• Journal of radiological science and technology
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• v.25 no.2
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• pp.35-38
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• 2002

Recently, They are usually recording the patient information on the Hospital Information System. In the department of Radiology, For the purpose of assuming patient exposed dose, Authors contrived the mathematical calculation model by use of x-ray out put data on the Excel program, if they in put the exposure factors (kVp, mAs, thickness), the program could automatically calculate the patient Skin dose. The assuming data by three dimensional equation has average errors within ${\pm}5%$, there for We could make good use of clinical field in department of radiology.

• Journal of radiological science and technology
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• v.3 no.1
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• pp.21-27
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• 1980

It is the experimental report by using 17cm, 19cm in thickness water-phantom to investigate optimum tube voltage in taking skull roentgenography. The obtained results are as follows: 1. An adequate kVp for P-A projection is range from 80-90. 2. An adequate kVp for lateral projection is range from 75-85.

• Radiation Oncology Journal
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• v.18 no.4
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• pp.314-320
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• 2000

Purpose :To investigate whether changes in plasma concentrations of transforming growth factor-$\beta$1(TGF-$\beta$1), tumor necrosis factor-alpha (TNF-$\alpha$) and interleukin-6 (IL-6) could be used to identify the development of radiation-induced pneumonitis in the lung cancer patients. Methods and Materials :Seventeen patients with lung cancer (11 NSCLC, 6 SCLC) were enrolled in a prospective study designed to evaluate clinical and molecular biologic correlation of radiation-induced pneumonitis. The study began in May 1998 and completed in July 1999. All patients were treated with radiotherapy with curative intent : 1.8 Gy per day, 5 fractions per week. Serial measurements of plasma TGF-$\beta$1, TNF-$\alpha$ and IL-6 were obtained in all patients before, weekly during radiotherapy and at each follow-up visits after completion of treatment. These measurements were quantified using enzyme linked immunosorbent assay (ELISA). All patients were evaluated for signs and symptoms of pneumonitis at each follow-up visit after completion of radiotherapy. High resolution CT (HRCT) scans were obtained when signs and symptoms of pneumonitis were developed after completion of radiotherapy. Results : Thirteen patients eventually developed signs and symptoms of clinical pneumonitis 씬file four patients did not. TGF-$\beta$ 1 levels were elevated in all 13 patients with pneumonitis, which showed characteristic pattern of elevation (38.45 ng/ml at pretreatment, 13.66 ng/ml during radiotherapy, then 60.63 ng/ml at 2-4 weeks after completion of radiotherapy). The levels of TNF- $\alpha$ and IL-6 were also elevated In the group of patients who developed pneumonitis but the pattern was not characteristic. Conclusions : Changes in plasma TGF$\beta$-1 levels before, during and after radiotherapy appears to be a useful means by which to identify patients at risk for the development of symptomatic pneumonitis. Other cytokines like TNF- $\alpha$ and IL-6 shows no meaningful changes in association with radiation pneumonitis.

• Journal of Chest Surgery
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• v.39 no.12 s.269
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• pp.946-948
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• 2006

The patient was a 42-year-old female with breast cancer who had an implantable central venous catheter inserted percutaneously into left subclavian vein for chemotherapy. The postinsertion chest x ray revealed that there was no compressive sigh of catheter. Three months after insertion of the catheter, the patient was admitted to the hospital for 4th chemotherapy. The port was accessed but blood could not be aspirated and the catheter could not be flushed. A chest x ray revealed that the catheter was completely transected at the point where the catheter passed under the clavicle. Percutaneous removal of the distal fragment of the catheter was accomplished. The patient was discharged after successful removal of fragment of catheter.

• Journal of Acupuncture Research
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• v.21 no.6
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• pp.195-207
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• 2004

목적 : 경추통에 대한 침구치료의 효과여부가 현재까지 시행된 무작위 대조군 시험의 검토에서 논란이 되고 있는데, 경추통에 대한 치료 효과의 검증에 최근 들어 경추 전만각도의 변화를 측정하는 것이 점차 많이 사용되고 있는 실정이다. 하지만 아직까지 변형된 형태의 경추 견인 등 몇몇 요소들이 경추전만을 변화시켰다는 보고는 있었으나, 침치료 중 深刺의 방법이 경추의 만곡을 변화시켰다는 보고는 없었다. 방법 : 자침의 방법 중 深刻(五刺法 중 合谷刺 또는 關刺)방법이 경추 전만의 변화를 주는가에 대하여 검증하기 위하여 심자 치료를 시행한 19명의 실험군과 치료를 시행하지 않고 단순히 방사선 촬영만 시행한 21명의 대조군의 단순 방사선 사진을 후향적 연구의 방법으로 비교하였으며, 아울러 심자 자침군에서는 VAS를 측정하여 통증의 정도의 변화를 함께 연구하였다. 결과 : 연구결과 자침을 시행하지 않은 대조군에서는 VAS와 경추 전만의 Cobb각도에서 유의성 있는 변화가 나타나지 않았으나, 심자의 방법으로 자침한 군에서는 치료 전후의 VAS가 유의한 차이를 나타내었고, 경추의 전만 각도에서도 경추 2번과 7번 사이의 Cobb의 각도에서 유의성 있는 변화를 나타내었다(p < 0.05). 결론 : 이러한 연구 결과들은 심자의 자침방법이 경주의 통증을 줄여줄 뿐만 아니라 경추의 구조적 변화를 일으킬 수 있음을 나타내 주는 것이다.

• The korean journal of orthodontics
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• v.41 no.3
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• pp.164-173
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• 2011

Objective: The purpose of this study was to perform gender-wise analysis of the related cephalometric factors affecting Korean patients with obstructive sleep apnea (OSA). Methods: We examined 118 adults who had visited the Sleep Disorder Clinic Center in Keimyung university, Daegu, Korea, and evaluated them by using poly-somnography (PSG) and lateral cephalograms. The patients were divided into 4 groups (male simple snorers, male OSA patients, female simple snorers, and female OSA patients) according to AHI (apnea-hypopnea index) and sex. Results: The position of the hyoid bone in the female OSA group was inferior to that in the female simple snorer group. Multiple regression analysis showed that tongue length and soft palate width were significant determinants for the severity of AHI in male OSA patients. However, inferior position of the hyoid was a significant determinant only in women. Conclusions: From a cephalometric point of view, OSA in male and female adult patients may be characterized by different pathogeneses. In particular, in female OSA patients, they might be managed by individualized treatments such as hormone replacement therapy in addition to conventional treatment.

• Radiation Oncology Journal
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• v.19 no.2
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• pp.136-141
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• 2001

Purpose : To evaluate the significance of serum SCC for the monitoring of treatment response and the early detection of distant metastasis during radiotherapy (RT). Materials and Methods : In 13 patients with histologically proven primary squamous cell carcinoma of uterine cervix, serum SCC values were checked in pre-RT point, weekly during RT, and in post-RT point. Results : In 4 of 13 cases, metastasis appeared at the end of external RT, so that intracavitary radiation couldn't be peformed.01 these 4 cases,3 with elevated pre-RT SCC level, who resulted in lung metastasis on chest PA at the end of external RT showed decreased post-RT SCC value despite of metastasis. Of all 10 cases with elevated pre-RT SCC value (including 3 with metastasis at the end of external RT), SCC value was higher than pre-RT value in 7 at 9 Gy and the difference was statistically significant. At 18 Gy, SCC was higher in 4 and lower in 6 than pre-RT value. After 18 Gy, SCC value decreased continuously to the end of RT in all 10 cases. Conclusion : During RT, SCC value increased initially at 9 Gy. To 18 Gy, SCC value decreased to the nearly same with pre-RT value. After 18 Gy, to the end of RT, SCC value decreased continuously and normalized in completely responded cases. In cases with appearance of lung metastasis, SCC value also decreased with the disappearance of main mass of uterine cervix despite metastasis.

• Journal of Oral Medicine and Pain
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• v.33 no.2
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• pp.195-204
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• 2008

Osteoarthritis is caused by joint degeneration, a process that includes progressive loss of articular cartilage accompanied by attempted repair of articular cartilage, remodeling and sclerosis of subchondral bone, and osteophyte formation. The most common causative factor that either causes or contributes to osteoarthritis is overloading of the articular structures of the joint. The diagnosis of temporomandibular joint(TMJ) osteoarthritis is based on the patient's history and clinical findings such as limited mandibular opening, crepitation and tenderness to palpation on TMJ. The diagnosis is usually confirmed by TMJ radiographs, which will reveal evidence of structural changes in the subarticular bone of the condyle or fossa. Plain radiography techniques such as panoramic, transcranial, transpharyngeal views can be used in most dental offices for evaluation of the TMJs. However, plain radiographs are often limited due to overlapping and distortion of anatomical structures. The aim of this study was to compare the clinical examination and panoramic view with computed tomography for diagnosis of temporomandibular degenerative joint disease, and to compare the findings of condylar bony changes through panoramic radiography with that of computed tomography, hence, to confirm the limitations of clinical and panoramic radiography, and the validity of the computed tomography for diagnosis of temporomandibular degenerative joint disease. The pathophysiology of the TMJ osteoarthritis remains poorly understood, and current treatments are based more on speculation than science, and symptomatic treatments often fail to provide satisfactory pain relief. For diagnosis of TMJ osteoarthritis, clinical examination and radiographic examination for confirmation of the bony changes are essential, and computed tomography are clearly superior to plain radiographs for their limitations.

• Journal of radiological science and technology
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• v.31 no.4
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• pp.323-327
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• 2008

Porcelain gallbladder is a rare disorder by deposition of calcium in the wall of gallbladder. The chronic cholecystitis is reported to produce mural calcification and obstruction to the cystic duct by stone. Since porcelain gallbladder is commonly associatedwith gallbladder cancer, cholecystectomy is prerformed to prevent it. We report here a case of a patient with porcelain gallbladder. This case showedthe typical ultrasonogaphic, computer tomogaphic and radiaographic findings of the disease.

• Nuclear industry
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• v.36 no.3
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• pp.6-15
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• 2016

우리나라가 급속한 성장을 이루는 과정에서 원자력은 이를 뒷받침하며 함께 성장해 왔다. 그러나 그 과정에서 안전보다 성과를 강조하다보니 안전을 경시하는 비정상적 환경이 조성되었다. 그 결과 숨겨져 있던 과거의 원전 비리가 수면 위에 드러났고, 같은 시기에 후쿠시마 사고로 인한 오염수 유출과 전력난까지 발생하면서 국민의 불안과 불신을 가중시켰다. 국민들은 정부가 불안감을 해소해 주고 원칙을 지키는 안전규제, 신뢰할 수 있는 안전규제를 마련할 것을 요구하고 있다. 원자력 안전규제의 독립성을 확보하기 위해 지난 2011년 설립된 원자력안전위원회는 출범 이후 새로운 안전규제 제도 시스템을 마련하는 데 총력을 기울여 왔다. 원전 비리 같은 비정상 관행을 근절하기 위해 공급자 검사 제도, 성능검증기관 관리 제도 등 새로운 규제 시스템이 마련되었고, 방사선 작업 종사자 보호 강화와 생활 주변 방사선 감시 효율성 제고를 위한 다양한 제도적 장치들도 구비되었다. 이외에도 원자력안전규제기금 설치, 원전 부지별로 설치된 원자력안전협의회 실효성 제고 등 소통과 협업을 위한 시스템을 정착시켰다. 그러나 단순히 제도와 시스템이 만들어졌다고 해서 원자력 안전이 저절로 확보되는 것은 아니다. 차고 다닐 옥의 종류가 바뀌면 걸음걸이도 바꾸어야 한다는 개옥개행(改玉改行)의 고사성어에서처럼 제도가 바뀌면 그에 따른 일하는 방식 문화가 달라져야만 변경된 제도 시스템이 완전히 정착될 수 있을 것이다. 이를 위해서는 규제기관의 노력도 중요하지만 무엇보다 필요한 것은 원전 및 방사선 관련 사업자, 이해 관계자 나아가 일반 국민들이 이러한 달라진 제도 시스템을 이해하고 이에 적극 협조해 나가는 것이다. 본 기획 기사는 그러한 취지에서 그간 원자력안전위원회가 안전규제를 공고히 하기 위해 추진해 왔던 주요 규제 정책, 제도들을 소개하는 데 주안점을 두었으며, 이를 통해 원전 및 방사선 관련 사업자와 일반 국민들의 이해를 바탕으로 새로운 제도 시스템이 조기에 성공적으로 정착될 수 있기를 희망한다.