector sensor is presented in this paper. The method is the combination of subspace rotation and spatial matched filter. Simulations show that this method is insensitive to the initial azimuth error, independent of signal spectrum, and better man wideband focusing subspace methods at low SNR. The sea trial is performed and the experiment results show that the proposed method is effective to separate and track two wideband sources in the underwater environment. [ABSTRACT FROM AUTHOR]

Published
2010
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