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Zheng W, Yan T, Liu D, Chen G, Wen Y, Rao X, Wang Y, Zheng H, Yang J, Peng H. Clinical evaluation of radiation-induced sinusitis by MRI-based scoring system in nasopharyngeal carcinoma patients. Radiat Oncol 2023; 18:153. [PMID: 37723540 PMCID: PMC10508027 DOI: 10.1186/s13014-023-02331-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2023] [Accepted: 08/08/2023] [Indexed: 09/20/2023] Open
Abstract
OBJECTIVE To explore the application of magnetic resonance imaging (MRI) in the evaluation of radiation-induced sinusitis (RIS), MRI-based scoring system was used to evaluate the development regularity, characteristics and influencing factors of RIS in nasopharyngeal carcinoma (NPC) patients. PATIENTS AND METHODS A retrospective analysis was performed by collecting the clinical and MRI data of 346 NPC patients to analyze the characteristics and prognosis of RIS. The predictive model was constructed according to the influencing factors of RIS. RESULTS (1) In the 2-year follow-up after radiotherapy (RT), there was significant change in L-M score in both groups of NPC patients (sinusitis before RT group: p = 0.000 vs. non-sinusitis before RT group: p = 0.000). After 6 months of RT, the L-M scores of the two groups tended to plateau (sinusitis before RT group: p = 0.311 vs. non-sinusitis before RT group: p = 0.469). (2) The prevalence of sinusitis in two groups of NPC patients (without or with sinusitis before RT) was 83% vs. 93%, 91% vs. 99%, 94% vs. 98% at 1, 6 and 24 months after RT, respectively. (3) In the patients without sinusitis before RT, the incidence of sinusitis in maxillary and anterior/posterior ethmoid, sphenoid and frontal sinuses was 87.1%, 90.0%/87.1%, 49.5%, 11.8% respectively, 1 month after RT. (4) A regression model was established according to the univariate and multivariate analysis of the factors related to RIS (smoking history: p = 0.000, time after RT: p = 0.008 and TNM staging: p = 0.040). CONCLUSION (1) RIS is a common complication in NPC patients after RT. This disorder progressed within 6 months after RT, stabilized and persisted within 6 months to 2 years. There is a high incidence of maxillary sinus and ethmoid sinus inflammation in NPC patients after RT. (2) Smoking history, time after RT and TNM staging were significant independent risk factors for RIS. (3) The intervention of the risk factors in the model may prevent or reduce the occurrence of RIS in NPC patients.
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Affiliation(s)
- Wenya Zheng
- Department of Otolaryngology, Head and Neck Surgery, General Hospital of Southern Theatre Command of PLA, Guangzhou, 510010, China
- The First School of Clinical Medicine, Southern Medical University, Guangzhou, 510515, China
| | - Tao Yan
- Department of Otolaryngology, Head and Neck Surgery, General Hospital of Southern Theatre Command of PLA, Guangzhou, 510010, China
- Department of Cardiology, General Hospital of Southern Theatre Command of PLA, Guangzhou, 510010, China
| | - Dongjiao Liu
- Department of Otolaryngology, Head and Neck Surgery, General Hospital of Southern Theatre Command of PLA, Guangzhou, 510010, China
| | - Geng Chen
- Department of Medical Imaging, General Hospital of Southern Theatre Command of PLA, Guangzhou, 510010, China
| | - Yingjuan Wen
- Department of Radiation Oncology, General Hospital of Southern Theatre Command of PLA, Guangzhou, 510010, China
| | - Xiuli Rao
- Department of Otolaryngology, Head and Neck Surgery, General Hospital of Southern Theatre Command of PLA, Guangzhou, 510010, China
| | - Yizhe Wang
- Department of Otolaryngology, Head and Neck Surgery, General Hospital of Southern Theatre Command of PLA, Guangzhou, 510010, China
- The First School of Clinical Medicine, Southern Medical University, Guangzhou, 510515, China
| | - Huijuan Zheng
- The First School of Clinical Medicine, Southern Medical University, Guangzhou, 510515, China
| | - Jiahong Yang
- The First School of Clinical Medicine, Southern Medical University, Guangzhou, 510515, China
| | - Hua Peng
- Department of Otolaryngology, Head and Neck Surgery, General Hospital of Southern Theatre Command of PLA, Guangzhou, 510010, China.
- The First School of Clinical Medicine, Southern Medical University, Guangzhou, 510515, China.
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Liu J, Luo K, Chang H, Sun B, Wu Z. Ultrahigh Spin Filter Efficiency, Giant Magnetoresistance and Large Spin Seebeck Coefficient in Monolayer and Bilayer Co-/Fe-/Cu-Phthalocyanine Molecular Devices. Nanomaterials (Basel) 2021; 11:2713. [PMID: 34685159 PMCID: PMC8538559 DOI: 10.3390/nano11102713] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/29/2021] [Revised: 10/09/2021] [Accepted: 10/11/2021] [Indexed: 11/16/2022]
Abstract
The spin related electrical and thermoelectric properties of monolayer and bilayer MPc (M = Co, Fe, Cu) molecular devices in a parallel spin configuration (PC) and an anti-parallel spin configuration (APC) between the V-shaped zigzag-edged graphene nanoribbon electrodes and the center bilayer MPc molecules are investigated by combining the density functional theory and non-equilibrium Green's function approaches. The results show that there is an ultrahigh spin filter efficiency exceeding 99.99995% and an ultra-large total conductance of 0.49996G0 for FePc-CoPc molecular devices in the PC and a nearly pure charge current at high temperature in the APC and a giant MR ratio exceeding 9.87 × 106% at a zero bias. In addition, there are pure spin currents for CuPc and FePc molecular devices in the PC, and an almost pure spin current for FePc molecular devices in the APC at some temperature. Meanwhile, there is a high SFE of about 99.99585% in the PC and a reserved SFE of about -19.533% in the APC and a maximum MR ratio of about 3.69 × 108% for the FePc molecular device. Our results predict that the monolayer and bilayer MPc (M = Co, Fe, Cu) molecular devices possess large advantages in designing high-performance electrical and spintronic molecular devices.
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Affiliation(s)
- Jianhua Liu
- Institute of Microelectronics of Chinese Academy of Sciences, Beijing 100029, China
- College of Microelectronics, University of Chinese Academy of Sciences, Beijing 100029, China
| | - Kun Luo
- Institute of Microelectronics of Chinese Academy of Sciences, Beijing 100029, China
- College of Microelectronics, University of Chinese Academy of Sciences, Beijing 100029, China
| | - Hudong Chang
- Institute of Microelectronics of Chinese Academy of Sciences, Beijing 100029, China
- College of Microelectronics, University of Chinese Academy of Sciences, Beijing 100029, China
| | - Bing Sun
- Institute of Microelectronics of Chinese Academy of Sciences, Beijing 100029, China
- College of Microelectronics, University of Chinese Academy of Sciences, Beijing 100029, China
| | - Zhenhua Wu
- Institute of Microelectronics of Chinese Academy of Sciences, Beijing 100029, China
- College of Microelectronics, University of Chinese Academy of Sciences, Beijing 100029, China
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