1.3-Dimensional Imaging.
Journal of the Korean Medical Association 1998;41(2):178-187
No abstract available.
2.Ultrasound guided reduction of childhood intussusception
Journal of the Korean Radiological Society 1986;22(5):788-793
Following on from diagnosis using ultrasound, hydrostatic reduction using saline enema under ultrasoundguidance was tried in 20 cases of childhood intussusception. The conclusions were as follows: 1. Success rates ofsaline enema under ultrasound guidance during a frist-8 month period(P1) and a second 10 month period(P2) were55.6%(5/9) and 54.5%(6/11) respectively. Average succes rate was 55%(11/20). 2. During the periods of P1 and P2,no case was reduced by barium enema in 6 cases of failed reduction with saline enema. 3. During the period of P2, 5 cases of successful redution with saline enema were confirmed by clinical follow-up without barium enema. 4.During the periods of P1 and P2, 9 cases of failed reduction with saline enema were operated, resulting in 6 casesof segmental resection and 3 cases of manual reduction. 5. The obvious advantages of this method are: 1. Noradiation hazard. 2. No fear of barium peritonitis. 3. Detection of leading point. 6. With above results, thismethod could completely replace barium enema. And ultrasonography should be the initial study in the evaluation ofintussusception in children and then if necessary, saline enema under ultrasound guidance should be done.
Barium
;
Child
;
Diagnosis
;
Enema
;
Follow-Up Studies
;
Humans
;
Intussusception
;
Methods
;
Peritonitis
;
Ultrasonography
3.Computed tomography of cystic tumors of the mediastinum
Chong Hyun YOON ; Jung Gi IM ; Man Chung HAN
Journal of the Korean Radiological Society 1983;19(4):703-708
Authors retrospectively analyzed the CT findings of cystic tumors of the mediastinum in surgically confirmed13 cases at Seoul National University Hospital during the recent 3 years from August 1980 to August 1983. Theresults are as follows: 1. Among 13 cases, bronchogenic cyst and cystic teratoma were 4 cases respectively,pericardial cyst were 2 cases, and thymic cyst and cystic hygroma was 1 case respectively. 2. CT No. of 4bronchogenic cysts was in the range of 12-112 HU, 3 cases among them had thick-walled capsules. CT No. of 4 cysticteratomas was in the range of
Bronchogenic Cyst
;
Capsules
;
Diagnosis, Differential
;
Lymphangioma, Cystic
;
Mediastinal Cyst
;
Mediastinum
;
Retrospective Studies
;
Seoul
;
Teratoma
4.Horseshoe Adrenal Gland in a Newborn with Right Isomerism.
Dong Hyun YANG ; Hyun Woo GOO ; Chong Hyun YOON
Journal of the Korean Radiological Society 2003;49(1):63-65
Horseshoe adrenal gland is a rare congenital abnormality associated with multiple congenital anomalies that may involve the cardiovascular, central nervous, and genitourinary systems. In this report, we describe the sonographic findings of horseshoe adrenal gland in a newborn with right isomerism a frequently associated cardiovascular anomaly.
Adrenal Glands*
;
Congenital Abnormalities
;
Humans
;
Infant, Newborn*
;
Isomerism*
;
Ultrasonography
;
Urogenital System
5.Yellow Nails Induced by Bucillamine in a Patient with Rheumatoid Arthritis.
Hyun Sook KIM ; Ji Hyeon JU ; Chong Hyeon YOON ; Ho Youn KIM ; Sung Hwan PARK
The Journal of the Korean Rheumatism Association 2005;12(3):247-248
No abstract available.
Arthritis, Rheumatoid*
;
Humans
6.Molecular Mechanism of TNF-alpha and MMP-9 Production in Response to HIV-1 Core Antigen p24 in Human Monocytie THP-1 Cells.
Soon Ah SHIN ; Yoon Jung BAE ; Hyun Joo LEE ; Hae Kyung PARK ; Young Hae CHONG
Journal of Bacteriology and Virology 2001;31(4):369-377
No abstract available.
HIV-1*
;
Humans*
;
Tumor Necrosis Factor-alpha*
7.Radiologic Evaluation About Urinary Tract Infection In Children.
Soon Wha KIM ; Byung Rai CHO ; Don Hee AHN ; Keun Chan SOHN ; Chong Hyun YOON
Journal of the Korean Pediatric Society 1989;32(6):797-803
No abstract available.
Child*
;
Humans
;
Urinary Tract Infections*
;
Urinary Tract*
8.A Case of Hemorrhagic Fever with Renal Syndrome by Seoul Virus Confirmed by Reverse Transcription-Polymerase Chain Reaction-Restriction Fragment Length Polymorphism.
Sue SHIN ; Jong Hyun YOON ; Eui Chong KIM
The Korean Journal of Laboratory Medicine 2005;25(4):262-266
Members of the genus Hantavirus are the etiologic agents of hemorrhagic fever with renal syndrome (HFRS), the diagnosis of which is somewhat difficult because several diseases share similar early clinical presentations such as fever and petechia. In Korea, Hantaan virus and Seoul virus are the causative organisms of HFRS, and the infection caused by Seoul virus is milder than that caused by Hantaan virus. We report a 44-year-old woman, who visited our hospital due to general weakness, fever, myalgia, facial edema and diarrhea. She was diagnosed with HFRS caused by Seoul virus. The antibody against Hantaan virus was positive by an indirect immunofluorescent test and the discrimination between Hantaan and Seoul viruses was done by RT-PCR-RFLP (reverse transcriptionpolymerase chain reaction-restriction fragment length polymorphism) against viral S segment.
Adult
;
Diagnosis
;
Diarrhea
;
Discrimination (Psychology)
;
Edema
;
Female
;
Fever
;
Hantaan virus
;
Hantavirus
;
Hemorrhagic Fever with Renal Syndrome*
;
Humans
;
Korea
;
Myalgia
;
Seoul virus*
9.Significanse of Renal Ultrasonography and MAG3 (Technetium-99m-Mercaptoacetyltriglycerine) Scan in Hydronephrosis during Infancy.
So Young LEE ; Kun Suk KIM ; Dae Hyuk MOON ; Chong Hyun YOON ; Young Seo PARK
Korean Journal of Nephrology 1998;17(4):574-582
A prospective study had been performed in infants with hydronephrosis due to ureteropelvic junction stenosis to determine adequate management plan. Forty infants (47 renal units) were selected for the study during the period from January 1995 to July 1997 in the Department of Pediatrics, Asan Medical Center. They were diagnosed prenatally or early postnatally (<3 months of age) on the basis of renal ultrasonography and techotium-99m-mercap- toacetyltriglycerine (MAG3) scan. The antero-poste- rior pelvic diameter (APPD) was measured from serial renal ultrasonography and relative renal function and clearance half time (T1/2) were calculated from serial MAG3 scan. Those who had accompanying other urogenital anomalies or vesicoureteral reflux were excluded in this study. Follow-up tests (ultrasonography and MAG3 scan) and surgical corrections, if necessary, were performed according to the predetermined algorithrn. The male to female ratio was 3: 1. Hydronephrosis was involved the left side in 24 renal units, the right side in 9 renal units, and the bilateral sides in 14 renal units. All the hydronephrotic renal units were divided into 2 groups; Group A (19 renal units) those had taken surgical correction, and group B (28 renal units) those revealed spontaneous improvement without surgical correction. The mean follow-up duration was 7.2+/-6.3 months in group A and 14.1+/-12.6 months in group B. The mean APPD in the first postnatal renal ultrasonography was 19.4+6.8 mm in group A and 10.0+/-3.0mm in group B and this was statistically significant (P<0.01). The rela- tive renal function of group A in the first MAG3 scan was under 35% in 7 renal units and over 35M in 12 renal units. In group B, the relative renal function was over 35% in the all 28 renal units. Tl/2 in the first MAG3 scan was longer than 20 minutes in the all 19 renal units in group A. In group B, Tl/2 was shorter than 10 minutes in 15 renal units, between 10 minutes and 20 minutes in 6 renal units, and longer than 20 rninutes in 7 renal units. The mean APPD of the 7 renal units in group B of which Tl/2 was longer than 20 minutes was 12.62.6mm and that of group A was 19.4+/-6.8mrn and this was statistically significant (P<0.01). In conclusion, the renal ultrasonography and MAG3 scan can be used effectively to determine the degree of the stenosis of the ureteropelvic junction in hydronephosis during infancy. When the babies are diagnosed with hydronephrosis due to ureteropelvic junction stenosis in the early infantile period, serial renal ultrasonography and MAG3 scan play an important role in the decision of the management.
Chungcheongnam-do
;
Constriction, Pathologic
;
Female
;
Follow-Up Studies
;
Humans
;
Hydronephrosis*
;
Infant
;
Male
;
Pediatrics
;
Ultrasonography*
;
Vesico-Ureteral Reflux
10.Extensor Digitorum Tenosynovitis That Improved by Ultrasonographic guided Aspiration and Steroid Injection.
Hyun Sook KIM ; Ji Hyeon JU ; Chong Hyeon YOON ; Sung Hwan PARK ; Ho Youn KIM
The Journal of the Korean Rheumatism Association 2006;13(4):353-354
No abstract available.
Tenosynovitis*