1.Cerebral Postischemic Hyperperfusion in PET and SPECT.
Korean Journal of Nuclear Medicine 2001;35(6):343-351
No abstract available.
Tomography, Emission-Computed, Single-Photon*
2.Congenital Uterine Cyst: A case report.
Korean Journal of Pathology 1996;30(10):954-956
I experienced a case of a congenital intramural cyst of the uterine fundus. On examination by light and electron microscope it was composed of a single layer of thin atrophied lining epithelium without secretory activity and was found to be derived from the paramesonephric duct. This case is presented with a brief review of the literature.
Cysts
3.The Use of A Cast-Brace in the Treatment of Fracture of the Long Bone of Lower Extremities
The Journal of the Korean Orthopaedic Association 1976;11(3):419-426
The use of a cast-brace in the treatment of tibial fractures was first applied by the authors since 1964 in an attempt to prevent stiffness of the knee resulted from prolonged cast immobilization. The authors attempts on all 43 cases throughout the experimental period were proved satisfactory, among which, however, only a few case showed unwanted result such as delayed union in the early clinical experience.
Immobilization
;
Knee
;
Lower Extremity
;
Tibial Fractures
4.Photoelastic analysis of stresses induced by various superstructures on the endosteal implant.
The Journal of Korean Academy of Prosthodontics 1993;31(4):679-686
No abstract available.
5.An effect of immediate dentin sealing on the shear bond strength of resin cement to porcelain restoration.
The Journal of Advanced Prosthodontics 2010;2(2):39-45
PURPOSE: The aim of this study was to determine differences in shear bond strength to human dentin using immediate dentin sealing (IDS) technique compared to delayed dentin sealing (DDS). MATERIAL AND METHODS: Forty extracted human molars were divided into 4 groups with 10 teeth each. The control group was light-cured after application of dentin bonding agent (Excite(R) DSC) and cemented with Variolink(R) II resin cement. IDS/SE (immediate dentin sealing, Clearfil(TM) SE Bond) and IDS/SB (immediate dentin sealing, Adapter(TM) Single Bond 2) were light-cured after application of dentin bonding agent (Clearfil(TM) SE Bond and Adapter(TM) Sing Bond 2, respectively), whereas DDS specimens were not treated with any dentin bonding agent. Specimens were cemented with Variolink(R) II resin cement. Dentin bonding agent (Excite(R) DSC) was left unpolymerized until the application of porcelain restoration. Shear strength was measured using a universal testing machine at a speed of 5 mm/min and evaluated of fracture using an optical microscope. RESULTS: The mean shear bond strengths of control group and IDS/SE group were not statistically different from another at 14.86 and 11.18 MPa. Bond strength of IDS/SE group had a significantly higher mean than DDS group (3.14 MPa) (P < .05). There were no significance in the mean shear bond strength between IDS/SB (4.11 MPa) and DDS group. Evaluation of failure patterns indicates that most failures in the control group and IDS/SE groups were mixed, whereas failures in the DDS were interfacial. CONCLUSION: When preparing teeth for indirect ceramic restoration, IDS with Clearfil(TM) SE Bond results in improved shear bond strength compared with DDS.
Bisphenol A-Glycidyl Methacrylate
;
Ceramics
;
Collodion
;
Dental Porcelain
;
Dentin
;
Humans
;
Molar
;
Resin Cements
;
Shear Strength
;
Tooth
6.Preoperative Planning of Oblique Femoral Trochanteric Osteotomy by Geometric Analysis
The Journal of the Korean Orthopaedic Association 1995;30(5):1469-1480
Oblique single-plane trochanteric osteotomy, in which an oblique cut is made through the femoral trochanteric area and the bony fragments are rotated at the face of the cut in direct contact with each other, allows simulatenous correction of the femoral neck-shaft angle, femoral anteversion as well as flexion/extension effect. Only approximate methods of calculating the correction effects of this procedure have been introduced. Considering unique spatial orientation of femoral neck, we developed a rigorous method to calculate preoperatively the obliquity of the single-plane osteotomy and the amount of rotation required to achieve the target femoral conformation, through geometric analysis. The correction effect by oblique trochanteric osteotomy on the geometry of proximal femur was dependent not only on the amount of change of the neck-shaft angle and femoral anteversion but also on the preoperative neck-shaft angle and femoral anteversion themselves. The flexion/extesion effect was determined by the direction of the correction and the preoperative neck orientation. Computer graphic simulation study confirmed the validity of this method. A program written in QBASIC was introduced to make this complex calculation method more useful in the clinical practice.
Computer Graphics
;
Femur Neck
;
Femur
;
Methods
;
Neck
;
Osteotomy
7.CT findings of Desmoid tumor arising at Abdominai Wall.
Dae Hyoun CHO ; Jae Ho CHO ; Jae Chun CHANG
Yeungnam University Journal of Medicine 1995;12(2):386-392
Desmoid tumor is a type of fibromatosis usually arise in deep musculo-aponeurotic structures, primarily of the trunk and extremities. It is characterized by proliferation of fibroblastic tissue and does not metastasize but may be locally aggressive. Eventhough the surgical margin reveals clean, recurrence often occurs. To analyze the extent of the tumor and homodynamic characteristics exactly, we performed IV bolus CT. Desmoid tumors show peripheral rim enhancement on early phase scan and more strong, central enhancement on late phase IV bolus CT, which reflects abundant fibroblastic components of the tumor. We report two cases of pathologically confirmed desmoid tumor performed IV bolus CT.
Abdominal Wall
;
Extremities
;
Fibroblasts
;
Fibroma
;
Fibromatosis, Aggressive*
;
Recurrence
8.A Mycological Study on the Distribution of Candida Species in Normal Human Skin.
Korean Journal of Dermatology 1985;23(5):597-606
This study was done on 171 volunteers in order to investigate the present status of cutaneous normal flora of Candida species and the distribution of Candida species on the normal human skin in dermatologic clinic of Korea University Hospital from January, ]984 to December, 1984. Among the 171 volunteers, 115 strains of Candida species were identified by culture on the Sabouraud's dextrose agar media, germ tube test, sugar assimilation test, sugar fermentaion test and culture on corn meal with Tween 80 media, The results were summarized as follows: 1. The incidence of cutaneous normal flora of Candida species was 13, 5,5 (115 species among 855 sites) 2. Candida species were distributed in oral cavity(45 species), 4th interdigital toe web(39 species), groin(12 species), axilla(11 species) and 4th interdigital finger web(8 species) in order of frequency. 3, Of ll5 species, 45 species were cultured in summer, 27 species in autumn, 18 species in winter and 14 species in spring. 4 Of 115 Candida species, C. albicans(88 species), C. parapsilosis(12 species), C, tropicalis(8 species), C. guilliermondii(3 species) and C. stellatoidea(2 species) were identified. Two species could not be identified.
Agar
;
Candida*
;
Fingers
;
Glucose
;
Humans*
;
Incidence
;
Korea
;
Meals
;
Polysorbates
;
Skin*
;
Toes
;
Volunteers
;
Zea mays
9.Summertime Heat Waves and Ozone : an Interaction on Cardiopulmonary Mortality? - Based on the 1994 Heat Wave in Korea -.
Joohon SUNG ; Ho KIM ; Soo Hun CHO
Korean Journal of Preventive Medicine 2001;34(4):316-322
OBJECTIVES: To explore the possible effect of an interaction between summertime heat waves and ozone on cardiopulmonary mortality during the 1994 heat wave in Korea. METHODS: The unusually hot summer of 1994 in Korea was defined as the heat wave in this study. We examined the associations of air pollutants with daily cardiopulmonary deaths between 1991-1995, considering the product term of the heat wave and each pollutant, weather and time trends. RESULTS: During the heat wave, while temperatures were uniformly higher than those of other summers, the within-heat-wave difference in mortality paralleled that in the regional ozone levels. In terms of the influence of the heat wave, the results of ozone were different to those of total suspended particles (TSP) and sulfur dioxide (SO2). The ozone association (relative risk (RR) =1.036; 95% confidence interval (CI) = 1.018-1.054) was observed only under heat wave conditions, while the TSP (RR =1.006, 95% CI = 0.999-1.012) and the SO2 (RR =1.018, 95% CI = 1.011-1.024) associations were found under normal weather conditions (per interquartile increase of each pollutant; results of three pollutants model). The ozone association under heat wave was attributable to the statistical interaction between the heat wave and ozone. CONCLUSIONS: These results support the possibility of a biological synergy between the heat wave and ozone, one that is not evident between the heat wave and other major pollutants like particles or SO2.
Air Pollutants
;
Air Pollution
;
Hot Temperature*
;
Infrared Rays*
;
Korea*
;
Mortality*
;
Ozone*
;
Sulfur Dioxide
;
Weather
10.The Effect of Deep Breathing Exercise and Incentive Spirometry to Prevent Postoperative Pulmonary Complications after Abdominal Surgery in Geriatric Patients.
Chul LIM ; Hun CHO ; Sung Ho CHANG
Korean Journal of Anesthesiology 1997;33(6):1185-1191
BACKGROUND: The purpose of this clinical study was to evaluate the Incentive Spirometry (IS) and Deep Breathing Exercises (DBE) to prevent postoperative pulmonary complications after abdominal surgery in patients over 60 years of age. METHODS: We prospectively randomized 90 patients into 1 of 3 groups: the control group (30 patients) received no respiratory treatment, the IS group (30 patients) was treated with incentive spirometry 4 times daily and DBE group (30 patients) carried out deep breathing exercises under supervision for 15 min 4 times daily. ABGA was taken at ward, PR (preop.room), RR (recovery room), POD1 day and POD2 day. Roentgenographic changes observed at 24 h. and 48 h. after surgery. Pulmonary complications were defined as the development of 3 or more of 6 new findings: cough, sputum, dyspnea, chest discomfort, temperature greater than 38oC, pulse rate more than 100 beats/min. RESULTS: PaO2 in the DBE group and IS group at PR were significantly increased than the values at ward, and the values of the PaO2 in the DBE group at RR and POD1 day, and those of IS group at PR and POD2 day were significant higher than those of the control group (p<0.05). The frequency of development of pulmonary complications (43.3% in the control group, 20% in the DBE group, 20% in the IS group) and roentgenographic changes were comparable in the 3 groups (26.7%, 16.7%, 20% respectively). The DBE group showed the different incidence of postoperative pulmonary complications between upper and lower abdominal surgery (upper: lower= 35.7: 6.3%). CONCLUSIONS: We concluded that DBE and IS were effective in preventing postoperative pulmonary complications after abdominal surgery and lower abdominal surgery causes lesser postoperative pulmonary complications than upper abdominal surgery.
Breathing Exercises
;
Cough
;
Dyspnea
;
Heart Rate
;
Humans
;
Incidence
;
Motivation*
;
Organization and Administration
;
Prospective Studies
;
Respiration*
;
Spirometry*
;
Sputum
;
Thorax