• Title/Summary/Keyword: Registration system

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Estimation of Completeness of Cancer Registration for Patients Referred to Shiraz Selected Centers through a Two Source Capture Re-capture Method, 2009 Data

  • Sharifian, Roxana;SedaghatNia, Mohammad Hossein;Nematolahi, Mohtram;Zare, Najaf;Barzegari, Saeed
    • Asian Pacific Journal of Cancer Prevention
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    • v.16 no.13
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    • pp.5549-5556
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    • 2015
  • Background: Cancer has important social consequences with cancer registration as the basis of moving towards prevention. The present study aimed to estimate the completeness of registration of the ten most common cancers in patients referred to selected hospitals in Shiraz, Iran by using capture-recapture method. Materials and Methods: This cross-sectional analytical study was performed in 2014 based on the data of 2009, on a total of 4,388 registered cancer patients. After cleaning data from two sources, using capture-recapture common findings were identified. Then, the percentage of the completeness of cancer registration was estimated using Chapman and Chao methods. Finally, the effects of demographic and treatment variables on the completeness of cancer registration were investigated. Results: The results showed that the percentages of completeness of cancer registration in the selected hospitals of Shiraz were 58.6% and 58.4%, and influenced by different variables. The age group between 40-49 years old was the highest represented and for the age group under 20 years old was the lowest for cancer registration. Breast cancer had the highest registration level and after that, thyroid and lung cancers, while colorectal cancer had the lowest registration level. Conclusions: According to the results, the number of cancers registered was very few and it seems that factors like inadequate knowledge of some doctors, imprecise diagnosis about the types of cancer, incorrectly filled out medical documents, and lack of sufficient accuracy in recording data on the computer cause errors and defects in cancer registration. This suggests a necessity to educate and teach doctors and other medical workers about the methods of documenting information related to cancer and also conduct additional measures to improve the cancer registration system.

Rotational Characteristics of Target Registration Error for Contour-based Registration in Neuronavigation System: A Phantom Study (뉴로내비게이션 시스템 표면정합에 대한 병변 정합 오차의 회전적 특성 분석: 팬텀 연구)

  • Park, Hyun-Joon;Mun, Joung Hwan;Yoo, Hakje;Shin, Ki-Young;Sim, Taeyong
    • Journal of Biomedical Engineering Research
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    • v.37 no.2
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    • pp.68-74
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    • 2016
  • In this study, we investigated the rotational characteristics which were comprised of directionality and linearity of target registration error (TRE) as a study in advance to enhance the accuracy of contour-based registration in neuronavigation. For the experiment, two rigid head phantoms that have different faces with specially designed target frame fixed inside of the phantoms were used. Three-dimensional coordinates of facial surface point cloud and target point of the phantoms were acquired using computed tomography (CT) and 3D scanner. Iterative closest point (ICP) method was used for registration of two different point cloud and the directionality and linearity of TRE in overall head were calculated by using 3D position of targets after registration. As a result, it was represented that TRE had consistent direction in overall head region and was increased in linear fashion as distance from facial surface, but did not show high linearity. These results indicated that it is possible for decrease TRE by controlling orientation of facial surface point cloud acquired from scanner, and the prediction of TRE from surface registration error can decrease the registration accuracy in lesion. In the further studies, we have to develop the contour-based registration method for improvement of accuracy by considering rotational characteristics of TRE.

Fine Registration between Very High Resolution Satellite Images Using Registration Noise Distribution (등록오차 분포특성을 이용한 고해상도 위성영상 간 정밀 등록)

  • Han, Youkyung
    • Journal of the Korean Society of Surveying, Geodesy, Photogrammetry and Cartography
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    • v.35 no.3
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    • pp.125-132
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    • 2017
  • Even after applying an image registration, Very High Resolution (VHR) multi-temporal images acquired from different optical satellite sensors such as IKONOS, QuickBird, and Kompsat-2 show a local misalignment due to dissimilarities in sensor properties and acquisition conditions. As the local misalignment, also referred to as Registration Noise (RN), is likely to have a negative impact on multi-temporal information extraction, detecting and reducing the RN can improve the multi-temporal image processing performance. In this paper, an approach to fine registration between VHR multi-temporal images by considering local distribution of RN is proposed. Since the dominant RN mainly exists along boundaries of objects, we use edge information in high frequency regions to identify it. In order to validate the proposed approach, datasets are built from VHR multi-temporal images acquired by optical satellite sensors. Both qualitative and quantitative assessments confirm the effectiveness of the proposed RN-based fine registration approach compared to the manual registration.

INTERACTIVE FEATURE EXTRACTION FOR IMAGE REGISTRATION

  • Kim Jun-chul;Lee Young-ran;Shin Sung-woong;Kim Kyung-ok
    • Proceedings of the KSRS Conference
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    • 2005.10a
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    • pp.641-644
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    • 2005
  • This paper introduces an Interactive Feature Extraction (!FE) approach for the registration of satellite imagery by matching extracted point and line features. !FE method contains both point extraction by cross-correlation matching of singular points and line extraction by Hough transform. The purpose of this study is to minimize user's intervention in feature extraction and easily apply the extracted features for image registration. Experiments with these imagery dataset proved the feasibility and the efficiency of the suggested method.

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Clinical Application of Image Guided Surgery : Zeiss SMN System (영상유도 뇌수술 장비의 임상적 적용 : Zeiss SMN System)

  • Lee, Chea Heuck;Lee, Ho Yeon;Whang, Choong Jin
    • Journal of Korean Neurosurgical Society
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    • v.29 no.1
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    • pp.72-77
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    • 2000
  • The authors describe the experience with the interactive image-guided Zeiss SMN system, which has been applied to 20 patients with various intracranial lesions during one year. Preoperative radiologic evaluation was CT scan in 6 cases, MRI in 14 cases. In all except one case, average fiducial registration errors were less than 2mm. There was no statistical difference in registration error between CT and MR image. This system considered to be relatively stable with respect to soft and hardware. Also it was useful for the designing of the scalp incision and bone flap and assessing the extent of resection in tumors, especially in gliomas. Moreover, it was helpful to evaluate complex surgical anatomy in skull base surgery.

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Study of the UK Pharmacy Education and the Pharmacy Registration Assessment: In England and Wales (영국의 약사교육체계와 국가면허 시험제도 연구: England 와 Wales지역을 중심으로)

  • Kim, Yun Jung
    • Korean Journal of Clinical Pharmacy
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    • v.25 no.2
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    • pp.61-67
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    • 2015
  • Pharmacy education and training is continuously evolving to meet the requirement from the society in the UK. Most pharmacy schools offer the Master of pharmacy degree which is a four year undergraduate programme followed by a year of pre-registration placement spanning a year supervised by a professional pharmacist who has at least 3 years' post-registration experience; however, some universities provide either a 5-year sandwich course where the pre-registration training is split up into two periods of 6 months or a 2-year OSPAP programme for those who are already qualified as a pharmacist outside of the UK. The GPhC has announced that the format of the registration assessment is set to change in 2016. The exam questions from 2016 will be more clinical, practical and based around a patient in a real-life scenario. This article addresses important aspects of UK pharmacy education such as university curriculum, training programme, and licence exam, therefore, could potentially offer a significant contribution to the debate about raising academic standards of pharmacy education in South Korea.

A Study on the Registration of Workplaces subjected to Work Environment Measurement to Expand it's Coverage (작업환경측정 커버리지 확대를 위한 대상 사업장 등록 방안)

  • Hwang, Gyuseok
    • Journal of Korean Society of Occupational and Environmental Hygiene
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    • v.30 no.3
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    • pp.299-305
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    • 2020
  • Objectives: The most important occupational health activity is work environment measurement(WEM) along with the health examination. The preventive function of the WEM system could be achieved on the assumption that all subjected workplaces are performing correctly the WEM. To achieve properly the original purpose of WEM, we suggested a policy for subjected workplaces that they should register whether subjected or not. Methods: We made registration draft through reviewing laws, reports and thesis for WEM. And we conducted Focus Group Interview for industrial health experts using structured questionnaire about the registration. Results: There were 412 occupational deaths from 2013 to 2017. And it was found that only 130(31.6%) workplaces which involved in these occupational deaths had conducted the WEM. In order to operate the WEM system with effect, the subjected workplaces should register the subject status. Such registration must be completed at the stage of industrial accident insurance enrollment. Conclusions: Conducting WEM is the first step to prevent intoxication accident in workpalces. To operate properly WEM we should correctly understand subjected workplaces. So it is needed for all subjected workplaces to register whether they are subjected or not.

Fingerprint Images Registration Method by Recursive Ridge Mapping (점진적 융선 정합을 통한 지문 영상 정렬 방법)

  • Choi, Kyoung-Taek;Choi, Hee-Seung;Kim, Jai-Hie
    • Proceedings of the IEEK Conference
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    • 2005.11a
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    • pp.1007-1010
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    • 2005
  • This paper presents a fingerprint image registration method. In the fingerprint system, the insufficiency of mutual information between a template and a query fingerprint is one of major factors to deteriorate recognition performance. To overcome this problem, we need to register multiple impressions and integrate their information. Our method matches the ridges from multiple impressions recursively and then registers the impressions to minimize the registration error calculated from the Distance map. Our method use regularized TPS model as the transformation model to compensate for the plastic deformation. We compare our method with 3 prior arts (ICP, Distance Map, Ross's method). Our registration error and its' variance is the smallest and also the average registration error is below 3 pixels.

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Robot assisted THA surgery using gauge based registration (게이지 정합 방법을 이용한 소형 인공고관절 수술로봇의 개발)

  • Shin, Ho-Chul;Park, Young-Bae;Yoon, Yong-San;Kwon, Dong-Soo;Lee, Jung-Ju;Won, Chung-Hee
    • Proceedings of the KSME Conference
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    • 2001.06c
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    • pp.482-484
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    • 2001
  • In orthopedics, hip arthroplasty is the operation that replaces damaged hip joint to artificial joint. In hip arthroplasty, quite better result can be achieved if robot is applied to machine cavity in bone, especially when cementless stem is used. So several kinds of robots were introduced for hip arthroplasty, but they used MRI, CT Scan, vision analysis and real time tracking of bone position for registration of robot. To overcome shortage of conventional robot surgery, gauge based registration method was proposed and small robot was designed. In this method, small robot is mounted on femur, and its position is determined by gauge registration method. Operation procedure was performed on model femur and result was analyzed. This robotic hip surgery system is expected to more adaptable in operation room.

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What must be done to prevent another humidifier disinfectant disaster?

  • Lee, Jong-Hyeon
    • Environmental Analysis Health and Toxicology
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    • v.31
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    • pp.24.1-24.7
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    • 2016
  • The humidifier disinfectant disaster (HDD) was not a simple poisoning accident by biocides, but a singular disaster in history created by chemicals in household products. This disaster was a result of the failure of a system for the management of chemical and product safety. Since the management authority for chemical usage safety is different from those for chemical safety in products, many blind areas for chemical safety management in products still remain. The 'Act on the Registration and Evaluation, etc. of Chemical Substances (ARECS)' or the new 'Biocidal Product Act' must not only address the blind areas in the management system for chemical and product safety, but also prevent a second HDD. To prevent another HDD, an integrated registration, evaluation, and management system for chemicals and consumer products must be incorporated into the 'ARECS' as an essential part for chemical safety in consumer products.