1.Syndrome-Based Treatment Strategy for Hypertension Using the Method of Raising Yang and Promoting Descent
Xiaotong LYU ; Linping ZHU ; Jingshun YAN ; Zejun DU ; Xueying WU ; Zongpei XU
Journal of Traditional Chinese Medicine 2025;66(13):1345-1349
Guided by the theories of yin-yang and collateral disease, this paper identifies the dysregulation of yang qi ascent and descent as the core pathomechanism of hypertension. Based on clinical experience, a treatment approach centered on the method of raising yang and promoting descent was proposed. Clinically, three major syndrome types were identified. Firstly, deficiency of zong qi (ancestral qi) with blood stasis, obstruction of phlegm-turbidity and blood stasis, and hyperactivity of liver yang. Corresponding empirical formulation, Yizong Huoxue Decoction (益宗活血汤) was applied to tonify zong qi, invigorate blood, and raise yang. Secondly, Lizong Huoxue Decoction (理宗活血汤) was used to resolve phlegm, promote yang qi circulation, and regulate qi and blood. Thirdly, Qinggan Tongluo Decoction (清肝通络饮) was used to clear the liver, dredge collaterals, and subdue hyperactive yang. For special types such as non-dipper hypertension, time-specific syndrome differentiation and treatment can be applied based on a thorough understanding of the underlying pathomechanism, aiming to provide new insights into clinical diagnosis and treatment of hypertension.
2.Clinical Application and Mechanism of Buyang Huanwutang in Treatment of Chronic Heart Failure: A Review
Zejun DU ; Linping ZHU ; Xueying WU ; Xiaotong LYU ; Mei ZHAO ; Yuhong LI
Chinese Journal of Experimental Traditional Medical Formulae 2025;31(15):286-294
Chronic heart failure (CHF) is a complex clinical syndrome that the cardiac output is not enough to meet the metabolic needs of the body, or depends on the increase of filling pressure to compensate. Its high morbidity and mortality pose a serious threat to human health, necessitating attention and active intervention. At present, western medicine treatment of CHF is mainly based on diuretics, intravenous vasodilators, intravenous positive inotropic drugs, etc., which, however, have problems such as long medication cycles, serious side effects, and limited applicable population. Recent studies have shown that traditional Chinese medicine can act in a multi-pathway, multi-component, and multi-target manner, showing unique advantages in the prevention and treatment of CHF. Buyang Huanwutang has the effects of tonifying Qi, activating blood, and dredging collaterals. Clinical and mechanism studies have confirmed that this prescription is effective in treating CHF and its syndromes. The clinical studies can be classified into two categories. Studies of the first category use simple modern medical diagnostic criteria as the inclusion criteria for CHF patients, which can improve the scientificity and objectivity. Studies of the second category uses modern medicine combined with traditional Chinese medicine disease diagnostic criteria for the screening of CHF patients, which helps to improve the accuracy of efficacy evaluation. However, there are problems such as the lack of unified research standards and the insufficiency of mechanism research. In addition, the available studies remain to be classified or summarized. This study systematically sorted out the clinical and mechanism studies of Buyang Huanwutang in the treatment of CHF in recent years to review the research status. In clinical treatment, Buyang Huanwutang can be used alone, or modified, or combined with other prescriptions or Western medicine. The mechanism studies predict that Buyang Huanwutang can ameliorate CHF by regulating the calcium balance, protecting the mitochondrial structure and function, and regulating intestinal flora. This review aims to provide a theoretical basis and practical guidance for the clinical application and optimization and subsequent in-depth study of Buyang Huanwutang in the treatment of CHF.
3.Visualization analysis of research progress on carbapenem-resistant Gram-negative bacteria based on VOSviewer and CiteSpace
Xiaotong ZHANG ; Shu WANG ; Ce ZHANG ; Mengyao LYU ; Chengshuai YANG ; Qiuting WANG ; Caiyan ZHAO ; Chuan SHEN
Chinese Journal of Infectious Diseases 2025;43(4):219-231
Objective:Bibliometric analysis was performed to map scientific knowledge landscape, so that to explore the research status and future trends in the field of carbapenem-resistant Gram-negative bacteria (CRGNB) over the past decade.Methods:Literature on CRGNB published between January 1st, 2015 and December 31st, 2024 was retrieved from the China National Knowledge Internet (CNKI) database and Web of Science Core Collection (WoSCC). VOSviewer and CiteSpace were used for bibliometric analysis.Results:A total of 3 340 Chinese and 10 761 English publications were included in this study. The annual Chinese publications remained stable, while English publications exhibited a linear growth. It was anticipated that the English publications would decline in the forthcoming years, although remaining high. China contributed the highest number of publications, and Zhejiang University was the institution with the largest number of publications. Bonomo RA, Chen L, etc. were high-impact authors in the field of CRGNB and had formed a stable cooperative group. Antimicrobial Agents and Chemotherapy was the journal with the largest number of publications. High-frequency keywords in the domain of CRGNB were comprehensively categorized into four distinct clusters, including carbapenem resistance mechanisms and gene transmission, antimicrobial drugs and combination therapy, management of critically ill patients, and infections and colonization. It was imperative to acknowledge the significance of all of these research areas. Burst word analysis suggested that carbapenem-resistant Enterobacterales virulence genes as well as new isoforms of Klebsiella pneumoniae carbapenemase (KPC) had become a research hotspot. Conclusions:The issue of carbapenem resistance remains a significant concern. Current research focus on the resistance mechanisms and antimicrobial agents, highlighting its significant academic advancement and practical applications. Fostering international collaboration through academic exchanges between research teams worldwide is imperative to establish robust cooperative relationships, facilitate multidisciplinary cooperation, and promote high-quality research.
4.A comparative study of uncertainty in dose calibration on EBT4 and EBT3 films
Xiaotong WANG ; Yanchen YING ; Lyu HUANG ; Yangkang JIANG ; Long SUN ; Wenjie WU ; Binbing WANG
Chinese Journal of Radiation Oncology 2025;34(9):937-943
Objective:To compare the uncertainty of dose calibration systems between EBT4 and EBT3 films, and to evaluate the effectiveness and accuracy of EBT4 films in radiotherapy dose measurements.Methods:EBT4 and EBT3 films were irradiated with clinical 6 MV photon beams at doses ranging from 0 to 1,600 MU. Films were scanned after resting for 0 and 24 h to establish dose calibration functions based on net optical density. The dose uncertainties introduced by function fitting, dose resolution, film non-uniformity, scan repeatability, and scanner non-uniformity during calibration of the two films were obtained through experimental tests and mathematical calculations. Independent-sample t-tests were used to compare differences in fitting uncertainty and dose resolution between the two films, while homogeneity of variance tests were used to compare differences in film non-uniformity and scan repeatability. The combined total uncertainty was then calculated and compared. Finally, the total combined uncertainty was calculated by integrating all individual sources of uncertainty and compared between the two films. Results:Within the absorbed dose range of 1-12 Gy, EBT4 films exhibited significantly lower dose uncertainties from function fitting and dose resolution than EBT3 films at the same standing time ( P<0.01). No significant differences were observed between the two films in terms of non-uniformity and scan repeatability ( P>0.05). The total dose uncertainties of EBT4 and EBT3 films at 0 h standing were 5.65% and 7.87%, respectively, while the total uncertainties at 24 h standing were 4.73% and 6.33%, respectively. Overall, the dose calibration system of EBT4 films demonstrated consistently lower total uncertainty. Conclusion:Under identical conditions, EBT4 films demonstrate superior and more stable dose uncertainty compared with EBT3 films, thereby meeting the clinical requirements for radiation dose measurements with higher precision.
5.Diagnostic value of the vesical imaging-reporting and data system in bladder urothelial carcinoma with variant histology
Linjing JIANG ; Xiao YANG ; Lingkai CAI ; Qiang CAO ; Wei TIAN ; Xiaotong LIU ; Bo LIANG ; Meihua JIANG ; Gongcheng WANG ; Qiang SHAO ; Hongliang QUE ; Xuping JIANG ; Qiang LYU
Chinese Journal of Urology 2025;46(10):751-758
Objective:To evaluate the diagnostic value of the vesical imaging-reporting and data system(VI-RADS)for determining muscle invasion in variant histology urothelial carcinoma(VUC)of the bladder.Methods:A retrospective analysis was performed on the pathological and imaging data of 518 bladder cancer patients admitted to Jiangsu Province Hospital between January 2013 and January 2023. Patients were stratified into pure urothelial carcinoma(PUC)group( n = 457)and variant urothelial carcinoma(VUC)group( n = 61)based on the presence of histological variants. In the PUC group,there were 390 males(85.3%)and 67 females(14.7%),with a mean age of(66.9 ± 11.2)years. Tumor characteristics included maximum diameter ≥ 30 mm in 149(32.6%),< 30 mm in 308(67.4%),multiple tumors in 147(32.2%),solitary in 310(67.8%),pedunculated morphology in 143(31.3%)and non-pedunculated in 314(68.7%). Histological grading identified high-grade tumors in 319 patients(69.8%)and low-grade tumors in 138(30.2%). Pathological stage distribution included 191 of T a(41.8%),127 of T 1(27.8%),76 of T 2(16.6%),47 of T 3(10.3%),and 16 of T 4(3.5%)patients. The VUC group included 61 patients,comprising 51 males(83.6%)and 10 females(16.4%),with a mean age of(65.8 ± 11.4)years. Tumor characteristics were maximum diameter ≥ 30 mm in 38(62.3%),< 30 mm in 23(37.7%),multiple tumors in 16(26.2%),solitary in 45(73.8%),pedunculated morphology in 11(18.0%)and non-pedunculated in 50(82.0%). Histological grading identified high-grade tumors in 59 patients(96.7%)and low-grade tumors in 2(3.3%). Pathological stage distribution included 3 of T a(4.9%),15 of T 1(24.6%),15 of T 2(24.6%),20 of T 3(32.8%),and 8 of T 4(13.1%)patients. No statistically significant differences were found between the two groups in gender,age,or tumor multiplicity( P > 0.05). Statistically significant differences were found in pathological grade,pathological stage,maximum tumor diameter,and pedunculated morphology( P < 0.05). Furthermore,an external validation cohort of 278 bladder cancer patients treated between February 2023 and February 2024 from multiple centers(Jiangsu Provincial People’s Hospital,The First Affiliated Hospital of Zhengzhou University,Union Hospital Tongji Medical College Huazhong University of Science and Technology,Jiangsu Provincial Hospital of Traditional Chinese Medicine,Suzhou Municipal Hospital,Huaian First People’s Hospital,Yixing People’s Hospital)was retrospectively analyzed to externally validate the performance of VI-RADS scoring in predicting muscle invasion of VUC. This cohort included a PUC subgroup of 241 patients,comprising 196 males(81.3%)and 45 females(18.7%),with a mean age of(68.0 ± 10.7)years. Tumor characteristics were maximum diameter ≥ 30 mm in 85(35.3%),< 30 mm in 156(64.7%),multiple tumors in 65(27.0%),solitary in 176(73.0%),pedunculated morphology in 76(31.5%)and non-pedunculated in 165(68.5%). Histological grading identified high-grade tumors in 175 patients(72.6%)and low-grade tumors in 66(27.4%). Pathological staging comprised 107 patients of T a(44.4%),78 of T 1(32.4%),22 of T 2(9.1%),22 of T 3(9.1%),and 12 of T 4(5.0%). The VUC subgroup consisted of 37 patients,comprising 29 males(78.4%)and 8 females(21.6%),with a mean age of(70.5 ± 9.5)years. Tumor characteristics were maximum diameter ≥ 30 mm in 23(62.2%),< 30 mm in 14(37.8%),multiple tumors in 9(24.3%),solitary in 28(75.7%),pedunculated morphology in 7(18.9%)and non-pedunculated in 30(81.1%). Histological grading identified high-grade tumors in 36 patients(97.3%)and low-grade tumors in 1(2.7%). Pathological staging comprised 1 patient of T a(2.7%),9 of T 1(24.3%),7 of T 2(18.9%),19 of T 3(51.4%),and 1 of T 4(2.7%). In this validation cohort,no significant differences were found in gender,age,tumor multiplicity,or pedunculated morphology between the PUC and VUC subgroups( P > 0.05). Significant differences were observed in pathological grade,pathological stage,and maximum tumor diameter( P < 0.05). Three radiologists independently reviewed and scored the multiparametric MRI(mp-MRI)in a blinded manner. Inter-reader agreement was assessed using the weighted kappa statistic. Differences in variables between the two groups were compared using t-tests,chi-square tests,or Fisher’s exact test. The diagnostic performance of VI-RADS for muscle invasion in VUC and PUC was comprehensively evaluated using receiver operating characteristic(ROC)curves,the area under the curve(AUC),and cut-off values determined by the Youden’s index. The DeLong test was used to assess whether the diagnostic performance of VI-RADS differed between VUC and PUC. Results:In the retrospective single-center cohort,the AUC of VI-RADS for assessing muscle invasion was 0.895(95% CI 0.864?0.922)in the PUC group,with a cut-off value of > 3,and the AUC was 0.896(95% CI 0.791-0.960)in the VUC group,with a cut-off value of > 3. The difference between the two groups was not statistically significant( P = 0.986). Using a VI-RADS score > 3 as the cut-off value,the accuracy,sensitivity,specificity,positive predictive value(PPV),and negative predictive value(NPV)for diagnosing muscle invasion status in the PUC group were 85.8%(392/457),70.5%(98/139),92.5%(294/318),80.3%(98/122),and 87.8%(294/335),respectively. The corresponding values for the VUC group were 82.0%(50/61),76.7%(33/43),94.4%(17/18),97.1%(33/34),and 63.0%(17/27).In the retrospective multicenter cohort,the AUC of VI-RADS for assessing muscle invasion was 0.891(95% CI 0.845?0.927)in the PUC group,with a cut-off value of > 2,and the AUC was 0.898(95% CI 0.754?0.973)in the VUC group,with a cut-off value of > 3. The difference between the two groups was not statistically significant( P = 0.897). Using a VI-RADS score > 3 as the cut-off value,the accuracy,sensitivity,specificity,PPV,and NPV for diagnosing muscle invasion status in the PUC group were 85.9%(207/241),58.9%(33/56),94.1%(174/185),75.0%(33/44),and 88.3%(174/197),respectively. The corresponding values for the VUC group were 81.1%(30/37),77.8%(21/27),90.0%(9/10),95.5%(21/22),and 60.0%(9/15).In the single-center cohort,the Kappa values for inter-reader agreement in assessing muscle invasion status using VI-RADS were 0.881( P < 0.01)for the PUC group and 0.941( P < 0.01)for the VUC group among the three readers. In the multicenter cohort,the Kappa values were 0.858( P < 0.01)for the PUC group and 0.838( P < 0.01)for the VUC group. Conclusions:VI-RADS demonstrates similarly high diagnostic performance for assessing muscle invasion in both PUC and VUC,which is applicable for diagnosing muscle invasion status in VUC,and shows good inter-reader agreement.
6.Diagnostic value of the vesical imaging-reporting and data system in bladder urothelial carcinoma with variant histology
Linjing JIANG ; Xiao YANG ; Lingkai CAI ; Qiang CAO ; Wei TIAN ; Xiaotong LIU ; Bo LIANG ; Meihua JIANG ; Gongcheng WANG ; Qiang SHAO ; Hongliang QUE ; Xuping JIANG ; Qiang LYU
Chinese Journal of Urology 2025;46(10):751-758
Objective:To evaluate the diagnostic value of the vesical imaging-reporting and data system(VI-RADS)for determining muscle invasion in variant histology urothelial carcinoma(VUC)of the bladder.Methods:A retrospective analysis was performed on the pathological and imaging data of 518 bladder cancer patients admitted to Jiangsu Province Hospital between January 2013 and January 2023. Patients were stratified into pure urothelial carcinoma(PUC)group( n = 457)and variant urothelial carcinoma(VUC)group( n = 61)based on the presence of histological variants. In the PUC group,there were 390 males(85.3%)and 67 females(14.7%),with a mean age of(66.9 ± 11.2)years. Tumor characteristics included maximum diameter ≥ 30 mm in 149(32.6%),< 30 mm in 308(67.4%),multiple tumors in 147(32.2%),solitary in 310(67.8%),pedunculated morphology in 143(31.3%)and non-pedunculated in 314(68.7%). Histological grading identified high-grade tumors in 319 patients(69.8%)and low-grade tumors in 138(30.2%). Pathological stage distribution included 191 of T a(41.8%),127 of T 1(27.8%),76 of T 2(16.6%),47 of T 3(10.3%),and 16 of T 4(3.5%)patients. The VUC group included 61 patients,comprising 51 males(83.6%)and 10 females(16.4%),with a mean age of(65.8 ± 11.4)years. Tumor characteristics were maximum diameter ≥ 30 mm in 38(62.3%),< 30 mm in 23(37.7%),multiple tumors in 16(26.2%),solitary in 45(73.8%),pedunculated morphology in 11(18.0%)and non-pedunculated in 50(82.0%). Histological grading identified high-grade tumors in 59 patients(96.7%)and low-grade tumors in 2(3.3%). Pathological stage distribution included 3 of T a(4.9%),15 of T 1(24.6%),15 of T 2(24.6%),20 of T 3(32.8%),and 8 of T 4(13.1%)patients. No statistically significant differences were found between the two groups in gender,age,or tumor multiplicity( P > 0.05). Statistically significant differences were found in pathological grade,pathological stage,maximum tumor diameter,and pedunculated morphology( P < 0.05). Furthermore,an external validation cohort of 278 bladder cancer patients treated between February 2023 and February 2024 from multiple centers(Jiangsu Provincial People’s Hospital,The First Affiliated Hospital of Zhengzhou University,Union Hospital Tongji Medical College Huazhong University of Science and Technology,Jiangsu Provincial Hospital of Traditional Chinese Medicine,Suzhou Municipal Hospital,Huaian First People’s Hospital,Yixing People’s Hospital)was retrospectively analyzed to externally validate the performance of VI-RADS scoring in predicting muscle invasion of VUC. This cohort included a PUC subgroup of 241 patients,comprising 196 males(81.3%)and 45 females(18.7%),with a mean age of(68.0 ± 10.7)years. Tumor characteristics were maximum diameter ≥ 30 mm in 85(35.3%),< 30 mm in 156(64.7%),multiple tumors in 65(27.0%),solitary in 176(73.0%),pedunculated morphology in 76(31.5%)and non-pedunculated in 165(68.5%). Histological grading identified high-grade tumors in 175 patients(72.6%)and low-grade tumors in 66(27.4%). Pathological staging comprised 107 patients of T a(44.4%),78 of T 1(32.4%),22 of T 2(9.1%),22 of T 3(9.1%),and 12 of T 4(5.0%). The VUC subgroup consisted of 37 patients,comprising 29 males(78.4%)and 8 females(21.6%),with a mean age of(70.5 ± 9.5)years. Tumor characteristics were maximum diameter ≥ 30 mm in 23(62.2%),< 30 mm in 14(37.8%),multiple tumors in 9(24.3%),solitary in 28(75.7%),pedunculated morphology in 7(18.9%)and non-pedunculated in 30(81.1%). Histological grading identified high-grade tumors in 36 patients(97.3%)and low-grade tumors in 1(2.7%). Pathological staging comprised 1 patient of T a(2.7%),9 of T 1(24.3%),7 of T 2(18.9%),19 of T 3(51.4%),and 1 of T 4(2.7%). In this validation cohort,no significant differences were found in gender,age,tumor multiplicity,or pedunculated morphology between the PUC and VUC subgroups( P > 0.05). Significant differences were observed in pathological grade,pathological stage,and maximum tumor diameter( P < 0.05). Three radiologists independently reviewed and scored the multiparametric MRI(mp-MRI)in a blinded manner. Inter-reader agreement was assessed using the weighted kappa statistic. Differences in variables between the two groups were compared using t-tests,chi-square tests,or Fisher’s exact test. The diagnostic performance of VI-RADS for muscle invasion in VUC and PUC was comprehensively evaluated using receiver operating characteristic(ROC)curves,the area under the curve(AUC),and cut-off values determined by the Youden’s index. The DeLong test was used to assess whether the diagnostic performance of VI-RADS differed between VUC and PUC. Results:In the retrospective single-center cohort,the AUC of VI-RADS for assessing muscle invasion was 0.895(95% CI 0.864?0.922)in the PUC group,with a cut-off value of > 3,and the AUC was 0.896(95% CI 0.791-0.960)in the VUC group,with a cut-off value of > 3. The difference between the two groups was not statistically significant( P = 0.986). Using a VI-RADS score > 3 as the cut-off value,the accuracy,sensitivity,specificity,positive predictive value(PPV),and negative predictive value(NPV)for diagnosing muscle invasion status in the PUC group were 85.8%(392/457),70.5%(98/139),92.5%(294/318),80.3%(98/122),and 87.8%(294/335),respectively. The corresponding values for the VUC group were 82.0%(50/61),76.7%(33/43),94.4%(17/18),97.1%(33/34),and 63.0%(17/27).In the retrospective multicenter cohort,the AUC of VI-RADS for assessing muscle invasion was 0.891(95% CI 0.845?0.927)in the PUC group,with a cut-off value of > 2,and the AUC was 0.898(95% CI 0.754?0.973)in the VUC group,with a cut-off value of > 3. The difference between the two groups was not statistically significant( P = 0.897). Using a VI-RADS score > 3 as the cut-off value,the accuracy,sensitivity,specificity,PPV,and NPV for diagnosing muscle invasion status in the PUC group were 85.9%(207/241),58.9%(33/56),94.1%(174/185),75.0%(33/44),and 88.3%(174/197),respectively. The corresponding values for the VUC group were 81.1%(30/37),77.8%(21/27),90.0%(9/10),95.5%(21/22),and 60.0%(9/15).In the single-center cohort,the Kappa values for inter-reader agreement in assessing muscle invasion status using VI-RADS were 0.881( P < 0.01)for the PUC group and 0.941( P < 0.01)for the VUC group among the three readers. In the multicenter cohort,the Kappa values were 0.858( P < 0.01)for the PUC group and 0.838( P < 0.01)for the VUC group. Conclusions:VI-RADS demonstrates similarly high diagnostic performance for assessing muscle invasion in both PUC and VUC,which is applicable for diagnosing muscle invasion status in VUC,and shows good inter-reader agreement.
7.Visualization analysis of research progress on carbapenem-resistant Gram-negative bacteria based on VOSviewer and CiteSpace
Xiaotong ZHANG ; Shu WANG ; Ce ZHANG ; Mengyao LYU ; Chengshuai YANG ; Qiuting WANG ; Caiyan ZHAO ; Chuan SHEN
Chinese Journal of Infectious Diseases 2025;43(4):219-231
Objective:Bibliometric analysis was performed to map scientific knowledge landscape, so that to explore the research status and future trends in the field of carbapenem-resistant Gram-negative bacteria (CRGNB) over the past decade.Methods:Literature on CRGNB published between January 1st, 2015 and December 31st, 2024 was retrieved from the China National Knowledge Internet (CNKI) database and Web of Science Core Collection (WoSCC). VOSviewer and CiteSpace were used for bibliometric analysis.Results:A total of 3 340 Chinese and 10 761 English publications were included in this study. The annual Chinese publications remained stable, while English publications exhibited a linear growth. It was anticipated that the English publications would decline in the forthcoming years, although remaining high. China contributed the highest number of publications, and Zhejiang University was the institution with the largest number of publications. Bonomo RA, Chen L, etc. were high-impact authors in the field of CRGNB and had formed a stable cooperative group. Antimicrobial Agents and Chemotherapy was the journal with the largest number of publications. High-frequency keywords in the domain of CRGNB were comprehensively categorized into four distinct clusters, including carbapenem resistance mechanisms and gene transmission, antimicrobial drugs and combination therapy, management of critically ill patients, and infections and colonization. It was imperative to acknowledge the significance of all of these research areas. Burst word analysis suggested that carbapenem-resistant Enterobacterales virulence genes as well as new isoforms of Klebsiella pneumoniae carbapenemase (KPC) had become a research hotspot. Conclusions:The issue of carbapenem resistance remains a significant concern. Current research focus on the resistance mechanisms and antimicrobial agents, highlighting its significant academic advancement and practical applications. Fostering international collaboration through academic exchanges between research teams worldwide is imperative to establish robust cooperative relationships, facilitate multidisciplinary cooperation, and promote high-quality research.
8.A comparative study of uncertainty in dose calibration on EBT4 and EBT3 films
Xiaotong WANG ; Yanchen YING ; Lyu HUANG ; Yangkang JIANG ; Long SUN ; Wenjie WU ; Binbing WANG
Chinese Journal of Radiation Oncology 2025;34(9):937-943
Objective:To compare the uncertainty of dose calibration systems between EBT4 and EBT3 films, and to evaluate the effectiveness and accuracy of EBT4 films in radiotherapy dose measurements.Methods:EBT4 and EBT3 films were irradiated with clinical 6 MV photon beams at doses ranging from 0 to 1,600 MU. Films were scanned after resting for 0 and 24 h to establish dose calibration functions based on net optical density. The dose uncertainties introduced by function fitting, dose resolution, film non-uniformity, scan repeatability, and scanner non-uniformity during calibration of the two films were obtained through experimental tests and mathematical calculations. Independent-sample t-tests were used to compare differences in fitting uncertainty and dose resolution between the two films, while homogeneity of variance tests were used to compare differences in film non-uniformity and scan repeatability. The combined total uncertainty was then calculated and compared. Finally, the total combined uncertainty was calculated by integrating all individual sources of uncertainty and compared between the two films. Results:Within the absorbed dose range of 1-12 Gy, EBT4 films exhibited significantly lower dose uncertainties from function fitting and dose resolution than EBT3 films at the same standing time ( P<0.01). No significant differences were observed between the two films in terms of non-uniformity and scan repeatability ( P>0.05). The total dose uncertainties of EBT4 and EBT3 films at 0 h standing were 5.65% and 7.87%, respectively, while the total uncertainties at 24 h standing were 4.73% and 6.33%, respectively. Overall, the dose calibration system of EBT4 films demonstrated consistently lower total uncertainty. Conclusion:Under identical conditions, EBT4 films demonstrate superior and more stable dose uncertainty compared with EBT3 films, thereby meeting the clinical requirements for radiation dose measurements with higher precision.
9.The Chinese guideline for management of snakebites
Lai RONGDE ; Yan SHIJIAO ; Wang SHIJUN ; Yang SHUQING ; Yan ZHANGREN ; Lan PIN ; Wang YONGGAO ; Li QI ; Wang JINLONG ; Wang WEI ; Ma YUEFENG ; Liang ZIJING ; Zhang JIANFENG ; Zhou NING ; Han XIAOTONG ; Zhang XINCHAO ; Zhang MAO ; Zhao XIAODONG ; Zhang GUOQIANG ; Zhu HUADONG ; Yu XUEZHONG ; Lyu CHUANZHU
World Journal of Emergency Medicine 2024;15(5):333-355
In 2009,the World Health Organization included snakebite on the list of neglected tropical diseases,acknowledging it as a common occupational hazard for farmers,plantation workers,and others,causing tens of thousands of deaths and chronic physical disabilities every year.This guideline aims to provide practical information to help clinical professionals evaluate and treat snakebite victims.These recommendations are based on clinical experience and clinical research evidence.This guideline focuses on the following topics:snake venom,clinical manifestations,auxiliary examination,diagnosis,treatments,and prevention.
10.Certification system for health physics education in the United States: overview and implications for protection in radiation medicine in China
Wenjie WU ; Poman WU ; Xiaotong WANG ; Bo XUE ; Lyu HUANG ; Chiubong POON ; Yue NI ; Dannong RUAN ; Guoping SHAN
Chinese Journal of Radiological Medicine and Protection 2024;44(12):1083-1089
Based on the education and work experience in the radiotherapy and radiation protection industries in China and the United States, combined with comprehensive surveys into relevant websites and public materials of American health physics, this review introduces the education system of health physics and the certification system for health physicists in the United States. Furthermore, this paper provides a summary of the current status of academic education in radiation protection, the practical operations of radiation protection in medical institutions, and the staffing related to radiation safety in China. Accordingly, this study offers opinions and suggestions for further improving the disciplinary system of radiation protection in China.

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