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Prostate cancer detection upon transrectal ultrasound-guided biopsy in relation to digital rectal examination and prostate-specific antigen level： what to expect in the Chinese population？

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Asian Journal of Andrology 2015年第5期17卷 821-825,I0010页

作者： Jeremy YC Teoh Steffi KK Yuen James HL Tsu Charles KW Wong Brian SH Ho ada tl ng Wai-Kit Ma Kwan-Lun Ho Ming-Kwong Yiu Department of Surgery Division of Urology Queen Mary Hospital University of Hong Kong Hong Kong China

We investigated the prostate cancer detection rates upon transrectal ultrasound （TRUS）-guided biopsy in relation to digital rectal examination （DRE） and prostate-specific antigen （PSA）, and risk factors of prostate cancer detection in the Chinese population. Data from all consecutive Chinese men who underwent first TRUS-guided prostate biopsy from year 2000 to 2013 was retrieved from our database. The prostate cancer detection rates with reference to DRE finding and PSA level of 〈 4, 4-10, 10.1-20, 20.1-50 and 〉 50 ng ml^-1 were investigated. Multivariate logistic regression analyses were performed to investigate for potential risk factors of prostate cancer detection. A total of 2606 Chinese men were included. In patients with normal DRE, the cancer detection rates were 8.6%, 13.4%, 21.8%, 41.7% and 85.2% in patients with PSA 〈 4, 4-10, 10.1-20, 20.1-50 and 〉 50 ng ml^-1 respectively. In patients with abnormal DRE, the cancer detection rates were 12.4%, 30.2%, 52.7%, 80.6% and 96.4% in patients with PSA 〈 4, 4-10, 10.1-20, 20.1-50 and 〉 50 ng m1-1 respectively. Older age, smaller prostate volume, larger number of biopsy cores, presence of abnormal DRE finding and higher PSA level were associated with increased risk of prostate cancer detection upon multivariate logistic regression analyses （P 〈 0.001）. Chinese men appeared to have lower prostate cancer detection rates when compared to the Western population. Taking the different risk factors into account, an individualized approach to the decision of TRUS-guided biopsy can be adopted.

关键词： Chinese digital rectal examination prostate biopsy prostate cancer prostate-specific antigen

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The performance characteristics of prostate-specific antigen and prostate-specific antigen density in Chinese men

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Asian Journal of Andrology 2017年第1期19卷 113-116页

作者： Jeremv YC Teoh Steffi KK Yuen James HL Tsu Charles KW Wong Brian SH Ho ada tl ng Wai-Kit Ma Kwan-Lun Ho Ming-Kwong Yiu Division of Urology Department of Surgery Queen Mary Hospital University of Hong Kong Hong Kong China

We investigated the performance characteristics of prostate-specific antigen （PSA） and PSA density （PSAD） in Chinese men. All Chinese men who underwent transrectal ultrasound-guided prostate biopsy （TRUS-PB） from year 2000 to 2013 were included. The receiver operating characteristic （ROC） curves for both PSA and PSAD were analyzed. The sensitivity, specificity, positive predictive value （PPV） and negative predictive value （NPV） at different cut-off levels were calculated. A total of 2606 Chinese men were included. For the ROC, the area under curve was 0.770 for PSA （P〈 0.001） and 0.823 for PSAD （P〈 0.001）. PSA of 4.5 ng ml^-1 had sensitivity of 94.4%, specificity of 14.1%, PPV of 29.5%, and NPV of 86.9%; PSAD of 0.12 ng ml^-1cc^-1 had sensitivity of 94.5%, specificity of 26.6%, PPV of 32.8%, and NPV of 92.7%. On multivariate logistic regression analyses, PSA cut-off at 4.5 ng ml^-1 （OR 1.61, 95% CI 1.05-2.45, P = 0.029） and PSAD cut-off at 0.12 ng ml^-1 cc^-1 （OR 6.22, 95% CI 4.20-9.22, P 〈 0.001） were significant predictors for prostate cancer detection on TRUS-PB. In conclusion, the performances of PSA and PSAD at different cut-off levels in Chinese men were very different from those in Caucasians. PSA of 4.5 ng ml^-1 and PSAD of O. 12 ng ml^-1 cc^-1 had near 95% sensitivity and were significant predictors of prostate cancer detection in Chinese men.

关键词： Chinese prostate cancer transrectal ultrasound-guided prostate biopsy prostate-specific antigen prostate-specific antigen density

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Multiparametric magnetic resonance imaging/transrectal ultrasound fusion prostate biopsy with semi-robotic navigation in the Chinese population： initial results

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Asian Journal of Andrology 2018年第1期20卷 93-94页

作者： Wai Kit Ma Brian SH HO Andrew SH Lai Ka Cheong Lam Yun Sang Chan Lawrance KC Yip ada tl ng James HL Tsu Ming Kwong Yiu Division of Urology Department of Surgery The University of Hong Kong Queen Mary Hospital Hong Kong China Department of Diagnostic Radiology The University of Hong Kong Queen Mary Hospital Hong Kong China

Dear Editor, The current standard 12-core systematic transrectal ultrasound （TRUS）-guided biopsy in prostate cancer diagnosis has the disadvantages of overdetecting indolent tumors, while failing to identify clinically significant cancers in up to 35%.1 Advances in imaging techniques, notably the multiparametric magnetic resonance imaging （mpMRI）, allow clinically significant prostate cancers to be detected with more precise localization） Fusion of MRI and real-time TRUS enables targeted biopsy of suspicious lesions, overcoming human error, and inability of biopsy site tracking in cognitive fusion？ Multiple Western series have suggested a higher detection rate, higher specificity, and better risk stratification with fusion biopsy.

关键词： magnetic resonance imaging cancer diagnosis

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Rabeprazole vs esomeprazole in non-erosive gastro-esophageal reflux disease: A randomized, double-blind study in urban Asia

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World Journal of Gastroenterology 2005年第20期11卷 3091-3098页

作者： KM Fock EK Teo tl Ang TS Chua TM ng YL Tan Division of Gastroenterology Department of Medicine Changi General Hospital Singapore

AIM：Gastro-esophageal reflux disease (GERD) is becoming increasingly common in Asia. Data on the efficacy of proton pump inhibitors in patients with non-erosive GERD (NERD)in Asia is lacking. This double-blind study compared the efficacy and safety of rabeprazole with esomeprazole in relief of symptoms in patients with ***: One hundred and thirty-four patients with reflux symptoms of NERD and normal endoscopy were randomized to receive rabeprazole 10 mg or esomeprazole 20 mg once daily for 4 wk. Symptoms were recorded in a diary and changes in severity of symptoms ***: At 4 wk of treatment, rabeprazole 10 mg and esomeprazole 20 mg were comparable with regards to the primary endpoint of time to achieve 24-h symptomfree interval for heartburn 8.5 d vs9 d and regurgitation 6 d vs 7.5 d. Rabeprazole and esomeprazole were also similarly efficacious in term of patient's global evaluation with 96% of patients on rabeprazole and 87.9% of patients on esomeprazole, reporting that symptoms improved(P=NS). Satisfactory relief of day- and night-time symptoms was achieved in 98% of patients receiving rabeprazole and 81.4% of patients receiving esomeprazole. Adverse events were comparable in both groups (P = NS).CONCLUSION: Rabeprazole 10 mg has a similar efficacy and safety profile in Asians with NERD as esomeprazole 20 mg. Further study is necessary to investigate whether the small differences between the two drugs seen in this study are related to the improved pharmacodynamicpro perties of rabeprazole. Both drugs were well tolerated.

关键词： Non-erosive esophageal reflux disease New proton pump inhibitors

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MODELIng COMMERCIAL PROCESSES AND CUSTOMER BEHAVIORS TO ESTIMATE THE DIFFUSION RATE OF NEW PRODUCTS

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Journal of Systems Science and Systems Engineering 2005年第4期14卷 436-453页

作者： Alain BLOCH Daniel KROB ada Suk-Fung ng Chaire Action Commerciale et Distribution Conservatoire National des Arts et Métiers 40 rue des Je■neurs 75002 Paris France Laboratoire d'Informatique de l'Ecole Polytechnique Ecole Polytechnique & CNRS 91128 Palaiseau Cedex France Department of Transportation & Logistics Malaysia University of Science and Technology Kelana Square Kelana Jaya 47301 Petaling Jaya Selangor Malaysia

This paper presents a generic mathematical model for depicting the diffusion of an innovative product on a given market. Our approach relies on a probabilistic modeling of each customer behavior with respect to the commercial process which is used to promote such a product. We introduce in particular the concept of coherent market that corresponds to a market which can be analyzed in a uniform way within our model. This last notion allows us to recover the classical empirical results that were discovered and widely studied by E.M. Rogers and his school. We explain finally how to use our approach as a support for analytic predictive marketing.

关键词： Analytic marketing coherent market commercial process customer behavior diffusion of innovations Markovian model probabilistic modeling waiting time

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我国物流企业生产效率与规模效率

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系统工程理论与实践 2009年第4期29卷 34-42页

作者：邓学平王旭 ada Suk Fung ng 重庆大学机械工程学院重庆400030 重庆大学贸易与行政学院重庆400030 悉尼大学运输与物流研究中心

首先利用DEA CCR/BCC模型对我国在沪深港证券市场上市的55家物流企业的生产效率和规模效率进行实证比较分析,然后通过相关性分析及多项回归分析研究了规模效率及固定资产规模与生产效率的关系.结果表明:1)大型物流企业相对中小型物流企... 详细信息

首先利用DEA CCR/BCC模型对我国在沪深港证券市场上市的55家物流企业的生产效率和规模效率进行实证比较分析,然后通过相关性分析及多项回归分析研究了规模效率及固定资产规模与生产效率的关系.结果表明:1)大型物流企业相对中小型物流企业而言并不具备显著的效率优势.2)我国物流企业不存在显著的规模效率差异,不应盲目追求资产规模的扩张和重组.3)我国物流企业的纯技术效率大于规模效率对生产效率的影响,物流企业的技术改进比规模扩张更具重要性.4)物流企业生产成本是影响企业生产效率的主要因素,而资产规模和职工工资对生产效率没有显著影响.

关键词： DEA 物流企业生产效率规模效率

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Prostate health index can stratify patients with Prostate Imaging Reporting and Data System score 3 lesions on magnetic resonance imaging to reduce prostate biopsies

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Asian Journal of Andrology 2024年第1期26卷 20-24页

作者： John Shung-Lai Leung Wai-Kit Ma Brian Sze-Ho Ho Stacia Tsun-Tsun Chun Rong Na Yongle Zhan Chi-Yuen ng Chi-Ho Ip ada Tsui-Lin ng Yiu-Chung Lam Division of Urology Department of SurgeryQueen Mary HospitalUniversity of Hong KongHong KongChina Division of Urology Department of SurgeryPrincess Margaret HospitalHongKongChina

We aim to evaluate prostate health index as an additional risk-stratification tool in patients with Prostate Imaging Reporting and Data System score 3 lesions on multiparametric magnetic resonance *** with biochemical or clinical suspicion of having prostate cancer who underwent multiparametric magnetic resonance imaging in two tertiary centers(Queen Mary Hospital and Princess Margaret Hospital,Hong Kong,China)between January 2017 and June 2022 were ***-magnetic resonance imaging fusion biopsies were performed after prostate health index *** who only had Prostate Imaging Reporting and Data System score 3 lesions were further stratified into four prostate health index risk groups and the cancer detection rates were *** of the 747 patients,47.3%had Prostate Imaging Reporting and Data System score 3 lesions *** detection rate of clinically significant prostate cancer in this group was 15.0%.The cancer detection rates of clinically significant prostate cancer had statistically significant differences:5.3%in prostate health indexng the patients,26.9%could have avoided a biopsy with a prostate health indexng clinically significant prostate *** health index could be used as an additional risk stratification tool for patients with Prostate Imaging Reporting and Data System score 3 *** could be avoided in patients with low prostate health index,with a small risk of missing clinically significant prostate cancer.

关键词： biopsy fusion biopsy magnetic resonance imaging prostate cancer prostate health index

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我国物流企业生产效率发展分析

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系统工程理论与实践 2009年第5期29卷 27-36页

作者：邓学平王旭 ada Suk Pungng 重庆大学机械工程学院重庆400030 重庆大学贸易与行政学院重庆400030 悉尼大学运输与物流研究中心新南威尔士州2042

为分析我国物流企业生产效率的发展状况,利用DEA CCR模型和Window Analysis技术对我国18家物流企业在2001-2006年间的生产效率进行发展分析.通过分析发现:1)我国物流市场缺乏有效的市场淘汰机制,物流企业生产效率的个体差异显著;2)我国... 详细信息

为分析我国物流企业生产效率的发展状况,利用DEA CCR模型和Window Analysis技术对我国18家物流企业在2001-2006年间的生产效率进行发展分析.通过分析发现:1)我国物流市场缺乏有效的市场淘汰机制,物流企业生产效率的个体差异显著;2)我国港口经营类企业的平均生产效率高于运输仓储类企业的平均生产效率;3)我国物流企业整体生产效率水平较低,但在所研究的时间内呈稳定且上升的发展状态.

关键词：物流企业生产效率数据包络分析(DEA) Window Analysis

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我国物流企业全要素生产效率分析

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系统工程 2008年第6期26卷 1-9页

作者：邓学平王旭 ada Suk Fung ng 林云重庆大学机械工程学院重庆400030 重庆大学贸易与行政学院重庆400030 悉尼大学运输与物流研究中心(澳大利亚重点研究中心)

为分析我国物流企业生产效率的发展情况，本文以我国8家上市物流企业为例，利用DEA Malmqulst生产效率变化指数对它们在2001-2006年的全要素生产效率进行分析。通过分析发现，我国物流企业的生产效率发展趋势较好，呈上升状态，但上升... 详细信息

为分析我国物流企业生产效率的发展情况，本文以我国8家上市物流企业为例，利用DEA Malmqulst生产效率变化指数对它们在2001-2006年的全要素生产效率进行分析。通过分析发现，我国物流企业的生产效率发展趋势较好，呈上升状态，但上升程度并不明显，其中技术效率和技术有所下滑，而规模效率则有所上升。同时结合了企业组织形式、资源配置及发展战略等内部因素和国内外经济发展环境、国家产业发展政策与法规等外部因素对各个企业和它们的整体生产效率发展过程进行了分析和说明，提出了解决我国物流企业生产效率偏低的途径，为政府决策者和物流企业管理者提供了科学决策的依据。

关键词：物流企业DEA Malmquist指数全要素生产效率

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Outcomes of radical prostatectomy in a 20-year localized prostate cancer single institution series in China

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Asian Journal of Andrology 2023年第3期25卷 345-349页

作者： Xiao-Hao Ruan Tsun Tsun Stacia Chun Da Huang Hoi-Lung Wong Brian Sze-Ho Ho Chiu-Fung Tsang Terence Chun-Ting Lai ada Tsui-Lin ng Rong Na James Hok-Leung Tsu Division of Urology Department of SurgeryThe University of Hong KongHong KongChina Department of Urology Ruijin HospitalShanghai Jiao Tong University School of MedicineShanghai 200025China Division of Urology Department of SurgeryQueen Mary HospitalHong KongChina

The long-term survival outcomes of radical prostatectomy(RP)in Chinese prostate cancer(PCa)patients are poorly *** conducted a single-center,retrospective analysis of patients undergoing RP to study the prognostic value of pathological and surgical *** April 1998 to February 2022,782 patients undergoing RP at Queen Mary Hospital of The University of Hong Kong(Hong Kong,China)were included in our *** Cox regression analysis and Kaplan–Meier analysis with stratification were *** 5-year,10-year,and 15-year overall survival(OS)rates were 96.6%,86.8%,and 70.6%,respectively,while the 5-year,10-year,and 15-year PCa-specific survival(PSS)rates were 99.7%,98.6%,and 97.8%,*** International Society of Urological Pathology PCa grades(ISUP Grade Group)≥4 was significantly associated with poorer PSS(hazard ratio[HR]=8.52,95%confidence interval[CI]:1.42–51.25,P=0.02).Pathological T3 stage was not significantly associated with PSS or OS in our *** node invasion and extracapsular extension might be associated with worse PSS(HR=20.30,95%CI:1.22–336.38,P=0.04;and HR=7.29,95%CI:1.22–43.64,P=0.03,respectively).Different surgical approaches(open,laparoscopic,or robotic-assisted)had similar outcomes in terms of PSS and *** conclusion,we report the longest timespan follow-up of Chinese PCa patients after RP with different approaches.

关键词： China oncologic outcome prostate cancer radical prostatectom

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