• Therapeutic Science for Rehabilitation
• /
• v.10 no.2
• /
• pp.37-51
• /
• 2021

Objective : The purpose of this study was to analyze non-invasive treatments and drooling assessment methods in children with cerebral palsy and developmental disabilities, who drool. Methods : This study searched two hundred papers published in 2005-2019. Forty-four papers were selected based on their abstract and title, and ten papers were finally selected following a secondary search. Results : The PEDro Scale of the selected papers was high with an average of seven points. As a result of analyzing the overall trends, the study participants were primarily patients with cerebral palsy, and recently, the therapeutic intervention of oral sensory exercise was more actively studied than behavioral modification. Studies of behavioral modification and oral sensory exercise intervention methods were found to have differences in participant age and, cognitive level, number of participants, research design, treatment time, and duration. Studies to confirming the frequency and severity of the drooling measurement method were found to be the main factor. Conclusion : This study analyzed typical behavioral modification and oral sensory exercise interventions as examples of non-invasive therapeutic interventions for children with cerebral palsy and developmental disabilities and provided information to help select appropriate therapeutic intervention methods when planning non-invasive therapy using behavioral modification and oral sensory exercise therapy.

• Proceedings of the KOR-BRONCHOESO Conference
• /
• 1991.06a
• /
• pp.29-29
• /
• 1991

후두암의 치료는 병변의 위치, 크기 등에 따라 치료방법이 다양하고 그 예후 또한 상이하다. 일반적으로 초기 후두암에서는 수술이나 방사선 요법이 비슷한 치료결과를 보이고, 진행된 후두암에서는 수술적 치료가 더 좋은 예후를 나타내는 것으로 알려져 있으나 발성장애를 초래하는 경우가 대부분이다. 저자들은 1986년부터 1990년까지 5년간 강남성모병원에서 후두암치료를 받았던 환자 81명을 대상으로 치료방법에 따른 음성보존 성적을 분석하였다. 1. T1 성대암 환자 18명중 16명 (88.9%)에서 방사선치료 또는 수술로써 음성을 보존할 수 있었다. 2. T2 후두암 환자 11명중 6명은 수술후 음성보존이 가능하였다. 3. 진행암환자 (T3, T4) 50명중 33명에 대해 수술을 시행하였고 이중 16명(48.5%)은 후두부분 또는 근전적출술 및 기관-식도 누공술에 의해 음성기능을 보존할 수 있었다. 4. 진행암환자에서 유도화학요법과 방사선치료의 병용요법만을 받은 17명 모두 6개월 이내에 재발하였고, 수술 혹은 수술과 방사선 치료를 병용한 33명중 27명이 최소한 6개월 이상 평균 2년 이상의 무병상태였다. 5. 후두부분 또는 근전적출술은 총 81명중 28명에서 시행되었고 그중 5명 (17.9%)에서 재발하였다.

• Progress in Medical Physics
• /
• v.4 no.1
• /
• pp.17-21
• /
• 1993

근접방사선치료는 방사성동위원소를 종양에 밀착시키거나 또는 종양내에 직접 삽입하여 치료하는 방법으로서 종양에는 일시에 많은 선량을 주는 반면 주위 정상조직에는 선량을 최소화시킬 수 있는 장점이 있다. 따라서 근래에 들어 종양치료에 있어서 외부방사선치료와 병행하여 근접방사선치료를 시행하는 병원이 증가하고 있다. 그러나 근접방사선치료는 방출 방사선의 에너지가 낮고, 대부분 짧은 반감기를 가지며, 소형의, 수 mCi에서 수Ci 정도의 방사능을 가진 방사성동위원소들을 인체에 직접 삽입하는 것으로 정확한 선량 분포를 위해서는 방사성동위원소의 방사능량, 위치, 분포 등의 정확성 확보가 절실히 요구된다. 따라서 이 논문은 근접방사선치료시스템의 QA프로그램 개발을 위하여 작성하였다.

• Journal of Radiation Protection and Research
• /
• v.36 no.1
• /
• pp.28-34
• /
• 2011

The measurement-based verification for intensity modulated radiation therapy (IMRT) is a time-and labor-consuming procedure. Instead, this study aims to develop a MU fluence reconstruction method for IMRT QA. Total actual fluences from treatment planning system (TPS, Eclipse 8.6, Varian) were selected as a reference. Delivered leaf positions according to MU were extracted by the dynalog file generated after IMRT delivery. An in-house software was develop to reconstruct MU fluence from the acquired delivered leaf position data using MATLAB. We investigated five patient's plans delivered by both step-and-shoot IMRT and sliding window technologies. The total actual fluence was compared with the MU fluence reconstructed by using commercial software (Verisoft 3.1, PTW) and gamma analysis method (criteria: 3%/3 mm and 2%/1 mm). Gamma pass rates were $97.8{\pm}1.33$% and the reconstructed fluence was shown good agreement with RTP-based actual fluence. The fluence from step and shoot IMRT was shown slightly higher agreement with the actual fluence than that from sliding window IMRT. If moving from IMRT QA measurements toward independent computer calculations, the developed method can be used for IMRT QA. A point dose calculation method from reconstructed fluences is under development for the routine IMRT QA purpose.

• Radiation Oncology Journal
• /
• v.16 no.4
• /
• pp.455-467
• /
• 1998

Purpose : To evaluate influences associated with radiation treatment planning obtained with the patient breathing freely. Materials and Methods : We compared reduction or elimination of planning target volume (PTV) margins with 2-D conventional plan with inclusion of PTV margins associated with breathing with 3-D conformal therapy. The respiratory non gated 3-D conformal treatment plans were compared with respiratory gated conventional 2-D plans in 4 patients with hepatocellular carcinomas. Isodose distribution, dose statistics, and dose volume histogram (DVH) of PTVs were used to evaluate differences between respiratory gated conventional 2-D plans and respiratory non gated 3-D conformal treatment plans. In addition. the risk of radiation exposure of surrounding normal liver and organs are evaluated by means of DVH and normal tissue complication probabilities (NTCPs). Results : The vertical movement of liver ranged 2-3 cm in all patients. We found no difference between respiratory gated 2-D plans and 3-D conformal treatment plans with the patients breathing freely. Treatment planning using DVH analysis of PTV and the normal liver was used for all patients. DVH and calculated NTCP showed no difference in respiratory gated 2-D plans and respiratory non gated 3-D conformal treatment plans. Conclusion : Respiratory gated radiation therapy was very important in hepatic tumors because radiation induced hepatitis was dependent on remaining normal liver volume. Further investigational studies for respiratory gated radiation.

• Journal of Dental Rehabilitation and Applied Science
• /
• v.30 no.3
• /
• pp.223-230
• /
• 2014

Purpose: The purpose of this study was to evaluate the improvement and posttreatment stability of patients treated with extraction of lower incisors. Materials and Methods: The total of 20 patients with extracted lower incisors were analyzed by means of diagnostic models and panoramic x-rays at the time of initial, final and after 2 years of retention period of the treatment. Irregularity index, overjet, overbite, tooth size-arch length discrepancy (TSALD), intercanine width, intermolar width and American Board of Orthodontics cast/radiographic evaluation (ABO-CRE) were analyzed. Statistical analysis was performed using Wilcoxon signed-rank test. Results: After treatment, irregularity index showed significant decrease (P = 0.000). TSALD showed significant increase (P = 0.028). During retention period, irregularity index showed significant increase (P = 0.001). For ABO-CRE, total score showed significant decrease after treatment (P = 0.000) and showed average decreased which was not significant result (P = 0.053). Conclusion: Through evaluation of stability of extraction of lower incisors by means of diagnostic models and panoramic x-rays, it can be concluded that lower incisor extraction treatment had been stable for 2 years after treatment.

• Journal of the Korean Society of Radiology
• /
• v.81 no.3
• /
• pp.549-561
• /
• 2020

Since the endosaccular coil embolization technique was introduced as an alternative for treating selected patients with aneurysms, it has become a mainstay of treatment for cerebral aneurysms. In lesions with a neck larger than the aneurysmal body, an irregular shape, or arterial branches incorporated within the sac, endovascular treatment using detachable coils are traditionally contraindicated because of technical difficulties. Coil embolization has evolved as a result of both the development of related devices and the introduction of technical improvements using various devices. Use of various technical and device options can make endovascular treatment of cerebral aneurysms safer and can widen the treatment indications. Various technical options, including the technical modification of device-assisted techniques, will be presented, and the related practical points will be discussed in this issue.

• Progress in Medical Physics
• /
• v.3 no.1
• /
• pp.45-52
• /
• 1992

Authors started IORT for stomach cancer patient on 1988 and rectal cancer on 1991. We devloped various sized. shaped IORT cones for better clinical application and homogeneous surface and depth dose distribution. Authors obtained results as following. 1. The acryl cover fixed on the end for rectal IORT cone not only improvement of surface dose but also flattness of dose distribution. 2. Dose distribution of elliptical cone were shown almost 100% at inner field. 3. The output with acryl cone size were similar output of made electron cone.

• The Journal of Korean Society for Radiation Therapy
• /
• v.3 no.1
• /
• pp.45-50
• /
• 1989

Wedge filter are used in high energy radiation therapy to obtain uniform isodose lines at small volume tumor and irregular body surface. The aim of this study is not only to describe the method of construction and setting of semi-universal wedge filter for $^{60}Co$ radiation therapy but also to get the optimum treatment planning by clinical application of wedge filter.

• The korean journal of orthodontics
• /
• v.27 no.2
• /
• pp.197-208
• /
• 1997

Class III malocclusion patients can be approached with many different types of treatment methods, and thus, each patient's problems must be accurately evaluated to allow selection of the best possible treatment method. Cephalometric analysis is an essential part of diagnosis and treatment planning of orthodontic patients, and it would certainly be helpful if reliable cephalometric guidelines could be set. The author divided 482 Class III malocclusion patients(253 males and 229 females) into fourgroups according to different types of treatment methods they have received to correct imbalance between upper and lower jaws: 1) orthopedic appliance (face mask & RPE), 2) camouflage treatment with fixed appliance, 3) surgical-orthodontic treatment, 4) cross-bite correction with removable plates/ functional appliance. Cephalometric values at the time of first clinical examination were compare among the four groups. Cephalometric analysis indicates the following results: 1)the amounts of antero-posterior and vertical skeletal discrepancies and dental compensation were greatest in surgery group 2) SNB, Wits, distance from Nasion Perpendicular Plane to point a facial angle, facial convexity, and APDI were greater in orthopedic appliance group than fixed appliance(camouflage) group, but there was no statistical difference 3) removable plates/ functional appliance group showed least amounts of skeletal discrepancies and dental compensation with statistical significance.