• Proceedings of the Korean Society of Computer Information Conference
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• 2017.07a
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• pp.153-155
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• 2017

최근 건강관리 및 질병관리 등에 대한 관심이 증가하면서 유비쿼터스 헬스케어 서비스와 관련 기기에 대한 개발이 활발히 진행 중이다. 또한, 관련 기기가 단순히 건강진단 및 질병진단과 더불어서 치료까지 하나의 기기에서 이루어지는 테라그노시스 방향으로 개발되고 있다. 또한 치료를 위해 광유전학 기술을 이용하여 광반응성 단백질인 ChR2로 뇌세포의 자극을 조절할 수 있다. 뇌세포의 자극을 조절함으로써 뇌 질환의 발현 시 유용하게 대처할 수 있다. 본 논문에서 뇌의 전기적 신호를 획득하는 기기와 연동되는 IoT 시스템을 통해서 유비쿼터스 헬스케어에 대한 방법론에 대해서 서술한다. 특히, 뇌의 전기적 신호를 획득하는 장치를 통한 뇌, 신경 질환인 뇌전증에 대한 진단과 치료의 유무를 판단하는 유비쿼터스 헬스케어 시스템에 대해서 서술한다. 이처럼 웨어러블 뇌파 신호 측정 장치와 연동되는 IoT 시스템을 통해 뇌파 신호를 지속적으로 모니터함으로써 사용자의 뇌전증의 발현 시 진단 및 치료, 긴급연락 서비스를 통해 사용자의 돌발 사태에 대해서 대처할 수 있는 방법론을 제시한다.

• Nuclear Engineering and Technology
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• v.5 no.2
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• pp.87-93
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• 1973

Due to the Co-60 source size, the penumbra in Co-60 teletheraphy poses a serious problem, even if the extended collimators are used, Here an empirical formula for the calculation of integral absorbed dose in the penumbra region was derived. Through a numerical calculation, the penumbra effect on integral absorbed dose was investigated. The longer the source-to-skin distance, the larger the integral absorbed dose of penumbra region, and the larger the source diameter, the larger the integral absorbed dose of penumbra region. It was also found that in some case the integral absorbed dose in penumbra region becomes several times larger than the integral absorbed dose of treatment region itself if the source-to-skin distance becomes greater. Therefore, one must consider the penumbra effect in Co-60 teletherapy.

• The korean journal of orthodontics
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• v.19 no.2
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• pp.165-175
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• 1989

In evaluation of some area within the craniofacial complex posteroanterior cephalogram together with lateral cephalogram is used for assessment of the exact existence and posture by grasping 3-dimensional concept. The usages of posteroanterior cephalogram in orthodontics are following; 1. The use during diagnosis and treatment planning 1) Assessment of the area and amount of facial asymmetry. 2) Assessment of therapeutic position for diagnosis and treatment 2. The Assessment of success in orthodontic mechanics If we use posteroanterior cephalogram together with lateral cephalogram adequately and simultaneously we can establish the exact diagnosis and appropriate treatment planning.

• The korean journal of orthodontics
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• v.30 no.4 s.81
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• pp.377-386
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• 2000

At the finishing stage, the use of asymmetric elastics to treat mild skeletal and dental midline discrepancies often creates several side effects such as canted occlusal plane, tipped incisors and unesthetic results. This report presents the clinical cases with midline discrepancies, following a differential diagnosis, optimal mechanics, and considerations in treatment. Differential diagnosis and treatment mechanics with three-piece basal archwire can obtain predictable midline correction with minimal side effects.

• The Journal of the Korea Contents Association
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• v.11 no.4
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• pp.290-302
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• 2011

The purpose of this research was to investigate the effects of vestibule-oriented sensory integration treatment on the nystagmus, visual perception and balancing ability of children with developmental disability. Twenty three children with developmental disability were participated in this experiment. Subjects were received the vestibule-oriented sensory integration treatment based on Ayres' sensory integration theory for 12 weeks. The effects of the treatment were evaluated by Southern California Postrotary Nystagmus Test (SCPNT), Developmental Test of Visual Perception-2 (DTVP-2), Pediatric-Clinical Test of Sensory Integration Balance (P-CTSIB), South California Sensory Integration Test (SCSIT) and the selected item in Bruininks-Oeretsky Test of motor proficiency (BOT). The collected data were analyzed by using Wilcoxon test. The result of this study was as follows that the data of the Nystagmus shown statical significant. The data of the Visual Perception and Balancing ability shown statical significant. The proposed vestibule-oriented sensory integration treatment was effective to improvement of nystagmus, the visual perception and the balancing ability in children with Developmenantal Disability.

• The Journal of Korean Society for Radiation Therapy
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• v.14 no.1
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• pp.89-94
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• 2002

During radiation therapy with electron beam to eyelid, we must keep the minimal dose on eyeball as possible. especially in the treatment of Sebaceous gland carcinoma, Squamouse cell ca., and basal cell ca. of eyelid and low grade MALToma etc. But if radiation field covered the upper & lower eyelid, it makes a cataract on lens of treated eye, in late complications. Now we reports the advantages of Tungsten eyeball shielding block compare to previously used lead block. with BOLX-I material, we made a eyeball model and measured the absorbed dose of 6MeV & 9MeV electron hem at 6 point of eyeball model with TLD chip. And compare the absorbed dose to previously lead block and other types of Tungsten eyeball shielding block.

• The Journal of the Convergence on Culture Technology
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• v.4 no.1
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• pp.275-278
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• 2018

This study examines how poem and poetic ego of Cho Ji-Hoon form synapses. It is to clarify the synaptic structure of the healing, the contact point between the literary mechanism and the mechanism of the ego. Therefore, it aims to encode the active therapy by substituting the structure into the literary therapy program. Cho Ji-Hoon's poem "Bellflower Flower" is a mesh of poem, and a mesh of semantic arguments is set up for the 'Bellflower Flower' of functor. At this time, the longing that attracts depression to the net of the semantic argument is caught. This exists as a function of healing. If we embody a literary therapy program that utilizes the synaptic structure of this healing, it will be able to experience the function of literary therapy improved than before.

• The Journal of Korean Society for Radiation Therapy
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• v.26 no.2
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• pp.247-256
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• 2014

Purpose : To assess target motion during radiotherapy by quantifying daily setup errors and inter-fractional and intra-fractional movements of pancreatic fiducials. Materials and Methods : Eleven patients were treated via stereotactic body radiotherapy (SBRT) with volumetric modulated arc therapy. Bony setup errors were calculated using cone beam computed tomography (CBCT). Inter-fractional and intrafractional fiducial (seed) motion was determined via cone beam computed tomography (CBCT) projections and orthogonal fluoroscopy. Results : Using an off-line correction protocol, setup errors were 0.0 (-1.7-4.0), 0.3 (-0.5-3.0), and 0.0 (-4.1-6.6) mm for the left-right, anterior-posterior, and superior-inferior directions respectively. Random inter-fractional setup errors in the mean fiducial positions were -0.1, -1.1, and -2.3 mm respectively. Intra-fractional fiducial margins were 9.9, 7.8, and 12.5 mm, respectively. Conclusion : Online inter-fractional and intra-fractional corrections based on daily kV images and CBCT expedites SBRT of pancreatic cancer. Importantly, inter-fractional and intra-fractional motion needs to be measured regularly during treatment of pancreatic cancer to account for variations in patient respiration.

• Progress in Medical Physics
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• v.19 no.4
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• pp.241-246
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• 2008

Patient's respiration can have an effect on movement of tumor range and peripheral organs. Therefore, the respiratory signal was acquired by relation between external markers and movement of patient's abdomen during radiational therapy in order to minimize the effect of respiration. Based on this technique, many studies of rational therapy to irradiate at particular part of stable respiratory signals have executed and they have been clinically applied. Nevertheless, the phase-based method is preferred to the amplitude-based method for the rational therapy related to respiration. Because stabilization of the respiratory signal are limited. In this study, a in-house respiratory signal analysis program was developed for the phase reassignment and the analysis of the irregular respiratory signals. Various irregular respiratory patterns was obtained from clinical experimental volunteers. After then, the in-house program analyzed the factors affecting to phase assignment which is directly related to irradiated sector. Subsequently, accuracy of phase assignment was improved with removement of irregular signals by self-developed algorithm. This study is considered to be useful for not only image reconstruction and elevation of irradiating accuracy through phase assignment of RPM system but also analysis of respiratory signals. Moreover, development of 4D CT image is planed with phantom researches or clinical experiments based on this program.

• Journal of the Korean Society of Radiology
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• v.12 no.3
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• pp.313-319
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• 2018

In radiation treatment, it is unavoidable to block the influence of scattered ray on a skin and prevent internal normal organs from being exposed to radiation. It is fair to say that radiation therapy aims to reduce an absorbed dose of normal tissues. In particular, in radiation therapy of left-sided breast cancer, the internal neighboring organs are normal breast tissues, the heart, and the lung. The side effects on the heart include cardioplegy and myocardial infarction. This study tried to observe changes in the volume and dose of the heart in general radiation therapy plan and respiratory control based radiation therapy plan for patients with left-sided breast cancer, and to find the heart's volume and dose generated by respiration. According to the 4D computer tomography (CT), a volume of the heart had $12.8{\pm}8.7cc$ on average, and its dose had $17.3{\pm}12.1cGy$ on average. The differences in the volume and dose may cause side effects in radiation treatment. Therefore, it is necessary to apply respiratory control technique to establish the radiation treatment plan based on an accurate position of the heart.