1.CT findings of early acute cerebral infarction.
Tae Hoon KIM ; Woo Suk CHOI ; Kyung Nam RYU
Journal of the Korean Radiological Society 1992;28(6):844-850
The CT findings of the acute cerebral infarction are well known. However the CT findings of early stroke within 24 hours of the onset have not been sufficiently reported. The purpose of this study is to evaluate early acute cerebral infarction on CT within 24 hours after ictus. The early and accurate CT diagnosis could lead to the appropriate therapy and improved outcome of the patients. Authors retrospectively analyzed 16 patients with early acute cerebral infarction. Acute cerebral infarction was confirmed by follow-up CT in 11 patients, SPECT in 4 patients, and MRI in 1 patient. The CT findings of early acute cerebral infarction include effacement of cortical sulci or cistern (n=16, 100%), hyperattenuation of MCA (n=3), obscuration of lentiform nucleus (n=6), loss of insular ribbon (n=6) and subtle low density in hemisphere (n=5). The most frequent findings was effacement of cortical sulci in our study, and it was though to be the most important sign of early acute cerebral infarction.
Cerebral Infarction*
;
Corpus Striatum
;
Diagnosis
;
Follow-Up Studies
;
Humans
;
Magnetic Resonance Imaging
;
Retrospective Studies
;
Stroke
;
Tomography, Emission-Computed, Single-Photon
2.Resurfacing of the hand using free temporoparietal fascial flap.
Young Seob LEE ; Yang Woo KIM ; Byung Hoon RYU
Journal of the Korean Society of Plastic and Reconstructive Surgeons 1992;19(2):252-257
No abstract available.
Hand*
3.Clinical Result of Planned posterior Continuous Curvilinear Capsulorrhexis in Adult Cataract patients: 1 year follow-up.
Chang Hoon RYU ; Hong Bok KIM ; Seung Jeong LIM
Journal of the Korean Ophthalmological Society 2000;41(12):2547-2554
No Abstract Available.
Adult*
;
Capsulorhexis*
;
Cataract*
;
Follow-Up Studies*
;
Humans
4.Reconstruction of extensive scalp defect using free latissimus dorsi muscle flap.
Byung Hoon RYU ; Young Seob LEE ; Yang Woo KIM
Journal of the Korean Society of Plastic and Reconstructive Surgeons 1991;18(1):95-100
No abstract available.
Scalp*
;
Superficial Back Muscles*
5.The Effect of Recombinant Human Growth Hormone on Neutrophil Activity in Children.
Hun Taeg CHUNG ; Jong Duck KIM ; Hoon RYU ; Du Young CHOI
Korean Journal of Immunology 1997;19(4):629-638
We investigated the acute effect of recombinant human growth hormone (rhGH) on the activity of polymorphoneuclear leukocyte (PMN). We selected 6 patients of growth hormone deficient and 5 normal control children. In both groups, 0.15 IU/kg of rhGH was administered subcutaneously. The plasma growth hormone level were measured by radioimmunoassay on 0, 2, and 6 hours after administration of rhGH. To determined PMN activity, peripheral blood PMN were separated by discontinuous density-gradient centrifigation. Isolated PMN were stimulated hy fMLP and PMA and then respiratory burst activity of PMN was determined. The average growth hormone level of growth horrnone deficient and normal group were increased to the level of 41.6+/-23.7 and 96.3+/-46.5 ng/ml respectively, 2 hours after rhGH injection and decreased to the level of 18.5+/-10.6 and 42.2+/-5.5 ng/ml respectively, 6 hours after rhGH injection. Superoxide (O ) production by PMN which was stimulated by PMA was increased from 9.98+/-5.18 to 38.67+/-19.19 (x 10'cpm) after 6 hours of rhGH injection in control group children. It seemed that administration of the rhGH do not made a any effects acutely on PMN activity in growth hormone deficient group. But in a normal control children, extemal administration of rhGH acutely increased activity of PMN.
Child*
;
Growth Hormone
;
Human Growth Hormone*
;
Humans*
;
Leukocytes
;
Neutrophils*
;
Plasma
;
Radioimmunoassay
;
Respiratory Burst
;
Superoxides
6.Clinical charateristics of pregnancy-induced hypertensive mothers and their neonates.
Soo Jeong RYU ; Jin Sook KIM ; Kyong Hoon CHOI ; Myong Jin KIM ; Mi Na LEE
Journal of the Korean Pediatric Society 1991;34(7):929-933
No abstract available.
Humans
;
Infant, Newborn*
;
Mothers*
;
Thrombocytopenia
7.Angiographic analysis of avascular necrosis of a femoral head -selective angiography of medial femoral circumflex artery-.
Kyung Nam RYU ; Yup YOON ; Sun Wha LEE ; Jae Hoon LIM
Journal of the Korean Radiological Society 1991;27(4):547-551
No abstract available.
Angiography*
;
Head*
;
Necrosis*
8.Comparative study of radiologic-pathologic findings of experimental clonorchiasis in rabbits.
Kyung Nam RYU ; Jae Hoon LIM ; You Jung CHO ; Moon Ho YANG
Journal of the Korean Radiological Society 1993;29(1):1-8
Radiological investigation in patients with clonorchiasis is very important as this is the only method of evaluating the severity of clonorchiasis. In order to correlate the radiologic and pathologic findings of clonorchiasis, fourteen rabbits infested with Clonorchis sinensis and five control rabbits were examined radiologically by ultrasonography, computed tomography and cholangiography and the results were correlated with pathologic findings. Dilatation of the intrahepatic small bile ducts of the liver was due to obstruction by flukes: oval or elliptical small filling defects or irregular margin of the bile ducts on cholangiogram or intraluminal echoes on sonogram represented flukes per se; periductal thickening on sonogram and periductal enhancement of bile ducts on CT were due to inflammatory cell infiltration, adenomatous hyperplasia and periductal fibrosis: band like enhancement at the periphery of the liver on CT represented proliferated bile ducts, destruction of liver cells and resultant fibrosis. The study confirmed the pathological bases for the radiological findings of clonorchiasis in liver and bile ducts and will, perhaps, serve as a basis for the future radiologic-pathological correlation of clonorchiasis and in further clinical and experimental researches in the biliary tract diseases.
Bile Ducts
;
Biliary Tract Diseases
;
Cholangiography
;
Clonorchiasis*
;
Clonorchis sinensis
;
Dilatation
;
Fibrosis
;
Humans
;
Hyperplasia
;
Liver
;
Methods
;
Rabbits*
;
Trematoda
;
Ultrasonography
9.Results of Experimental Canine Gastric Wall Ligation using 0-shaped Rubber Band.
Jin Hai HYUN ; Ho Sang RYU ; Chang Duck KIM ; Hoon Jai CHUN ; Han Kyum KIM
Korean Journal of Gastrointestinal Endoscopy 1996;16(2):145-155
Objectives: Endoscopic variceal ligation is well established metbod of treatment for esophageal varices whereas for gastric varices there has not been any systematic report of its use as a method of treatment. To evaluated its possible clinical application, the band ligation(banding) and the method of band ligation in conjuction with submucosal ethanolamine injection(banding with sclero) were tested on canine stomach, and results were assessed.
Esophageal and Gastric Varices
;
Ethanolamine
;
Ligation*
;
Rubber*
;
Stomach
10.The palato-gingival groove - anatomical anomaly occurred in maxillary lateral incisors: case reports.
Hyun Il KIM ; Young Shin NOH ; Hoon Sang CHANG ; Hyun Wook RYU ; Kyung San MIN
Journal of Korean Academy of Conservative Dentistry 2007;32(6):483-490
This report describes clinical cases of a palato-gingival groove on a maxillary lateral incisor with associated localized periodontal disease and pulp necrosis. The tooth of the first case was extracted because of severe bone destruction. The palato-gingival groove of the second case was eliminated using a round bur, and the resulting defect was filled with synthetic graft and covered by an absorbable membrane. Both diagnosis and treatment of palato-gingival groove were very difficult and usually extraction of the involved tooth is the treatment of choice, but combined endodontic-periodontic treatment allowed the tooth to be saved.
Dental Pulp Necrosis
;
Diagnosis
;
Incisor*
;
Membranes
;
Periodontal Diseases
;
Tooth
;
Transplants