• Title/Summary/Keyword: Index cases

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A Comparison of Patient-specific Delivery Quality Assurance (DQA) Devices in Radiation Therapy (방사선치료에서 환자맞춤형 선량품질보증 장치의 비교)

  • Kyung Hwan Chang
    • Journal of radiological science and technology
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    • v.46 no.3
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    • pp.231-238
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    • 2023
  • This study aimed to compare the results of delivery quality assurance (DQA) using MapCHECK and OCTAVIUS for radiation therapy. Thirty patients who passed the DQA results were retrospectively included in this study. The point dose difference (DD) and gamma passing rate (GPR) were analyzed to evaluate the agreement between the measured and planned data for all cases, Plan complexity was evaluated to analyze dosimetric accuracy by quantifying the degree of modulation according to each plan. We analyzed the monitor units (MUs) and total MUs for each plan to evaluate the correlation between the MUs and plan complexity. We used a paired t-test to compare the DD and GPRs that were obtained using the two devices. The DDs and GPRs were within the tolerance range for all cases. The average GPRs difference between the two devices was statistically significant for the brain, and head and neck for gamma criteria of 3%/3 mm and 2%/2 mm. There was no significant correlation between the modulation index and total MUs for any of the cases. These DQA devices can be used interchangeably for routine patient-specific QA in radiation therapy.

Morphological and morphometric study of pulmonary vein anatomy in relation to cardiac invasive and electrophysiological procedures

  • Harshal Oza;Bhavik Doshi
    • Anatomy and Cell Biology
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    • v.56 no.4
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    • pp.428-434
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    • 2023
  • Pulmonary veins (PVs) and their myocardial sleeves play an important role in the development of atrial fibrillation. Hence, detailed knowledge of PV anatomy is required to improve the procedural success rate and prevent complications during cardiac procedures. The aim of this study was to evaluate the PV anatomy along with anatomical variations in the Indian population. Total 100 formalin fixed cadaveric hearts were examined. The number and pattern of the PVs were observed along with the measurement of their horizontal and vertical diameters. The ovality index for each PV was calculated. Classical PV pattern was observed in 62% cases. Variant pattern like additional right middle PV pattern and left common PV pattern were found in 20% and 10% cases respectively. A separate pattern with presence of both right middle PV and left common PV was observed in 6% cases. In the classical pattern right superior PV was the largest followed by right inferior, left superior and left inferior PV. The additional right middle PV had the smallest diameter whereas the left common PV had the largest diameter. Almost all the veins had greater vertical diameters in comparison to horizontal diameters. The variant PVs were oval and had greater ovality index compared to the normal PVs. In classical pattern 54.8% hearts whereas in variant pattern 79% hearts had one or more oval PV. The given data can help clinicians for planning and execution of various interventional and electrophysiological procedures involving PVs.

Clinical Analysis of Funnel Chest - Reports of 15 cases - (누두흉의 임상적 고찰;15례 보고)

  • Gang, Jeong-Ho;Ji, Haeng-Ok
    • Journal of Chest Surgery
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    • v.25 no.8
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    • pp.837-843
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    • 1992
  • The most common deformity of the sternum is the depression deformity, variously calid pectus Excavatum, funnel chest, schwusterbrust, trichterburst, thorax en entonnoir. During the period 1983 to 1991 a total of 15 cases of funnel chest were treated surgically at Department of Thoracic Surgery, Hanyang University Hospital. The age at the time of operation ranged from 4 to 26 years 73.3 percent of the patients were under 12 years of age They all had symptoms of feeling Inferiority about chest deformity. The concavity on the funnel chest varied in its Extent, and the severity, which was measured by water volume filled into it, varied from 45ml to 100ml. We have Experienced 15 cases of pectus Exc-avatum with several operative method, i.e., Ravitch operation in 2 cases, Taguchi operation in 3 cases[using by Both IMA], Adkins operation in 5 cases, Modified wada operation [sternal costal cartilage Elevation Technique] in 5 cases. After surgery, follow up vertebral Index showed 44%, preoperatively and 29% postoperatively, average decrement of 15%. We Reported 15 cases of funnel chest and the surgical results of thease cases were satisfactory Except one case of Ravitch operation.

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Study for the Deficiency and Excessiveness Diagnosis in the Front Point by Elastic State (모혈(募穴)의 탄력(彈力) 상태(狀態) 측정(測定)에 의한 허실(虛實) 진단(診斷) 연구(硏究))

  • Na, Chang-Su;Yoon, Yeo-Choong;Park, Hyun-Cheal;Lee, Dong-Kyu;Choi, Chan-Hern;Jang, Kyung-Sun;So, Cheal-Ho
    • Journal of Acupuncture Research
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    • v.17 no.1
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    • pp.27-41
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    • 2000
  • The meridian system is the most essential and basic connecting structure that maintains the vital activities of viscera and bowels by connecting them with each part of body's surface. Doctors can understand the healthy condition, and the region and deficiency-excessiveness of disease by observing the condition of Qi flowing. Deficiency and excessiveness could be differentiated by various symptoms expressed in meridian system. Especially there could be several clues like pain, heat-cold, protuberance-depression, change of color and shine in the line of channel leads to the judgment of deficiency-excessiveness The diagnosis of deficiency and excessiveness can be generalized by quantification of elastic status in skin surface along the meridian system. By comparing data from measurement of elastic condition with those from traditional deficiency and excessiveness, it could be utilized for the development of oriental medicine. All biological activities in the human body are based on meridian system according to the oriental medicine. Also the meridian system is viewed as basic and essential structure connecting internal viscera and each part of body. The areas of expressed channel phenomena are muscle to bone, muscle to muscle and bone to bone. These areas are called depression where meridian system is present and any changing state on those points can be measured. It could be difficult in diagnosing the reaction of meridian system because doctor can depend on his own judgment. Therefore, it is necessary to quantify and indexate channel reactions. To quantify the channel reactions, specially manufactured instrument was used to quantify the protuberance and depression to differentiate the deficiency and excessiveness. The results follow as below; 1. The elastic index measurement by the equipment proved a pattern of agreement showing the values that ranged within standard deviation 0.05kgf/cm throughout the experiment except few cases' measurement in CV-17. 2. To evaluate the state of deficiency & excessiveness of elastic index measurements in frontal point, elastic index measurements in the front paint were compared to the elastic index measured surrounding the point within 2.5 cm. Such result of indexing procedure was closely matched to the concept of palpitation. 3. If the elastic index values in the surrounding front point closely located to the elastic index values in the front point, the judgement on the state of deficiency and excessiveness was delayed. Otherwise, it was judged as deficiency or excessiveness. 4. Out of total 12 cases of comparing the elastic index values to the elastic index values in the surrounding front point, Three to nine front points were judged as either in the state of deficiency or excessiveness. 5. Among the nine front points judged as either in the state of deficiency or excessiveness, Four cases were matched to the electric index measured by EAV that evaluating the internal organs by five different phases. If more clinical cases are accumulated, it is expected to systematically theorize and improve the concept of deficiency and excessiveness in the internal organs using the front point.

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A Study of Optical Properties of Intraocular Lenses and of Measurement of the Index of Reflection for an Unknown Liquid

  • Joo, Won Don;Jung, Mee Suk
    • Journal of the Optical Society of Korea
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    • v.16 no.3
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    • pp.236-242
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    • 2012
  • In general, such methods as interferometers or wavefront sensors are commonly used for testing of an optical system and optical components. In these cases, the surrounding environments are unlikely to affect the measurements. On the other hand, intraocular lenses of hydrophilic materials with special properties experience a certain difficulty in testing the optical properties. An intraocular lens is dried in the air, which causes deformation and changes the optical characteristics such as index of refraction and thickness. Thus, it is hard to measure the optical characteristics of an intraocular lens by using common methods. In this study, a special structure is used for measuring of the transmission wavefront aberration and effective focal length of an intraocular lens of hydrophilic materials by using a Shark-Hartmann sensor among the various measuring methods. As an application of this measuring method, this study shows a simple method to measure the index of refraction of unknown liquids with a plano-convex lens with a well known index of refraction. Also, this method is used to measure the optical properties of a plano-convex such as index of refraction and curvature by using a liquid with a well known index of refraction.

Seven Cases Report on the Foot Drop Patients with Herniated Intervertebral Lumbar Disc by Muscle Energy Technique & Korean Traditional Medicine Therapy (근에너지기법 및 한방치료를 적용한 족하수를 동반한 요추추간판탈출증 환자 치험 7례)

  • Chung, Jai-Hyeon;Yun, Young-Ung;Cheong, Seong-Hyun;Kim, Tae-Ho;Choi, Young-Jun;Kim, Sin-Woong;Lee, Cha-Ro
    • The Journal of Churna Manual Medicine for Spine and Nerves
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    • v.9 no.1
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    • pp.27-37
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    • 2014
  • Objectives : The present study reports seven foot drop patients with herniated intervertebral lumbar disc treated by Muscle Energy Technique and Korean traditional medicine therapy. Methods : Seven foot drop patients with herniated intervertebral lumbar disc were treated by Muscle Energy Rechnique and Korean traditional medicine therapy and were assessed by Manual Muscle Test, numeric rating scale, and oswestry low back pain disability index. Results : Among seven foot drop patients, two cases showed complete recovery, three cases showed recovery over good grade, and two cases showed recovery over good grade after temporary weakness. numeric rating scale and oswestry low back pain disability index of all cases showed improvement. Conclusions : Seven foot drop patients with herniated intervertebral lumbar disc were treated by Muscle Energy Rechnique and Korean traditional medicine therapy and showed improvement. It is anticipated that this report benefits the future in depth study and clinical treatments on the foot drop symptom in korean medicine.

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A Clinical Reports on Psoriasis (乾癬患者 臨床報告)

  • Oh, Eun-Young;Park, Hye-seon;Gu, Duk-mo;Jee, Seon-young
    • The Journal of Korean Medicine Ophthalmology and Otolaryngology and Dermatology
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    • v.14 no.2
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    • pp.278-285
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    • 2001
  • A Reports were done on proriasis which were treated bv medications of Sasang Constitution and Constitution-Acupunture in Dept. surgery, opthalmology & otolaryngology, college of Oriental Medicine, Kyungsan University, Pohang, Korea, from May 30. 2000 to JUN 30 2001. we gave score and checked involvement, plaque, erythematous popules, invasiveness according to psoriasis area and severity index. The results were as follows: 1. Sasang Constitution classification was Soyanggin 11($93.33\%$), Taeumgin 1($6.67\%$) in the 15 cases, Hyungbangsabaeksan is used in 9 cases($60\%$), Yanggeuksanhoatang is used in 3cases($13.11\%$), Geopungchunggisan is used in 3 cases($20\%$), Hyungbangdojucksan is used in 1 case($6.57\%$) 2. In the 9 cases, we checked for over 4 weeks, clinical severity of involvement, plaque, total score(psoriasis area and severity index) was siginificantly decreased(p <0.05), clinical severity of erythematous popules, itching was decreased but It is not siginificant(p>0.05). 3. The mean duration of treatmemt was 73.3 days, result of Excellent or Good improvement was showed on over 120 days. These results indicate that Sasang Constitution and Constitution-Acupuncture treatment is effective on psoriasis and the more study is needed.

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Cumulative damage in RC frame buildings - The 2017 Mexico earthquake case

  • Leonardo M. Massone;Diego Aceituno;Julian Carrillo
    • Advances in Computational Design
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    • v.8 no.1
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    • pp.13-36
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    • 2023
  • The Puebla-Morelos Earthquake (Mw 7.1) occurred in Mexico in 2017 causing 44 buildings to collapse in Mexico City. This work evaluates the non-linear response of a 6-story reinforced concrete (RC) frame prototype model with masonry infill walls on upper floors. The prototype model was designed using provisions prescribed before 1985 and was subjected to seismic excitations recorded during the earthquakes of 1985 and 2017 in different places in Mexico City. The building response was assessed through a damage index (DI) that considers low-cycle fatigue of the steel reinforcement in columns of the first floor, where the steel was modeled including buckling as was observed in cases after the 2017 earthquake. Isocurves were generated with 72 seismic records in Mexico City representing the level of iso-demand on the structure. These isocurves were compared with the location of 16 collapsed (first-floor column failure) building cases consistent with the prototype model. The isocurves for a value greater than 1 demarcate the location where fatigue failure was expected, which is consistent with the location of 2 of the 16 cases studied. However, a slight increase in axial load (5%) or decrease in column cross-section (5%) had a significant detrimental effect on the cumulated damage, increasing the intensity of the isocurves and achieving congruence with 9 of the 16 cases, and having the other 7 cases less than 2 km away. Including column special detailing (tight stirrup spacing and confined concrete) was the variable with the greatest impact to control the cumulated damage, which was consistent with the absence of severe damage in buildings built in the 70s and 80s.

Correction of Upper Lip Depression Using Conchal Cartilage Graft in Unilateral Cleft Lip Deformity (일측구순열변형에서 이갑개연골이식술을 이용한 상구순 함몰의 교정)

  • Han, Ki-Hwan;Yun, Sang-Ho;Yeo, Hyun-Jung;Kim, Jun-Hyung;Son, Dae-Gu
    • Archives of Plastic Surgery
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    • v.38 no.4
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    • pp.383-390
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    • 2011
  • Purpose: To correct the upper lip depression after the correction of unilateral cleft lip, autologous grafts such as bone, dermal, fascial grafts and fat injections or alloplastic implants are used. Transplanted bones, dermis and fascia have a tendency to be absorbed and have donor morbidity. Fat injections are absorbed inconsistently and alloplastic implants have problems such as foreign body reactions, protrusions and infections. Authors corrected the upper lip depression using conchal cartilage graft in unilateral cleft lip deformity and the results was analysed with photos. Methods: 26-unilateral cleft lip and 2-microform cleft lip cases, totally 28 cases were performed. Their mean age was 21.89 years. The male and female cases were 12 and 16, respectively. Under anesthesia (general: 18 cases and local: 10 cases), cavum conchae (n=8), cymba conchae (n=16) and whole conchae (n=4) were harvested. Transversely cut the margin of the obtained cartilage, we cut out the most bent portion and put a partial-thickness incision on concave surface in cases of excessive convexity. Then, we performed the onlay graft of the conchal cartilage via scar revision site in unilateral cleft lip and via the reconstruction site of the cupid bow in microform cleft lip. The augmentation of the upper lip was evaluated with photos. Adapting the baseline connecting between the both cheilions as a horizontal standard line, we measured the highest point among the tangents between the upper lip and nose (point a), the lowest point (point c), the middle point between a and c (point b) and the vertical line from the alare (point d) to the horizontal standard line. To assess the postoperative symmetry, we compared cleft side upper lip contour index (%) A,B,C,D=(a,b,c,d)-ch ${\times}$ 100/(ch-ch) and non-cleft side upper lip contour index (%) A',B',C',D'= (a',b',c',d')-ch ${\times}$ 100 / (ch-ch).h) Results: After the surgery, no complication was found except in one case which double layers graft performed in the cleft lip deformity, the lateral portion was protruded. The upper lip contour index, the difference of A and A' were-0.83%, and thus the mild depression was persisted. Difference of B and B', C and C', D and D' were 0.83%, 1.07%, 0.90%. There were statistically significant difference, and thus the depression of upper lip were improved generally. Conclusion: Authors performed the onlay graft of the conchal cartilage in unilateral cleft lip deformity and found that the depression of the upper lip was well corrected except the uppermost part when photogrammetrically analyzed.

A Case-Control Study on Dietary Quality and Risk for Coronary Heart Disease in Korean Men (한국 남성에서 식사의 질과 관상동맥질환 발생 위험에 대한 환자-대조군 연구)

  • Oh, Kyung-Won;Nam, Jung-Mo;Park, Jung-Hwa;Yoon, Ji-Young;Sim, Ji-Sun;Lee, Kang-Hee;Seo, Il
    • Journal of Nutrition and Health
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    • v.36 no.6
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    • pp.613-621
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    • 2003
  • The purpose of this study was to investigate the association between dietary quality and the risk of coronary heart disease (CBD) among Korean men by a case-control study. Methods: The cases were 108 male patients with a first acute myocardial infarction or a new diagnosis of angina pectoris who were admitted to a university teaching hospital in Seoul. Controls were 142 age-matched patients admitted to the departments of ophthalmology and orthopedic surgery at the same hospital. Dietary information was assessed by a nutritionist using a semiquantitative food frequency questionnaire (FFQ), and dietary quality index (DQI) scores were calculated. Results: The intakes of total fat and cholesterol and body mass index (BMI) in cases were significantly higher than those in controls. The mean DQI scores were 8.6 for the cases and 9.4 for the controls. A higher DQI, which was indicative of a better quality diet, was inversely associated with the risk of CHD when comparing the highest to lowest quatiles, but borderline significant (odd ratios 0.60, 95% confidence interval 0.25-1.39, P for trend = 0.05). Conclusions: Our findings suggest that better dietary quality may reduce the risk of CHD among Korean men.