1.Cysticercosis of Breast: A Case Report.
Ki Keun OH ; Tae Joo JEON ; Woo Hee JEONG
Journal of the Korean Radiological Society 1995;32(5):835-840
Authors reviewed mammographic ultrasonographic and MRI findings a patient with breast cysticerocosis, which was operated and pathologically proved. Mammography showed a 1 cm sized round radioopaque lesion with curvilinear calification, which was located near the pectoralis major muscle. Ultrasonograiphic findings showed heterogenous hypoechoic cystic lesion with internal hyperechoic nodule and posterior acoustic shadowing. T2Wl and proton density MR image showed low signal intensity with cresentic high signal intensity portion. 2D-FLASH dynamic MRI showed intermediate signal intensity and peripheral signal void area, which was not enhanced with Gd-DPTA. The possibility of cysticercosis can be considered be considered when a cytic lesion is discovered near the pectoralis muscle in a patient living in an endemic area.
Acoustics
;
Breast*
;
Cysticercosis*
;
Humans
;
Magnetic Resonance Imaging
;
Mammography
;
Pectoralis Muscles
;
Protons
;
Shadowing (Histology)
2.Simple Hygoroma and Shunt Dependent Hydrocephalus after Aneurysmal Clippings.
Jeong Hyun HWANG ; Tae Hyung JEON ; In Suk HAMM
Journal of Korean Neurosurgical Society 2000;29(2):231-239
No abstract available.
Aneurysm*
;
Hydrocephalus*
3.Magnetization Transfer Ratio of Brain Tissue: Normal Value and Effect of TR/TE.
Tae Sub CHUNG ; Eun Kee JEONG ; Tae Joo JEON ; Duk Jae KIM ; Hyuk Woo KWON
Journal of the Korean Radiological Society 1995;32(4):535-540
PURPOSE: Magnetization transfer imaging(MTI) is a new imaging contrast technique. Our MT pulse sequence is designed as fixed time interval between echo and MT pulse. This study was peformed to evaluate the influence of variations in TR/TE on MTR in T1 weighted image of normal brain tissue on this kind of MT pulse sequence. MATERIALS AND METHODS: Seven healthy volunteers in twenties of age as the objectives, MRI was taken under various TR/TE(TR/TE ;700/14, 650/14, 750/14, 700/20 and 1500/20 msec). MTR was calculated from signal intensities measured at the same point in both pre and post MT images and statisticslly analyzed. The MR imager used in this study was 1.0T Magnetom 42SP(Siemens, Erlangen, Germany) and the parameters of additional MT pulse sequence were offset 1000Hz and bandwidth 250Hz, and posteriorly located to echo with 7.7 msec fixed interval. Offset of this MT pulse was variable. RESULT: In white matter of brain tissue from a normal person, MTR was 34-39%(average 37%) for TR and TE of 700/14 in T1WI and 33-36%(average 35%) for TR/TE of 650/14, and 34-38%(average 35%) for TR/TE of 750/14 which showed no statistical difference. However, in case of 1500/20 of TR/TE, MTR was 26-28%(average 26%) which is statistically significant. With TR/TE of 700/14 as the standrd value, the MTR of gray and white matter were 37% and 29% respectively, showing a definite difference of statistical means. Signal from CSF in ventricles is rarely influenced by MT pulse. CONCLUSION: Conclusively, a subtle variation in TR/TE in T1WI has little influence on MTR but wide range of variation in TR/TE as in proton density image induces significant difference in MTR on this kind of MT pulse sequence. Therefore, the exchangeable usage of MTR data would be possible in narrow range of TR/TE change but difficult in wide range of variation.
Brain*
;
Healthy Volunteers
;
Humans
;
Magnetic Resonance Imaging
;
Protons
;
Reference Values*
4.PCR Prevalence and Risk Factors of Hepatitis C Virus Infection in the Adult Population of Ulsan.
Journal of the Korean Academy of Family Medicine 1998;19(4):364-373
BACKGROUND: Liver disease is an important public health problem in Korea. The aim of this study was to estimate the prevalence of hepatitis C virus antibody(anti-HCV) in the adult population of Ulsan and to identify risk factors for HCV infection by case centre study. METHODS: The anti-HCV test was performed in 10,140 adults older than 20 years of age who underwent a general medical checkup in Ulsan University Hospital, Health Promotior Center from January 1997 to November 1997. 33 cases and 99 controls matched for age and sex with a 1: 3 ratio of cases to controls were enrolled. The cases were defined as positive anti-HCV and positive HCV-RNA whereas the controls were negative anti-HCV negative HBsAg and ALT < OR = 40. Exposure data were obtained by self-administered questionnaire. RESULTS: The overall prevalence of anti-HCV was 1.3%(95% CI : 1.1-1.5) and the positive predictive value of 3rd generation anti-HCV ELISA was 34%. Thus, true prevalence of HCV infection was 0.45%. Only history of transfusion was significantly associated with anti-HCV infection. CONCLUSIONS: The overall prevalence of anti-HCV was 1.3% and true prevalence of HCV infection was 0.45% in the adult population of Ulsan. Transfusion was the major route of transmission of HCV but the risk will likely reduce.
Adult*
;
Enzyme-Linked Immunosorbent Assay
;
Hepacivirus*
;
Hepatitis B Surface Antigens
;
Hepatitis C*
;
Hepatitis*
;
Humans
;
Korea
;
Liver Diseases
;
Polymerase Chain Reaction*
;
Prevalence*
;
Public Health
;
Risk Factors*
;
Ulsan*
;
Surveys and Questionnaires
5.Chronic Eosinophilic Pneumonia: A Case Report.
Hae Jeong JEON ; Jeong Hee PARK ; Jong Nam LIM ; Tae Haeng HEO ; Hyun Jun SHIN
Journal of the Korean Radiological Society 1995;32(5):733-735
Chronic eosinophilic pneumonia is a rare diasease characterized by chronic infiltration of the lung with ~eosinophils, usually associated with peripheral eosinophilia. In 65% of cases, the chest rad Ogroaph shows typiical nonsegmental air-space consolidation confined to the outer third of the lung and in 25)/0 of case "photographic negative of pulmonary edema". Typical lung manifestations with 'peripheral eosinophiliSa' tahrcharacteristic of chronic eosinophilic pneumonia. In the remaining cases, radiographic findings are nonspecific and require lung biopsy for confirmation. We repot a case of chronic eosinophilic pneumonia in which chest radiograph and CT scans revealed bilateral patchy or diffuse opacity with nodules scattered throughout the lungs.
Biopsy
;
Eosinophilia
;
Eosinophils*
;
Lung
;
Pulmonary Eosinophilia*
;
Radiography, Thoracic
;
Thorax
;
Tomography, X-Ray Computed
6.Prognosis of extraventricular drainage in childhood tuberculous meningits.
Hye Jeong JEON ; Ki Joong KIM ; Tae Sung KO ; Dong Wook KIM ; Yong Seung HWANG
Journal of the Korean Child Neurology Society 1993;1(1):72-82
No abstract available.
Drainage*
;
Prognosis*
7.A Rupture of Distal Anterior Cerebral Artery Aneurysm Invaded by Anaplastic Oligodendroglioma.
Tae Hyung JEON ; Jeong Hyun HWANG ; In Suk HAMM
Journal of Korean Neurosurgical Society 2004;35(5):520-522
The authors report a very unusual case of ruptured aneurysm by direct vessel invasion of anaplastic oligodendroglioma (WHO grade III) confirmed by histopathological examinations. As local invasion is the hallmark of malignant gliomas, malignant glial tumors invade neighboring structure and often cause microscopic endothelial proliferation, telangiectasias in small arteriols, but direct arterial invasion by glioma is very rare. Possible mechanisms of intracranial aneurysm development by glioma are thought to be related to the close proximity to the tumor, perivascular basement membrane breakage due to high tumor pressure and increased regional blood flow through the feeding artery of tumor. The aneurysm and tumor were treated in a single operation simultaneously.
Aneurysm
;
Aneurysm, Ruptured
;
Anterior Cerebral Artery*
;
Arteries
;
Basement Membrane
;
Glioma
;
Intracranial Aneurysm*
;
Oligodendroglioma*
;
Regional Blood Flow
;
Rupture*
;
Telangiectasis
8.Comparison of Vildagliptin-Metformin and Glimepiride-Metformin Treatments in Type 2 Diabetic Patients.
Diabetes & Metabolism Journal 2011;35(5):529-535
BACKGROUND: The present study investigated the efficacy and safety of vildagliptin-metformin treatment compared to those of glimepiride-metformin treatment for type 2 diabetes. METHODS: In a randomized, open-label, comparative study, 106 patients with type 2 diabetes were enrolled. The primary endpoint was a reduction in HbA1c from baseline and secondary endpoints included fasting plasma glucose (FPG) or 2-hour postprandial glucose (2h-PPG) reduction from baseline, as well as HbA1c responder rate and HbA1c reduction according to baseline HbA1c category. RESULTS: Comparable HbA1c reduction was observed with a mean+/-standard deviation change from baseline to the 32-week endpoint of -0.94+/-1.15% in the vildagliptin group and -1.00+/-1.32% in the glimepiride group. A similar reduction in 2h-PPG (vildagliptin group 3.53+/-4.11 mmol/L vs. the glimepiride group 3.72+/-4.17 mmol/L) was demonstrated, and the decrements in FPG (vildagliptin group 1.54+/-2.41 mmol/L vs. glimepiride group 2.16+/-2.51 mmol/L) were not different between groups. The proportion of patients who achieved an HbA1c less than 7% at week 32 was 50.1% in the vildagliptin group and 56.0% in the glimepiride group. An average body weight gain of 2.53+/-1.21 kg in the glimepiride group was observed in contrast with the 0.23+/-0.69 kg weight gain noted in the vildagliptin group. A 10-fold lower incidence of hypoglycemia was demonstrated in the vildagliptin group, in addition to an absence of severe hypoglycemia. CONCLUSION: Vildagliptin-metformin treatment provided blood glucose control efficacy comparable to that of glimepiride-metformin treatment and resulted in better adverse event profiles with lower risks of hypoglycemia and weight gain.
Adamantane
;
Blood Glucose
;
Body Weight
;
Diabetes Mellitus, Type 2
;
Fasting
;
Glucose
;
Humans
;
Hypoglycemia
;
Incidence
;
Metformin
;
Nitriles
;
Plasma
;
Pyrrolidines
;
Sulfonylurea Compounds
;
Weight Gain
9.Studies in Anemia of Infancy and Children During Hospitalization.
Tae Kyu HAME ; Jeong Sam JEON ; Kyu Chul CHOI ; Yong Mook CHOI ; Chang Il AHN
Journal of the Korean Pediatric Society 1988;31(10):1338-1345
No abstract available.
Anemia*
;
Child*
;
Hospitalization*
;
Humans
10.The effect of audiovisual instruction that influences hormone replacement therapy uptake and changes of lifestyle behaviors related to osteoporosis in perimenopausal women.
Tae Heum JEONG ; Tae Hee JEON ; Mun Chan KIM ; Yeong Il KIM ; Dae Joon JEON ; Seoung Oh YANG ; Su Youn HAM ; Byung Kyun KO ; Sung Ryul KIM
Journal of the Korean Academy of Family Medicine 2000;21(11):1406-1414
No Abstract Available.
Female
;
Hormone Replacement Therapy*
;
Humans
;
Life Style*
;
Osteoporosis*