1.CT staging of lung cancer: the role of artificial pneumothorax.
Jin Seong LEE ; Jung Gi IM ; Man Chung HAN
Journal of the Korean Radiological Society 1991;27(1):65-70
No abstract available.
Lung Neoplasms*
;
Lung*
;
Pneumothorax, Artificial*
2.Clinical evaluation of skin cancer for Western Kyeong-Nam.
Gi Ho PARK ; Seong Geun PARK ; Sang Yeul LEE
Journal of the Korean Society of Plastic and Reconstructive Surgeons 1993;20(4):742-747
No abstract available.
Skin Neoplasms*
;
Skin*
3.A Case of Congenital Systemic Cytomegalic Inclusion Disease.
Kong Sik KIM ; Eun Young KWAK ; Ho Seong YOO ; Sang Gi PARK ; Young Bong PARK
Journal of the Korean Pediatric Society 1990;33(2):220-224
No abstract available.
Cytomegalovirus Infections*
4.Effects of Brain Death on the Myocardium in Canine Brain Death Models.
Myeong Chan CHO ; Gi Byoung NAM ; Dong Woon KIM ; Seong Sook KIM
Korean Circulation Journal 1996;26(1):100-111
BACKGROUND: Clinical and experimental studies have suggested that brain death may cause hemodynamic, electrocardiographic, functional or histopathologic changes of the heart. METHODS: Brain death was induced by increasing intracranial pressure(ICP) abruptly by intermittent bolus injection of saline(model ) or gradually by continuous infusion of saline(model ) to the epidural catheter in 5 mongrel dogs, respectively. Hemodynamic and biochemical changes during the process of brain death and histopathologic changes of the myocardium were analyzed and compared in two brain death models, and the association of apoptosis was also evaluated. RESULTS: 1) Two predominant subsets of acute contraction band lesion were produced in both brain death models : paradiscal and holocystic contraction band lesions. Both contraction band lesions were more prevalent in brain death model . 2) The frequency of both contraction band lesions was lowest in the epicardial layer and highest in the endocardial layer in both models, but no correlation was observed between the degree of contraction band lesions and ICP, LV maximum +dp/dt or catecholamine levels. There was no statistical difference between any of the LV circumferential blocks and either type of contraction band lesion, and transaxial distribution was not also different in both models. 3) There was no remarkable histopathologic changes in the analysis of major epicardial coronary arteries. Apoptotic cells were suggested in the scattered myocytes in the light microscopy and apoptosis was detected by in situ nick end labeling method. Electron microscopy revealed a condensation of nuclear chromatin and convolution of nuclear membrane in those myocytes. CONCLUSIONS: Myocardial changes due to brain were observed frequently, and few apoptotic cells were found in the brain death heart. Studies on the treatment strategy to minimize damages of myocardial structure and function caused by brain death should be followed in the near future.
Animals
;
Apoptosis
;
Brain Death*
;
Brain*
;
Catheters
;
Chromatin
;
Coronary Vessels
;
Dogs
;
Electrocardiography
;
Heart
;
Hemodynamics
;
In Situ Nick-End Labeling
;
Microscopy
;
Microscopy, Electron
;
Muscle Cells
;
Myocardium*
;
Nuclear Envelope
5.A Case of Embryonal Rhabdomyosarcoma of the External Female Genitalia.
Sung Koan CHOI ; Gi Young SEONG ; Do Won KIM ; Sang Lip CHUNG
Korean Journal of Dermatology 1988;26(6):928-933
We report a case of embryonal rhabdomyosarcoma with palpable right inguinal lymph node in a 6-year-old girl which developed rapidly on the right labia minora over a period of 2 montha. Histopathological study showed characteristic findings of spindle shaped rhabdomyoblast with hyperchromatic nuclei and cytoplasmicprocesses. After a preoperative chemotherapy with vincristine, actinomycin D, and cytoxan, the size of the mass was reduced, and lymph nodes were not palpable. And then, simple vulvectomy. postoperhtive cheirnatherapy and radiotherapy were done.
Child
;
Cyclophosphamide
;
Dactinomycin
;
Drug Therapy
;
Female
;
Female*
;
Genitalia, Female*
;
Humans
;
Lymph Nodes
;
Radiotherapy
;
Rhabdomyosarcoma, Embryonal*
;
Vincristine
6.Disease activity of idiopathic pulmonary fibrosis: value of high resolution CT.
Jin Seong LEE ; Jung Gi IM ; Man Chung HAN ; Chu Wan KIM ; Jin Suk SUH
Journal of the Korean Radiological Society 1991;27(1):55-59
No abstract available.
Idiopathic Pulmonary Fibrosis*
7.Transrectal Ultrasonography in Female Stress Urinary Incontinence.
Jong Kwan LEE ; In Gi SEONG ; Bo Hyun HAN
Korean Journal of Urology 1997;38(9):979-984
Radiologic chain cystourethrography for stress urinary incontinence (SUI) has several disadvantages including the risk of excessive radiation, the time required for the test, and the discomfort of the patients. Nowadays it is widely accepted that transrectal ultrasonography for evaluating bladder and urethra provides similar information about SUI comparing with the conventional radiographic examination. We evaluated the effectiveness of transrectal ultrasonography in the diagnosis of SUI in 30 women with SUI and in normal 20 women as a control. The results of evaluation were as follows: 1. Mean age was 52.9 in SUI group and 48.5 in control group, and mean parity was 2.8 in SUI group and 3 In control group. 2. According to the symptom grading by Stamey, 8 patients (27%) were Grade I and 22 (73%) were Grade II. 3. The mean value of posterior urethrovesical angle (PUVA) at resting state was 139 +/- 14.7 degrees in control group and 145 +/- 15.2 degrees in SUI group (p>0.05). 4. The mean value of PUVA at strain state was 146 +/- 7.9 degrees in control group and 169 +/- 12.1 degrees in SUI group (p<0.05). 5, Bladder neck descent was 7.3 +/- 2.7 mm (mean+/-SD.) in control group and 13.7+/-6.2 mm in SUI group (p<0.05). 6. Diagnostic criteria of SUI in transrectal ultrasonography are more than 149.5 degrees in PUVA at strain state, and more than 9.1 millimeter in bladder neck descent. 7. Sensitivity and specificity of transrectal ultrasonography in the diagnosis of SUI were 86% and 80% in PUVA at strain state, 80% and 80% in bladder neck descent, respectively. 8. There was significant change of transrectal ultrasonographic finding in pre and post-bladder neck suspension (p<0.05). In conclusion, transrectal ultrasonography is simple, non-invasive, not shameful, and free of radiation, so might be a useful diagnostic method in female SUI.
Diagnosis
;
Female*
;
Humans
;
Neck
;
Parity
;
Sensitivity and Specificity
;
Shame
;
Ultrasonography*
;
Urethra
;
Urinary Bladder
;
Urinary Incontinence*
8.Teleradiology(TELEACE) system: Results of field trial.
Jong Min LEE ; Gi Bum KIM ; Yeung Soon SEONG ; Kyung Jin SUH ; Duk Sik KANG
Journal of the Korean Radiological Society 1993;29(2):332-338
We report the results of field operation of TELEACE system between Kyung-Pook National University Hospital and Ul-Jin Goon Health Care Medical Center from December, 1990 to September, 1991, which had been operated as a kind of Integrated Services Digital Nework projects by KOREA TELECOMMUNICATION Inc. Ul-Jin Goon Health Care Medical Center transmitted 414 plain radiographs to our hospital in speed of 9600BPS. Each image was composed of 1024X1024 pixelsX8 bits/pixel. In our hospital, the image files were displayed on high resolution monitor (1280×1024 pixets). Text files of image interpretations were transmitted to the health care medical center. The two radiologists who had interpreted the transmitted images, went to the health care medical center and read radiographic film with blind test method. We obtained the following results: false negative rate of 6.3%, false postitve rate of 2.4%, mean sensitivity of 81.4%, mean specificity of 96.3%, and mean accuracy of 91.3%. In predictive value of 0.05, there was no significant difference between results of these two types of radiographs. In conclusion, TELEACE system was valuable to the clinicians isolated from services of radiologists.
Delivery of Health Care
;
Korea
;
Methods
;
Sensitivity and Specificity
;
Telecommunications
;
X-Ray Film
9.Comparative study on the morphology of renal pelvoclyceal systems of healthy persons and urinary stone formers by excretory urography.
Joon Hwan PARK ; In Gi SEONG ; Bo Hyun HAN
Korean Journal of Urology 1993;34(6):1022-1027
Until recently almost exclusively clinicochemical urine parameters have been used to determine the risk of urinary stone formation, because the urinary stone disease is considered as one of metabolic disorders. But the morpholgy of renal pelvocalyceal system also affects on the formation of stone particle and its growth, mainly by establishing urinary stasis. We reviewed 163 excretory urograms retrospectively, and pelvocalyceal systems of healthy persons and urinary stone formers were compared with regard to their morphology. In summary of the study, the majority of pelvocalyceal systems of urinary stone formers showed (1) an increased number of papillae; (2) a greater cranial and caudal exlension of pelvocalyceal sysrem:(3) an increased circular radius of the pelvocalyceal system and hence an increased pelvocalyceal system volume ;(4) an increased pelvic area, especially an enlarged total calyx area and hence a larger total area. (5) a higher degree of ramification and a higher number of branches in the calyx groups ; (6) a more sharp angle between the most caudally situated calyx neck and the direction of pelvic outlet :(7) a highly situated origin or the ureter more frequently ;(8) more frequent ampullary patterns of pelvocalyceal system. But the number of major calyx, the total calyx angle and the angle between the direction of pelvic outlet and the main direction of the ureter showed no statistically significant difference between the urinary stone formers and the healthy persons. The results indicate that the study on the morphology of the renal pelvocalyceal system by excretory urography may be used as a screening test to determine the risk of urinary stone formation.
Humans
;
Mass Screening
;
Neck
;
Radius
;
Retrospective Studies
;
Ureter
;
Urinary Calculi*
;
Urography*
10.Transitional Zone Index: a Predictor of Acute Urinary Retention in Patients with Benign Prostatic Hyperplasia.
Jeong Oh LEE ; In Gi SEONG ; Bo Hyun HAN
Korean Journal of Urology 1999;40(11):1506-1512
PURPOSE: To investigate the efficacy of age, International Prostate Symptom Score(I-PSS), quality of life(QOL) score, various parameters obtained by transrectal ultrasonography(TRUS) as predictors of the onset of acute urinary retention in patients with benign prostatic hyperplasia(BPH). MATERIALS AND METHODS: From January 1996 to December 1997, 101 men(mean age 70years, range 52-92) with symptoms of BPH were enrolled in this study. Among them, 36 patients had suffered from acute urinary retention. TRUS was used to calculate the total prostate(TP) volume, the transitional zone(TZ) volume, the transitional zone index(TZ index=TZ volume/TP volume). To compare the usefulness of various indices, the area under the receiver-operator characteristic(ROC) curve was calculated for each index. RESULTS: There were significant differences in age, TP volume, TZ volume, TZ index between patients with and without acute urinary retention, but no significant differences in I-PSS and QOL score. In patients with acute urinary retention, the area under the ROC curve was 0.911 for the TZ index, 0.892 for the TZ volume, 0.769 for the TP volume and 0.660 for the age. CONCLUSIONS: The TZ index is a useful predictor of acute urinary retention in patients with BPH and may be a useful parameter for decision of surgical intervention.
Humans
;
Prostate
;
Prostatic Hyperplasia*
;
ROC Curve
;
Urinary Retention*