1.Measurement of glomerular filtration rate with radionuclide plasma clearence method.
Kang Wook LEE ; Young Tai SHIN
Korean Journal of Nephrology 1993;12(1):36-43
No abstract available.
Glomerular Filtration Rate*
;
Plasma*
2.The Diagnosis Distribution in Health Examination of Old Aged People and Associated Sociodemographic Factors.
In Ho KIM ; Kang Eun LIM ; Tai Woo LIM
Journal of the Korean Geriatrics Society 2001;5(1):67-77
BACKGROUND: According as old aged people have an increased interest in early detection of disease and health promotion, old aged people who take health examinations are increased. So this study is aimed to survey common problems about geriatric health in community and their frequency by way of investigation on diagnosis in health examination data and to evaluate the effects of health risk factors on each disease patterns. METHODS: The medical records of the clients who have taken health examinations for the first time from March 1995 to February 2000 at a health examination center of a university hospital in Seoul were reviewed. The category and number of judged diagnosis, sociodemographic factors are compared and analyzed. RESULTS: The selected medical records accounted to 22,393. The study subjects consist of 11,544(51.6%) male. Mean age is 52.0+/-10.5 years(range 16~90). 65 years or more old aged people of them are 2,612(11.7%), the number of judged diagnosis per one old person is 4.84+/-2.22(range 0~9) and young people took less diagnosis is 35.7%, functional diagnosis is 7.9%. The common diagnoses are liver disease(7.07%), decreased physical strength(6.68%), hyperlipidemin(6.53%),obesity(5.90%), osteoporosis or postmenopausal syndrome(4.72%), need for immunization against viral hepatitis(4.69%), hypertension(4.20%) functional gastrointestinal disease(3.93%). The number of total diagnosis and organic diagnosis is larger in older age, no exercise, female,smoker, no-spouse, lower education(p<0.05). The number of other diagnosis is larger in no exercise, smoker, female, younger age(p<0.05). CONCLUSION: According to health examination, total diagnosis and organic diagnosis are more in old aged group than in young. Functioinal diagnosis and other diagnosis is less in old aged group than in young.
Diagnosis*
;
Early Diagnosis
;
Female
;
Health Promotion
;
Humans
;
Immunization
;
Liver
;
Male
;
Medical Records
;
Osteoporosis
;
Risk Factors
;
Seoul
3.The surface hardness of resin cement by thickness of porcelain laminate.
Seok Koo KANG ; Jin Keun DONG ; Tai Ho JIN
The Journal of Korean Academy of Prosthodontics 1993;31(4):506-514
No abstract available.
Dental Porcelain*
;
Hardness*
;
Resin Cements*
4.A Comparative Observation on Success Rates of Stone Dislodgers.
Young Tai KANG ; Tae Hyung WOO
Korean Journal of Urology 1985;26(6):673-676
A comparative observation was done on 139 patients of the lower ureteral stone, those were applied cystoscopic manipulation with 3 different types of stone dislodger at the Department of Urology, Seoul Adventist Hospital, during the periods from Jan. 1982 to June 1985. During that periods, we applied end-loop catheter in 48 patients, blunt-tip Dormia basket in 38 patients. The results were as follows; 1. The success rate of passage of dislodger beyond the stone was the highest in filiform-tip Dormia basket (97.4%) and loop catheter was the lowest (8l.3%). 2. The success rate of the primary stone extraction with filiform-tip Dormia basket was the highest (86.8%). 3. Indwelling of the dislodger in the ureter loop catheter was the most successful method among them(62.5%). 4. Of the cases of passage beyond the stone, the success rates of the stone extraction were very high and similar in their results, as in 92.3% with loop catheter, in 90.9% with blunt-tip Dormia basket, in 91.9% with filiform-tip Dormia basket. 5. The overall success rate of stone extraction was 75.0% in loop catheter, 75.5% in blunt-tip Dormia basket 89.5% in filiform-tip Dormia basket.
Catheters
;
Humans
;
Seoul
;
Ureter
;
Urolithiasis
;
Urology
5.A Case of Proliferating Trichilemmal Tumor.
Soo Il CHUN ; Hyung Joo KIM ; Won Hyoung KANG ; Tai Seung KIM
Korean Journal of Dermatology 1985;23(4):539-542
Proliferating trichilernmal tumor is a rare benign solitary tumor that may be histopathologically misinterpreted as squarnous cell carcinoma. It affects frequently the scalp of elderly women. We present herein a case of proliferating trichilemmal tumor in an 87-year-old male who had had a slowly growing tumor on the scalp for 30 years.
Aged
;
Aged, 80 and over
;
Female
;
Humans
;
Male
;
Scalp
6.A Clinico-Epidemilological Study of 55 Cases of Chidhood Idiopathic Thrombocytopenic Purpura.
Won Ho KANG ; Myung Hee KOOK ; Yong Sang YOO ; Jae Suk MA ; Tai Ju HWANG
Journal of the Korean Pediatric Society 1987;30(11):1207-1212
No abstract available.
Purpura, Thrombocytopenic, Idiopathic*
7.Detection of human immunodeficiency virus-1 and -2 DNA in seropositive Koreans by two-step polymerase chain reaction and hybridization with digoxigenin-probes.
Tai Gyu KIM ; Hoon HAN ; Gum Ryong KIM ; Chun KANG ; Yung Oh SHIN
Journal of the Korean Society of Virology 1992;22(1):81-90
No abstract available.
DNA*
;
Humans*
;
Polymerase Chain Reaction*
8.Experimental Study for Comparison of the Ablation Effects of Extracted Bovid Liver by Percutaneous Procedures with Ethanol, Microwave, and Radiofrequency.
Bong Joo KANG ; Seong Tai HAHN
Journal of the Korean Radiological Society 2004;51(6):599-607
PURPOSE: The purpose of this study was to evaluate the differences in the ablation effects of percutaneous ethanol injection therapy (PEIT), percutaneous microwave coagulation therapy (PMCT), and radiofrequency (RF) ablation therapy in extracted bovid livers, and to assess the appropriate therapeutic method for treating hepatic tumors according to their shape, size and location. MATERIALS AND METHODS: PEIT, PMCT and RF ablation were performed at 1 cm and 5 cm depth in bovid livers. PEIT was performed with 1, 2, 3 and 4 ml of ethanol, PMCT with 60 watt for a 30 th, 60 th and 120 th of a second, and RF ablation for 6, 8, 10, 12 and 14 minutes. Ultrasonography was used for the detection of the tissue necrosis that followed the different therapeutic modalities. RESULTS: For PEIT, the extent of the necrosis was smaller than that of the other modalities. For PMCT, the necrosis was elliptical and longer in length. For RF, the necrosis was oval and larger in size. At 1 cm depth for PMCT and RF ablation, the liver capsule was injured. CONCLUSION:We concluded that these different findings in tissue necrosis would aid in selecting the appropriate therapeutic method for hepatic tumors according to the tumors' shape, size and location.
Ethanol*
;
Liver*
;
Microwaves*
;
Necrosis
;
Ultrasonography
9.Morphometric Study on the Sigmoid Sinus of the Korean Adults.
Hye Yeon LEE ; In Hyuk CHUNG ; Tai Sun SHIN ; Ho Suck KANG ; Byung Pil CHO
Korean Journal of Physical Anthropology 1989;2(1):25-31
The variations of the sigmoid sinus were studied in 50 Korean adults (average age 67). The classification of the shape and a measurement of the diameters of the sinus were done and the morpological. 1. The shape was classified into 4 types, and the round type was the most common in both sides. S shaped type was below 10% in both sides. 2. The breadth was regular in 54% of the right and in 70% of the left sinuses. According to the breadth change, the shape was classified into 4 shapes. 3. The average diameter was 8.6mm on the right side and 7.2mm on the left side. 4. Symmetry was present in 16% of all. 5. The right transverse sinus was absent in 1 case (2%) and the superior petrosal sinus did not open into the sigmoid sinus in 2 cases (4%). 6. Petrosqamous sinus was observed in 16%.
Adult*
;
Classification
;
Colon, Sigmoid*
;
Humans
10.High-contrast spectroscopic photoacoustic characterization of thermal tissue ablation in the visible spectrum
Hyunjae SONG ; Tai-Kyong SONG ; Jeeun KANG
Ultrasonography 2023;42(2):249-258
Purpose:
High-contrast tissue characterization of thermal ablation has been desired to evaluate therapeutic outcomes accurately. This paper presents a photoacoustic (PA) characterization of thermal tissue ablation in the visible spectrum, in which higher light absorbance can produce spectral contrast starker than in the near-infrared range.
Methods:
Ex vivo experiments were performed to measure visible PA spectra (480-700 nm) from fresh porcine liver tissues that received a thermal dose in a range of cumulative equivalent minutes at 43°C (CEM43). The local hemoglobin lobe area between 510-600 nm and wholespectral area under the curve were evaluated to represent the transition of hemoglobin into methemoglobin (MetHb) in the target tissue.
Results:
The thermal process below an estimated therapeutic CEM43 threshold (80-340 minutes) presented a progressive elevation of the PA spectrum and an eventual loss of local hemoglobin peaks in the visible spectrum, closer to the MetHb spectrum. Interestingly, an excessive CEM43 produced a substantial drop in the PA spectrum. In the spectral analysis, the visible spectrum yielded 13.9-34.1 times higher PA sensitivity and 1.42 times higher contrast change than at a near-infrared wavelength.
Conclusion
This novel method of PA tissue characterization in the visible spectrum could be a potential modality to evaluate various thermal therapeutic modalities at high-contrast resolution.