• 치위생과학회지
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• 제23권4호
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• pp.343-350
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• 2023

Background: Digital panoramic dental X-ray equipment (PDX) is frequently used by patients and dental workers for diagnosis and examination in dental institutions; however, infection control has not been properly implemented. Therefore, in this study, we aimed to systematically review the potential risk of cross-infection in the dental environment by investigating the contamination level of general aerobic bacteria and Staphylococcus aureus, which are important in hospital infections, in PDX areas that people mainly contact. Methods: This survey was conducted from March to May 2023 and covered one general hospital, three dental hospitals, and nine dental clinics equipped with PDX. Bacteria samples were collected from the left-handle, right-handle, forehead support, and head side support as the patient's contact areas, as well as the X-ray exposure switch and left-click mouse button as the dental hygienist's contact areas of the PDX. The collected bacteria were spread on Petrifilm, and colonies formed after 48 hours of culture were counted. Results: General aerobic bacteria and S. aureus were detected in all areas investigated. Significant differences in bacterial counts between different regions of the PDX were observed in both groups (p<0.001). The detection rates of general aerobic bacteria (p<0.001) and S. aureus (p<0.001) were significantly higher in the contact areas of patients than those of dental hygienists. A positive correlation was observed between the forehead and the temple region in terms of general aerobic bacteria and S. aureus detection (r=1) (p<0.01). Conclusion: Taken together, the presence of many bacteria, including S. aureus, detected in PDX indicates that PDX has a potential cross-infection risk. Our results therefore highlight the need for the development of appropriate disinfection protocols for reusable medical devices such as PDX and periodic infection prevention training for hospital-related workers, including dental hygienists.

• 한국재료학회지
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• 제26권11호
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• pp.623-627
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• 2016

$La_{1-x}Ba_xMnO_3$ (x = 0.30, 0.35 and 0.40) samples have been prepared by solid-state reaction method. The X-ray diffraction (XRD) study showed that all the samples crystallized in a rhombohedral structure with an R-3c space group. Variation of the magnetization as a function of the temperature and applied magnetic field was carried out. All the samples revealed ferromagnetic to paramagnetic (FM-PM) phase transition at the Curie temperature $T_C{\sim}342K$. The magnetic entropy change was also studied through examination of the measured magnetic isotherms M(H, T) near $T_C$. The magnetocaloric effect was calculated in terms of the isothermal magnetic entropy change. The maximum entropy change reaches a value of 1.192 J/kgK under a magnetic field change of 2.5T for the $La_{0.6}Ba_{0.4}MnO_3$ composition. The relative cooling power (RCP) is 79.31 J/kg for the same applied magnetic field.

• Journal of Chest Surgery
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• 제39권8호
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• pp.648-651
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• 2006

53세 여자가 내원 4일 전부터 심해지는 객혈을 주소로 내원하였다. 흉부 X-선상 우상엽에 고립성 폐결절이 보였고, 흉부 컴퓨터 단층 촬영상 우상엽 후분절 기관지를 막고 있는 결절을 보였다. 기관지 내시경적 검사로 우상엽 후분절 기관지를 완전히 막고 있는 부스러지기 쉬운 황색과 갈색의 진흙 같은 덩어리가 보였고 생검 병리학적 검사로 국균종으로 진단되었다. 환자는 지속되는 객혈로 인해 우상엽 및 우중엽 절제술을 시행하였다. 기관-기관지 국균증은 면역기능이 정상인의 경우에는 아주 드물게 나타나는 형태의 국균증이기에 우리나라 문헌에서 보고된 기관지 내 국균증의 고찰과 함께 비교하여 본 증례를 보고하는 바이다.

• 대한추나의학회지
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• 제4권1호
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• pp.141-153
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• 2003

Objectives : The purpose of this study is researching for correlation between Moire topography results and questionnaire which include obesity rate, height, weight, posture, pain aspect (low back pain, headache, fatigue, neck pain etc), studying posture, school attendance method, menarche. Methods : The authors practiced Moire topography and questionnaire for primary & middle school 24,419 students [male 12,843, female 11,576] in Jeonbuk, korea in 2002. After we distinguished students who had abnormal finding in Moire topography and statistically analysed the data. Results : According to this research, the abnormal finding in Moire topography results was 37.3% (9,105 students), and students needed X-ray re-examination were 3.9% (953 students). According to statistical analysis, male/female and primary/middle school students have no difference in deformity degree of the body surface examined by Moire. Height and weight have low correlation with deformity degree of the body surface examined by Moire and menarche, pain aspect have no correlation. But, school attendance method by bicycle and $90^{\circ}$upright sitting in study posture is the best way to decrease the deformity degree of the body surface examined by Moire. Conclusions : Following this research, throughout Moire topography could detect trunk asymmetry that couldn't be found existing X-ray examination, and school attendance by bicycle and $90^{\circ}$upright sitting in study posture is good for school students to prevent back deformity.

• 농촌의학ㆍ지역보건
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• 제14권1호
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• pp.16-29
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• 1989

The general objective of this study is to grasp the treatment expenses of common diseases by character of medical care institutions. The specific objective is to find out the treatment expenses for selected common diseases by type of medical care institutions and also by level of symptom. A record review method was employed to obtain required information for the analysis of expenses. A total of 40,000 cases treated by 85 medical care institutions were selected by the study team during the period 22 June to 14 July 1988. The 85 medical care institutions were sampled by stratified proportionate random sampling method. The major findings obtained from the information collected by the study team are as follows ; 1) Treatment expenses were composed of physical examination, medication, injection anesthesia, rehabilitation surgical intervention, lab test, X-ray and diagnosis. The highest expenses was for medication, accounted for 36.7% of the total: 13.9%, injection; Lab, tests respectively: 10.5%, physical examination : 8.6% surgical intervention; 7.9% admission : 6.3%, X-ray and diagnosis: 1.5%, rehabilitation. 2) Treatment expenses per case of common diseases were quite different from not only type of medical care institutions, such as university hospital, general hospital, hospital and clinic, but also from level of symptom. 3) Treatment expenses per case for the aged were higher than that of the young. The treatment cases for over 60 years of age accounted for 19.4% of the total, however the proportion of treatment expenses accounted for 23.8% of the total. 4) Duration of treatment and visits for same diseases varied from type of medical cara institutions. Based on these study findings, the following further research should be conducted: (1) Establishment of health care delivery system. (2) Feasibility of the development of health care programme for the aged. (3) Strengthening for primary health care approach.

• 한국임상수의학회지
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• 제6권1호
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• pp.185-191
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• 1989

A dog which was hospitalized to Veterinary Teaching Hospital, College of Veterinary Medicine, Jeonbug National University on December 28, 1988 was revealed severe anemia: hemoglobinuria and weakness. In the inspections, abdominal pain and spleno megaly at the ventral abdomen were detected by palpations. In the examinations of blood, the obtained results were summarized as follows: Babesla spp. was identified on the blood smear stained with Giemsa. The Babesia spp. was assumed to the Babesia gibsoni for the their small size and pleomorphism such as comma form, ring form and dot form. In the blood examinations of the patient, Ht: 22.5％, RBC:354${\times}$10$^4$/${\mu}\ell$, Hb: 8.8g/dl, serum protein: 8g/dl, and WBC count was 21, 425/${\mu}\ell$. In the chemical examinations of serum, the value of AST(GOT) was 30iu and ALT(GPT) was 20iu, respectively. The blood sugar was 60mg/d1. In the urine test, urine protein was 30mg/d1 and the hemoglobin In the urine was the ＋＋＋ and occult blood reaction(Benzidine test) in the feces was ＋＋＋. Splenomegaly was confirmed by X-ray examination. To confirm for the Babesia spp. infection, 5ml of the whole blood of the patient(3％ of Parasitized erythrocytes) were inoculated into the cephalic vein of the two normal dogs. In the blood of experimental dogs which were inoculated parasitized blood, Babesia spp. was detected in the two doss and pleomorphic parasites were observed, too. In the blood examinations of No. 1 the Ht and RBC were decreased to 6.8％ and 52${\times}$10$^4$/${\mu}\ell$, respectively. WBC count was 10.600/${\mu}\ell$ and serum protein was 6.8g/dl. The rates of parasitized erythrocytes were 15％ in the experimental dog. Also ＋＋＋ of the hemoglobin was detected in the urine. In the X-ray examination, splenomegaly was comfirmed and it was confirmed by autopsy of the experimental dog(No. 1).

• Imaging Science in Dentistry
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• 제37권2호
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• pp.69-77
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• 2007

Purpose: To evaluate the accuracy of the imaging reformation of cone beam computed tomography for the assessment of bone defect healing in rat model. Materials and Methods: Sprague-Dawley strain rats weighing about 350 gms were selected. Then critical size bone defects were done at parietal bone with implantation of collagen sponge. The rats were divided into seven groups of 3 days, 1 week, 2 weeks, 3 weeks, 4 weeks, 6 weeks, and 8 weeks. The healing of surgical defect was assessed by multi planar reconstruction (MPR) images and three-dimensional (3-D) images of cone beam computed tomography, compared with soft X-ray radiograph and histopathologic examination. Results: MPR images and 3-D images showed similar reformation of the healing amount at 3 days, 1 week, 2 weeks, and 8 weeks, however, lower reformation at 3 weeks, 4 weeks, and 6 weeks. According to imaging-based methodologies, MPR image revealed similar reformation of the healing amount than 3-D images compare with soft X-ray image. Among the four threshold values for 3-D images, 400-500 HU revealed similar reformation of the healing amount. Histopathologic examination confirmed the newly formed trabeculation correspond with imaging-based methologies. Conclusion: MPR images revealed higher accuracy of the imaging reformation of cone beam computed tomography and cone beam computed tomography is a clinically useful diagnostic tool for the assessment of bone defect healing.

• Journal of Chest Surgery
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• 제11권1호
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• pp.97-101
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• 1978

Primary cyst of the diaphragm is a rather uncommon disease. This is a report of a case of diaphragmatic cyst, located in the tendinous portion of the right diaphragm. The patient had no specific symptoms in the respiratory systems, but suffered from gastrointestinal symptoms [indigestion, epigastralgia, and loss of appetite etc.] for 2 months. Accidentally, on a simple chest x-ray examination, a round homogenous mass density was discovered. Tomography showed a well circumscribed parenchymatous mass. So a coin lesion in the medial segment of the right lower lobe was suspected. A thoracotomy was performed. There were no pathological findings in the lung and pleura. A ping-pong ball sized round mass, which was soft, elastic and fluctuated,was noted in the tendinous portion of the diaphragm. It was enucleated completely without diaphragmatic rupture, and diagnosed as a primary diaphragmatic cyst [fibrous-walled] by the histopathologic examination. Postoperative course was uneventful.

• 한국임상수의학회지
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• 제18권4호
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• pp.434-437
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• 2001

A female Russian blue cat has invited Animal Hospital because of diarrhea after the mating. The eggs on internal parasite and Giardia sp. were diagnosed in the feces floating test, and treated with metronidazole, pyrantel pamoate and antibiotics. There were no diarrheal sign in the reevaluation, but anorexia, polydipsia, polyuria, and vaginal discharge was newly induced. Streptococcus sp. was inspected by smearing of vaginal discharge, and enlarge-ment of uterus was evaluated by x-ray examination. This case was confirmed as pyometra and recovered by ovariohysterectomy on the basis of that examination. The rate of incidence in feline pyometra is not so high as in the canine.

• Journal of Trauma and Injury
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• 제26권4호
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• pp.319-322
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• 2013

A 66 year-old woman had cervical spinal cord injury by an automobile. We performed emergency operation for partial quadriplegia. She recovered from motor weakness gradually, but complained of abdominal distension and mild dyspnea. A physical examination of her abdomen did not have tenderness and rebound tenderness. She underwent a decubitus view of chest X-ray due to aggravated dyspnea at postoperative 4 days. We detected free air gas of abdomen and immediately identified a cause of pneumoperitoneum by abdominal computed tomography. We performed an emergent laparotomy and confirmed a jejunal perforation. After an operation, she recovered well and is under rehabilitation.