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Search Results: 1 - 10 of 144830 matches for " WANG Ming-Quan "
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Transcatheter Arterial Chemoembolization: History for More than 30 Years
Yong-Song Guan,Qing He,Ming-Quan Wang
ISRN Gastroenterology , 2012, DOI: 10.5402/2012/480650
Abstract:
Transcatheter Arterial Chemoembolization: History for More than 30 Years
Yong-Song Guan,Qing He,Ming-Quan Wang
ISRN Gastroenterology , 2012, DOI: 10.5402/2012/480650
Abstract: Transcatheter arterial chemoembolization (TACE) is a minimally invasive technique to treat liver tumors, particularly hepatocellular carcinoma (HCC). TACE was used in early times to treat liver tumor patients with emergencies caused by symptomatic humoral hypercalcemia and develops gradually from the procedures of diagnostic angiography and transcatheter injection of agents and is in particular performed in the treatment of HCC. Since the beginning of this century, TACE has been used extensively in the palliative treatment of unresectable HCC. In recent years, it is indicated in selected patients with early-stage HCC. This review introduces the evolution of TACE for more than 30 years, its role in comprehensive treatment of HCC, the tendency of its refinement in future, and the combination use of TACE with other local ablative methods for the curative result of HCC. 1. Introduction The term “transcatheter” denotes “performed through the lumen of a catheter” which is commonly used in interventional radiology with the Seldinger technique [1]. This technique is a procedure to obtain safe access to hollow organs, especially blood vessels. It was developed in 1953 by Dr Sven-Ivar Seldinger (1921–1998), a Swedish radiologist from Mora Municipality, Dalarna County. Embolization is another procedure, nonsurgical, and minimally invasive, through placement of artificial embolus, used to treat a wide variety of conditions affecting different organs of the human body [2]. For tumor therapy, this treatment is used to slow or stop blood supply for reducing the size of the tumor [3, 4]. Transcatheter arterial chemoembolization (TACE) in particular has been performed in the treatment of hepatocellular carcinoma (HCC), the most common malignant tumor of the liver [5]. TACE also has a role in delaying the progression of HCC until a donor liver becomes available [6]. Up to now, TACE has had its history for more than 30 years and progressed greatly during the recent decade. Since the beginning of this century, TACE has been used extensively in the palliative treatment of unresectable HCC. In recent years, it is indicated in selected patients with early-stage HCC. 2. Evolution of TACE In 1930 Brooks reported embolization of a carotid-cavernous fistula, which could be taken as the earliest concept of therapeutic embolization [7]. Since Seldinger described in 1953 his technique, numerous intravascular procedures have been advocated [8]. Until the early 1970s, many talented ideas derived from Seldinger’s technique had been attempted to control gastrointestinal bleeding, such
Research on Stitching Technique of Infrared Images
医学红外图像快速拼接方法研究

WANG Yu,WANG Ming-Quan,LI Zhi-Gang,
王玉
,王明泉,李志刚

红外 , 2008,
Abstract: A conventional medical infrared imaging equipment can only provides the images with a limited visual field.Therefore,an integrated image can only be obtained through image stitching.In this paper,an image stitching tcchnique based on grid is proposed.A registraion procedure from coarse to precious is used to find the best matching pairs.A fade-in and fade-out method is used to remove the seams in the stitching images.The experimental results show that this method has a rapid registration speed and a good fusion effectness and can achieve a seamless mosaic result.
Study of Infrared and Visible Image Fusion Technology Based on Wavelet Transform
基于小波变换的红外与可见光图像融合技术研究

WANG Ming-quan,WANG Yu,
王明泉
,王玉

红外 , 2013,
Abstract: With the development of sensor technologies, a single image sensor can not extract enough information from a scene. So, the multi-source image fusion is urgent to be studied. To solve the problem that the features of a same object in the images from multiple sensors are not identical, the wavelet transform is used to fuse the infrared and visible images. Firstly, the wavelet transform is used to decompose the image in multi scale. For high frequency fusion, the coefficients with maximum absolute values in two original images are selected. For low frequency fusion, the strategy of combining the domain pixel correlation with the regional variance is used. The experimental result shows that this fusion algorithm can fuse the different features and details of a same object in infrared and visible images into one image. It can increase the information in one image and enrich the information hierarchy of the target. It provides the basis for the image display and subsequent image processing.
Chaotic Hybrid Bacterial Colony Chemotaxis Algorithm Based on Tent Map
Jia-Ze Sun,Guo-Hua Geng,Shu-Yan Wang,Ming-Quan Zhou
Journal of Software , 2012, DOI: 10.4304/jsw.7.5.1030-1037
Abstract: Aiming at improving the global convergence speed of bacterial colony chemotaxis (BCC) optimization algorithm, a new chaotic hybrid bacterial colony chemotaxis (CHBCC) algorithm is introduced through the technique of hybrid algorithm. By integrating elitist strategy and chaotic optimization into bacterial colony chemotaxis optimization algorithm, it greatly enhances the local searching efficiency and global searching performance. Furthermore, the bacteria are divided into two sub-swarms and perform different operations to co-evolve, one sub-swarm searches via BCC and the other searches via chaos algorithm based on Tent Map at the same time. Simulation results on some benchmark functions show that CHBCC is pretty efficient to solve complex problems. It has high optimization efficiency, good global performance, and stable optimization outcomes. The performance of CHBCC is evidently better than BCC and BC.
Effects of Yifei Kangliu Qral Liquid on cell cycle and protein-nucleic acid synthesis of experimental lung cancer
HAN Ming-Quan
Zhong Xi Yi Jie He Xue Bao , 2003,
Abstract: Objective: To explore the effect of the traditional Chinese medicine Yifei Kangliu (YFKL) Oral Liquid on the proliferation, cell cycle and protein-nucleic acid synthesis of murine Lewis lung cancer cell and human lung adenocarcinoma cell line SPC-A-1. Methods: The inhibiting rates of tumor growth were calculated by weighing the weight of tumor inoculated in vivo, combined by counting cancer cells in vitro. The ratio of the cell cycle and exponents of DNA, RNA, and protein were measured by flow cytometry (FCM). Results: The inhibiting rate of tumor growth in the treated group with YFKL Oral Liquid was 30.38% (P<0.05). The proportion of cells in S phase of the treated groups with YFKL Oral Liquid was lower than that of the control group. In the group with most significant result, 72% of the cells were stagnated in G0/G1 phase. The inhibiting rates of DNA, RNA and protein in murine Lewis lung cancer were 7.4%, 23.73% and 23.31% respectively. In SPC-A-1 cell line, the inhibiting rates were 9.3%, 10.1% and 14.7% respectively, demonstrating amplified effects on lower levels. Conclusion: YFKL Oral Liquid significantly inhibited the proliferation of murine Lewis lung cancer cell and human lung adenocarcinoma cell line SPC-A-1 by blocking the cancer cells entering the proliferative phase resulted from its inhibition of DNA.
Prognostic analysis of advanced non small cell lung cancer treated by sequential chemo-radiation therapy combined with traditional Chinese medicine: A report of 54 cases
HAN Ming-Quan
Zhong Xi Yi Jie He Xue Bao , 2003,
Abstract: Objective: To evaluate the influence of fewer courses and prolonged intervals of chemotherapy on survival rate of advanced non small cell lung cancer (NSCLC) patients treated by sequential chemo-radiation therapy combined with traditional Chinese medicine (TCM). Methods: From Jan.2000 to Dec.2001, 54 untreated advanced NSCLC patients (2 stage Ⅲa, 18 stage Ⅲb, 34 stage Ⅳ) were treated by sequential chemo-radiation therapy combined with TCM. The courses of chemotherapy were reduced and the intervals of chemotherapy were longer than that of the standard regimen. The efficacy and survival rate were documented and the prognostic factors were analyzed. Results: Complete remission (CR) was observed in 1 case and partial remission (PR) in 20 cases. The overall objective response rate was 40.4%. Median survival was 15.3 months, 1-, 2- and 3- year survival rate were 53.7%, 28.9% and 9.6% respectively. The median survival of stage Ⅲ and Ⅳ were 21.8 months and 12.5 months respectively. The 1-, 2-, and 3- year survival rates of stage Ⅲ were 65.0%,49.5%, 24.7% and that of stage Ⅳ were 47.0%, 23.3%, 0%, respectively. The quality of life was improved in most of the patients. Cox's proportional hazards regression showed that improved quality of life and treatment of TCM were the significant prognostic factors of overall survival. Conclusion: Chemotherapy and radiotherapy combined with TCM is beneficial to extending the interval of chemotherapy, improving the quality of life, and increasing the survival rate of advanced NSCLC patients.
Exact invariants and adiabatic invariants of dynamical system of relative motion
Exact invariants and adiabatic invariantsof dynamical system of relative motion

Chen Xiang-Wei,Wang Xin-Min,Wang Ming-Quan,
陈向炜
,王新民,王明泉

中国物理 B , 2004,
Abstract: Based on the theory of symmetries and conserved quantities, the exact invariants and adiabatic invariants of a dynamical system of relative motion are studied. The perturbation to symmetries for the dynamical system of relative motion under small excitation is discussed. The concept of high-order adiabatic invariant is presented, and the form of exact invariants and adiabatic invariants as well as the conditions for their existence are given. Then the corresponding inverse problem is studied.
Fast intra-frame prediction algorithm based on macro-block pre-determine for H.264/AVC standard
基于H.264宏块预判断的快速帧内算法

CHEN Shi-zhe,WANG Ming-quan,CHEN Zhi-qiang,
陈诗哲
,王明泉,陈志强

计算机应用研究 , 2011,
Abstract: 针对视频压缩标准H.264/AVC 的压缩率很高,但其算法复杂、编码时间较长,提出了基于MAD值的宏块模式选择的预判断;针对帧内4×4块,提出利用相邻块和相邻方向预测模式的相关性进行帧内模式预测。实验结果表明,与全搜索算法相比,在采用全I帧编码的情况下,该算法的编码时间减少73%,输出的视频比特率仅增加2.14%,且PSNR 基本保持不变。
An Attribute Reduction Algorithm Based on Fuzzy-rough Set and It''''s Application in Medical Image Area
一种基于模糊粗糙集理论的算法及其在医学影像中的应用

WANG Xiao-feng,ZHOU Ming-quan,GENG Guo-hua,
王小凤
,周明全,耿国华

计算机应用研究 , 2005,
Abstract: Accurate location of license plates in images plays an important role in automatic license plate recognition systems. A novel and effective method is proposed in this paper for automatic license plate location taking advantages of symmetry of the car body and employing color clustering. In this method, scene (night or day) of the image to study is first identified. For each type of scene, a specific algorithm is designed to locate the license plate in it. A double location algorithm is implemented for night images, and another one based on symmetry finding and rules regarding text related characteristics in the region of license plate for day images. Experimental results show an accuracy of 95.7% for both image scene classification and license plate location.
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