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Three-dimensional reconstructed magnetic resonance scans:Accuracy in identifying and defining knee meniscal tears

World Journal of Orthopedics 2016年第11期7卷 731-737页

作者： Neil Kruger eugene mc nally Sami Al-Ali Raj Rout Jonathan L Rees Andrew J Price Orthopaedic Research Unit University of Cape Town Nuffield Orthopaedic Centre University of Oxford the Whittington Hospital

AIM To determine whether three-dimensional(3D) reconstruction from conventional magnetic resonance imaging(MRI) is able to accurately detect a meniscal tear, and define the *** Thirty-three patients' 3T MRI scan data were collected and sagittal uni-planar 3D reconstructions performed from the preoperative MRI. There were 24 meniscal tears in 24 patients, and nine controls. All patients had arthroscopic corroboration of MRI findings. Two independent observers prospectively reported on all 33 reconstructions. Meniscal tear presence or absence was noted, and tear configuration subsequently categorised as either radial, bucket-handle, parrot beak, horizontal or *** Identification of control menisci or meniscal tear presence was excellent(Accuracy: observer 1 = 90.9%; observer 2 = 81.8%). Of the tear configurations, bucket handle tears were accurately identified(Accuracy observer 1 and 2 = 80%). The remaining tear configurations were notaccurately *** Uni-planar 3D reconstruction from 3T MRI knee scan sequences are useful in identifying normal menisci and menisci with bucket-handle tears. Advances in MRI sequencing and reconstruction software are awaited for accurate identification of the remaining meniscal tear configurations.

关键词： Knee Meniscus Arthroscopy Magnetic resonance imaging Three-dimensional reconstruction Materialise Interactive Medical Control System Tear

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ReSSIM:a mixed-level simulator for dynamic coarse-grained reconfigurable processor

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Science China(Information Sciences) 2013年第6期56卷 137-152页

作者： LIU LeiBo JIA Wen YIN ShouYi WANG Dong SUN GuanYi TANG eugene WEI ShaoJun Institute of Microelectronics and National Laboratory for Information Science and Technology Tsinghua University Intel China Research Center

This paper proposes a mixed-level simulator for dynamic coarse-grained reconfigurable processor(CGRP),called ReSSIM(reconfigurable system simulation implementation mechanism),and the corresponding simulation tool-chain,including task compiler,profiler and debugger.A generic modeling methodology supporting convenient extension of on-chip modules is also *** order to explore the details of the interested modules while maintaining reasonable simulation speed,RCA(reconfigurable computing array),the key reconfigurable device in ReSSIM,is modeled on cycle-accurate level,while the other modules are modeled on transaction *** typical parameters of RCA are scalable and adjustable,which helps the architects to explore the massive details of the reconfigurable *** shows that simulation speedup achieved ranges from 9.26× to 18.39× compared with VCS(Synopsys verilog compiler simulator) when running three computingintensive kernel tasks of H.264 decoding algorithm-IDCT(inverse discrete cosine transform),deblocking and mc-chroma(motion compensation).Simulation speed for a set of real applications,such as MPEG4,G.729 and EFR,is 35× slower than the corresponding native executions(*** from the real chip).And the relative simulation errors are 11% less than the measured IPC(instructions per cycle) of the real chip.

关键词： CGRP RCA ReSSIM modeling simulator

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Peformance Analysis and Optimization for Wireless Caching in 5G Networks

Peformance Analysis and Optimization for Wireless Caching in...

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作者： MUTANGANA eugene 南京理工大学

学位级别：硕士

The 5th generation wireless networks ought to offer speedy and dependable connectivity while managing the growing of mobile ***'s far of paramount significance that the desired sources,along with energy and bandwidth,do now not scale with *** the same time as network traffic is growing at an unprecedented rate,customers tend to request the same popular contents/movies at one of a kind time ***,caching is a promising approach to lessen the redundant transmissions of popular video/films over back-haul channels and mitigate *** this thesis we present caching in two distinctive approaches 1)Caching popular videos within the storage of small-mobile base stations,particularly,Small-cell caching of big videos in the storage of Small-mobile Base Stations,that is an powerful engineering for scaling down the transmission latency thru extenuating more transmissions of huge videos over back-haul traces,2)caching to attain interference *** the first situation,we keep in mind advertised small-cell caching system comprising of Network service company(NSC),numerous Video retailers(VR),and Mobile customers(mc).The NSC rents its SBSs to the VRs intending *** game framework is used for addressing the SBSs as particular kind of *** mcs and SBSs as self sustaining Poisson factor approaches(PPP)are used to expand the chance of the proper event that an mc receives video of its alternative immediately from the memory of an SBS thru stochastic geometry ***,a Stackelberg game is developed to maximize the common advantage of the NSC and the *** look into the Stackelberg game balance with the useful resource of solving a non-convex optimization ***,based totally on game theoretic framework,we break up light at the four vital factors with appreciate to their relationship:top-rated pricing of leasing an SBS,SBSs allocation among the VRs,Caching size of the SBSs,and the popularity dispers

关键词： Wireless network Caching interference management 5G wireless backhaul Degree of freedom Small-cell caching Stackel berg game

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英国西北部视神经发育不全和视隔发育不全的地域分布

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世界核心医学期刊文摘（儿科学分册） 2006年第5期2卷 30-30页

作者： Patel L. mc nally R.J.Q. Harrison E. 贺莉 University of Manchester Academic Unit of Child Health Booth Hall Children's Hospital Manchester M9 7AA United Kingdom.Dr

Objective: To study the distribution of septo-optic dysplasia (SOD) and optic nerve hypoplasia (ONH) in the Greater Manchester and Lancashire (GM&L) region of Northwest England, and to analyze occurrence by location and over time. Study design: A population-based incidence study was undertaken for cases of SOD/ONH from GM&L. Standardized incidence ratio (SIR) for each district, relationships between SIRs and possible geographically varying risk factors, and spatial and space-time clustering were analyzed. Results: Eighty-seven cases had a confirmed diagnosis of ONH/SOD giving an incidence of 10.9/100,000 per year in GM&L. SIRs ranged widely but were significantly elevated (lower confidence limit > 100) in three districts: 167%, 192%, and 198%, respectively. All three were high population density, inner-city locations. SIRs were significantly correlated with higher rates of unemployment (r=0.49, P= .01), dependent children in nonearning households (r= 0.47, P= .02), underage conceptions (r= 0.46, P= .02), and underage pregnancies (r=0.44, P= .03). There was no evidence of spatial or space-time clustering. Conclusions: The incidence of ONH/SOD in GM&L was higher than that reported elsewhere. Cases were more common in areas that had higher unemployment and teenage pregnancy rates.

关键词：视神经发育不全地域分布英国标准化发病率发病率研究时空聚集性发育异常试验设计危险因素

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