1.Too many ducts sign: a characteristic cholangiographic finding of clonorchiasis?.
Ki Soon PARK ; Jae Hoon LIM ; Kwan Sup LEE ; Pil Mun YU
Journal of the Korean Radiological Society 1992;28(5):744-748
Clonorchiasis procucts diffuse dilatation of the small and medium sized intrahepatic bile ducts and its cholangiogram shows visualization of many bile ducts, especially, tertiary, quaternary, and more peripheral tributaries up to the 6th tributaries. In an attempt to clarify this cholangiographic sign quantitively, we counted the visualized smaller bile ducts in clonorchiasis and compared the number of visualized ducts in normal cholangiogram, recurrent pyogenic chlangitis and carcinoma of the extrahepatic ducts. In clonorchiasis the number of visualized smaller bile ducts was considerably geater than in normal subjects and recurrent pyogenic cholangitis, but there was no singnificant statistical differences in the number of visualized bile duct tributaries between clonorchiasis and carcinoma of the bile ducts. Thus it is considered that too many ducts sign is not a unique cholangiographic finding of clonorchiasis, but we believe that in the presence of this sign with other we l known cholangiographic findings, diagnosis of clonorchiasis is very easy.
Bile Ducts
;
Bile Ducts, Intrahepatic
;
Cholangitis
;
Clonorchiasis*
;
Diagnosis
;
Dilatation
2.Relationship of Insulin like Growth Factor I with Pharmacologically Stimulated Growth Hormone Secretion in Growth Hormone Deficient Children.
Phil Soo OH ; Ki Joong KIM ; Young Iee YU ; Jeh Hoon SHIN
Journal of the Korean Pediatric Society 1995;38(10):1394-1403
No abstract available.
Child*
;
Growth Hormone*
;
Humans
;
Insulin*
;
Insulin-Like Growth Factor I*
3.Analysis of Risk Factors in the Patients with Acute Renal Failure.
Ki Dong YU ; Young Gon KIM ; Jong Hoon CHUNG
Korean Journal of Nephrology 1999;18(4):560-568
BACKGROUND: Acute renal failure(ARF) is characterized by rapid decline in glomerular filtration rate and retension of nitrogenous waste products. This syndrome occurs in approximately 5 percent all hospital admissions and up to 30 percent of admissions to intensive care units. ARF is diagnosed when screening of hospital patients reveals a recent increase in serum BUN(blood urea nitrogen) and creatinine. The mortality rate for ARF is approximate 40-60% and has changed little in past three decades. This lack of improvement in outcome, despite significant advances in medicine. The reasons of high mortality rate is not certain. This study intend to identify prognostic risk factors influencing survivals. METHODS: We retrospectively analyzed 60 patients with ARF during 2 years period from Oct. 1996 to Oct. 1998 at chosun university hospital. Multiple factors which may influence mortality were evaluated. RESULTS: 1)Of the 60 patients, 34 were male and 26 were female. The mean age was 55.8+/-15.9 years. 2)The cause of ARF is Drug, toxin, dehydration, infection, trauma, surgery, urinary tract obstruction, HFRS, rhabdomyolysis and bleeding. 3)Underline disease is observed in 52 case. DM, Hypertension, Malignancy, Pulmonary disease, Liver disease, Renal disease 4)The mortality rate is 31.7%. The major cause of deaths is DIC, infection and hepatic failure. 5)Based on the unpaired t-test, chi-squre analysis, albumin, total bilirubin, hemoglobin, thrombocytopenia, APACHE II score, serum sodium, urine creatinine, number of multiple organ failure, cause of acute renal failure, pH, vital sign on admission, sepsis, DIC, oilguria, and hemodialysis were significant factors between survivors and nonsurvivors(p< 0.05). 6)APACHE II score on admission is good prognostic factor for patients with acute renal failure (p<0.001). CONCLUSION: This results suggest that the evaluation of patients symptom, sign, laboratory data, APACHE II score is important for patients with acute renal failure. the discriminant score by multiple analysis and APACHE II score could relatively predict the mortality of ARF patients. however further evaluation and clinical apply of prognostic factors is required to confirm these results.
Acute Kidney Injury*
;
APACHE
;
Bilirubin
;
Cause of Death
;
Creatinine
;
Dacarbazine
;
Dehydration
;
Female
;
Glomerular Filtration Rate
;
Hemorrhage
;
Hemorrhagic Fever with Renal Syndrome
;
Humans
;
Hydrogen-Ion Concentration
;
Hypertension
;
Intensive Care Units
;
Liver Diseases
;
Liver Failure
;
Lung Diseases
;
Male
;
Mass Screening
;
Mortality
;
Multiple Organ Failure
;
Nitrogen
;
Renal Dialysis
;
Retrospective Studies
;
Rhabdomyolysis
;
Risk Factors*
;
Sepsis
;
Sodium
;
Survivors
;
Thrombocytopenia
;
Urea
;
Urinary Tract
;
Vital Signs
;
Waste Products
4.Diagnostic Performance of Diffusion-weighted Imaging for Hepatic Neuroendocrine Tumor: Comparison with Combined Diffusion-weighted Imaging and Contrast-enhanced Magnetic Resonance Imaging.
Suk Ki JANG ; Jung Hoon KIM ; Mi Hye YU ; Joon Koo HAN
Journal of Liver Cancer 2016;16(2):92-100
BACKGROUND/AIMS: To investigate the diagnostic performance of diffusion-weighted imaging (DWI) for hepatic neuroendocrine tumors (NET) compared with combined DWI and contrast-enhanced magnetic resonance imaging (MRI). METHODS: Fifteen patients with hepatic NET (n=128) underwent enhanced MRI and DWI with multiple-b values. We analyzed three different sets: Precontrast set; DWI set (added DWI); combined set (added enhanced image). Two reviewers rated possibility of NET using a 5-point scale for each image set. Their diagnostic performance was compared using Jackknife alternative free-response ROC (JAFROC). RESULTS: Diagnostic performance was better on the combined set (figure of merit [FOM]=0.852, 0.761) than the precontrast set (FOM=0.427, 0.572, P〈0.05) and the DWI set (FOM=0.682, 0.620, P〈0.05). However, DWI improved performance compared with precontrast set without statistical difference. In small NETs (〈1 cm), all sets showed low sensitivity (10.7-65.9%) with high specificity (95.4-100%). Interobserver agreement was moderate in all image sets (k=0.521 to 0.589). CONCLUSIONS: Combined DWI and enhanced MRI were more useful for detecting NET. Although statistically insignficant, there was a trend in improved diagnostic performance with DWI.
Humans
;
Magnetic Resonance Imaging*
;
Neuroendocrine Tumors*
;
Sensitivity and Specificity
5.p53 Mutation and p53 Protein Expression in Gastric Cancer Tissues.
Ki Beom KU ; Seong Hoon PARK ; Ho Young CHUNG ; Wansik YU ; Myung Hoon LEE
Journal of the Korean Surgical Society 2007;72(4):283-289
PURPOSE: Variable changes occur in the progression from normal gastric epithelium to cancer, including many tumor, tumor suppressor and DNA repair genes, as well as growth factor and its receptors. The mutation and protein expression of the p53 gene may be useful prognostic factors, but their significance is still uncertain. METHODS: Specimens from 296 gastric cancer patients, treated by a curative gastrectomy, between March 1999 and April 2001, at Kyungpook National University Hospital, were used. The p53 gene mutation was assessed using a polymerase chain reaction-single strand conformation polymorphism (PCR-SSCP) analysis, and the overexpression of tumor p53 protein using immunohistochemistry. The correlation between the results and clinicopathological parameters were then analyzed. RESULTS: The mutation and protein overexpression of the p53 gene were shown in 61 (20.6%) and 124 (41.9%) tumors, respectively. Of the 61 cases with a p53 mutation, 43 (70.5%) showed overexpression of the p53 protein, and of the 235 without mutation of the p53 gene, 81 (34.5%) had no overexpression of the p53 protein, and also showed statistical significance (P< 0.001). The mutation and protein overexpression of the p53 gene showed no significant differences according to age, gender, stage, location and gross type, but of the 138 intestinal and 128 of the diffuse types, 33 (23.9%) and 18 (14.1%) cases, respectively, showed p53 mutation (P=0.027); whereas, of the 150 well differentiated and 142 poorly differentiated tumors, 75 (50%) and 18 (33.8%), respectively, showed overexpression of the p53 protein. Also, of the 138 intestinal and 128 diffuse types, 71 (51.4%) and 43 (33.6%) showed overexpression of the p53 protein. There were no significant differences in the 5 year survival according to the mutation and protein overexpression of the p53 gene. CONCLUSION: The mutation and protein overexpression of the p53 gene, as assessed by PCR-SSCP and immunohistochemistry, respectively, showed a statistically significant correlation, but had little value as prognostic factors following a curative gastrectomy.
DNA Repair
;
Epithelium
;
Gastrectomy
;
Genes, p53
;
Genes, vif
;
Gyeongsangbuk-do
;
Humans
;
Immunohistochemistry
;
Stomach Neoplasms*
6.p53 Gene Mutation in Gastric Cancer Tissue.
Ki Beom KU ; Seong Hoon PARK ; Ho Young CHEONG ; Wansik YU ; Myung Hoon LEE
Journal of the Korean Gastric Cancer Association 2006;6(4):214-220
PURPOSE: p53 is one of the most commonly mutated genes in human tumors. The aim of this study was to analyze p53 mutation in gastric cancer and its correlations with the clinicopathologic variables to clarify the usefulness of p53 mutation as a prognostic factor. MATERIALS AND METHODS: Specimens from 331 patients with gastric cancer who underwent a gastrectomy between March 1999 and April 2001 at the Kyungpook National University Hospital were used. p53 gene mutations were assessed by using a polymerase chain-reaction single-strand conformation polymorphism (PCR-SSCP) analysis. The correlations between p53 gene mutation and clinocopathologic parameters were analyzed. RESULTS: p53 mutations were found in 66 (19.9%) tumors. Among those 66 cases, mutations were seen in 23 tumors at exon 5, in 8 at exon 6, in 21 at exon 7, and in 17 at exon 8. Two mutations were shown in 3 tumors. Thirty-six (23.1%) of 156 intestinal-type tumors and 19 (13.1%) of 145 diffuse-type tumors showed p53 gene mutation (P=0.007). The frequency of p53 gene mutation didn't show any significant differences according to age, sex, stage, location, or gross type. Exon 5 mutations showed more frequently in intestinal-type tumors than in diffuse-type tumors (9.7% vs. 2.8%, P=0.024), and p53 mutation were more frequent in lymph nodes metastasis group than lymph nodes non-metastasis group with statistical significance (25.0% vs 15.6%, P=0.034). The five-year survival rate showed no statistically significant difference with p53 mutation (P=0.704). CONCLUSION: p53 mutations assessed by PCR-SSCP had little value as a prognostic factor after gastrectomy in patients with gastric cancer.
Exons
;
Gastrectomy
;
Genes, p53*
;
Gyeongsangbuk-do
;
Humans
;
Lymph Nodes
;
Neoplasm Metastasis
;
Stomach Neoplasms*
;
Survival Rate
7.Prevalence of Erectile Dysfunction and Utilization of Sexual Counseling in Community Family Medicine Clinics.
Yu Jang CHO ; Hwan Sik HWANG ; Hoon Ki PARK ; Jae Ghil JEONG
Korean Journal of Family Medicine 2009;30(8):617-625
BACKGROUND: Sexual dysfunction such as erectile dysfunction (ED) may be a hidden agenda, but, it should be dealt with by family physicians in primary care. We investigated the prevalence of ED and utilization of sexual consultation practice among community family physicians. METHODS: We analyzed the subjects who were males aged over 30 and married who visited 10 community family clinics around Seoul, Korea and completed questionnaires related to erectile function and utilization of sexual consultation service from May 9 to 28 2009. ED was designated if the 5-item version of international index of erectile dysfunction (IIEF-5) scores were less than 17. RESULTS: The average age of the responders was 45.6 years. The prevalence of ED was 43.3% and increased according to age, chronic disease, low educational history and low family income. Almost all of the mild ED patients answered that they needed sexual consultation. But, half of them had no plan to have a sexual consultation. Odds ratios (ORs) with 95% confidence intervals (CIs) for having a sexual consultation or not according to variables were calculated with logistic regression. More severe ED (OR = 0.875; 95% CI, 0.827 to 0.926), existence of chronic disease (OR = 1.828; 95% CI, 1.026 to 3.260), inferior education (OR = 0.395; 95% CI, 0.196 to 0.796), and lower income (OR = 0.326; 95% CI, 0.124 to 0.857) were the factors which influenced to have a sexual consultation with a family physician. CONCLUSION: The prevalence of ED in family clinic was over 40%, but the utilization of sexual consultations was under 50%. We need to develop intervention strategies for more sexual counseling practice according to educational history, family incomes and status of ED in community family medicine clinics.
Aged
;
Chronic Disease
;
Counseling
;
Erectile Dysfunction
;
Humans
;
Korea
;
Logistic Models
;
Male
;
Odds Ratio
;
Physicians, Family
;
Prevalence
;
Primary Health Care
;
Referral and Consultation
;
Sex Counseling
8.The Value of True FISP Sequence as a Fast T2-Weighted MR Imaging of Liver: Comparison with Breath-hold Turbo Spin Echo and HASTE Sequence.
Jai Keun KIM ; Jeong Sik YU ; Ki Whang KIM ; Mi Gyung JEONG ; Eun Kee JEONG ; Young Hoon RYU
Journal of the Korean Society of Magnetic Resonance in Medicine 1999;3(3):245-250
PURPOSE: To document the relative usefulness of true Fast-imaging steady-state precession(FISP) comparing to breath-hold turbo spin-echo(TSE), and half-Fourier single-shot turbo spin-echo(HASTE) as a fast T2-weighted sequence during hepatic MR imaging. MATERIALS AND METHODS: For 46 patients with 87 focal hepatic lesions(hepatocellular carcinoma, n=26; metastasis. n=5; cavernous hemangioma, n=37; cyst, n=19), we obtained MR imaging of the liver at 1.5T. True FISP, TSE with and without fat-suppresion(FS), and HASTE with and without FS images were obtained during one breath-hold. Images were compared on the basis of tumor detectability and lesion-to-liver contrast-to-noise ratio(CNR). Qualitative analysis of each imaging sequence was also performed in terms of hepatic contour, visibility of vascular landmarks and imaging artifacts. RESULTS: TSE-FS depicted more focal lesions(78/87, 90%) than other sequences(TSE, 75/87=86%;HASTE, 74/87=85%; HASTE-FS, 75/87=86%;true FISP,73/87=84%). However, there was no statistical significance between each sequence(p> .05). Using true FISP or HASTE, there was a statistically significant difference(p< .01) between the CNRs of solid tumors, crystal and hemangiomas. Additionally, true FISP sequence showed better hepatic contour, vascular landmarks and less artifacts comparing with TSE or HASTE regardless of FS(p< .001). CONCLUSION: True FISP sequence allows differentiation between solid tumors, hemangiomas and cystic lesions in terms of CNR, and provides better imaging quality than other fast T2-weighted MR sequences.
Artifacts
;
Hemangioma
;
Hemangioma, Cavernous
;
Humans
;
Liver*
;
Magnetic Resonance Imaging*
;
Neoplasm Metastasis
9.The Effect of Single Estrogen and Continuous Combined Estrogen + Progestin on Lipid Profile and Bone Mineral Density in Premenopausal Hysterectomised and Natural Menopausal Women.
Hee Ok KIM ; Min Young YOO ; Youn Jung KIM ; Ji Eun PARK ; Hoon Jin YANG ; Eun Hee YOO ; Sun Hee CHUN ; Chong Il KIM ; Han Ki YU
Korean Journal of Obstetrics and Gynecology 2000;43(10):1756-1762
No abstract available.
Bone Density*
;
Estrogens*
;
Female
;
Humans
10.Chemical Saturation Breath-hold Fast MR Imaging for Characterization of Regional Fatty Changes in Liver.
Dong Guk KIM ; Jeong Sik YU ; Ki Whang KIM ; Tae Hoon KIM ; Byung June JO ; Sei Jung OH ; Chang Soo AHN ; Ji Hyung KIM
Journal of the Korean Society of Magnetic Resonance in Medicine 1997;1(1):135-141
PURPOSE: To assess the usefulness of breath-hold fast MR imaging of liver with fat suppression (FS) by application of chemical saturation technique in the diagnosis of regional fatty changed suspected in sonography. MATERIALS AND METHODS: Thirteen patients who had focal lesions with diffuse, homogeneous signal changes after FS through chemical saturation technique without additional changes of imaging parameter during MR imaging of liver were selected. T1-weighed fast low-angle shot and T2-weighted turbo spin-echo sequences were obtained with or without FS during each single breath-holding session. Subjective changes of signal intensity between the pre-FS and the FS images were compared with the sonographic findings in each lesion. RESULTS: Seven lesions of decreased signal intensity after FS on T1 or T2-weighted images, including three lesions only at FS T1 images, were regarded as focal fat infiltration. All seven lesions had compatible sonographic findings as homogenously echogenic areas. Another six lesions of subjectively increased signal intensity including two lesions only at FS T2 images were regarded as focal fat sparing. All six lesions had sonographic findings as homogenous echo poor areas suggesting focal fat sparing. In cases regarded as fat infiltration, score changes were more prominent at FS T1 images than FS T2 images(p=0.0002). In cases regarded as fat sparing, score changes were more prominent at FS T2 images than FS T1 images(p=0.042). CONCLUSION: Breath-hold fast T1 and T2-weighted MR imaging with and without chemical saturation pre-pulse may be sufficient for characterization of regional fatty changes in the different ferential diagnosis of focal hepatic lesion found at sonography.
Diagnosis
;
Humans
;
Liver*
;
Magnetic Resonance Imaging*
;
Ultrasonography