1.Computerized Quantitative Analysis of Fetal Heart Rate after Acoustic Stimulation in Preterm Pregnancies.
Moon Il PARK ; Sung Ro CHUNG ; Seung Kwon KOH ; Sung Ho HAH ; Gyu Hong CHOI
Korean Journal of Perinatology 1998;9(3):263-269
Acoustic stimulation test(AST), is currently being used as an alternative tool of nonstress test (NST). However, there are no standard guideline for analysis of AST. Computerized numerical analysis of AST would be helpful for development of diagnostic criteria of AST. Fifty-one normal pre-term pregnancies entered to this study after conventional 20-minutes NST and 10-minutes AST. Acoustic stimulations were performed using Fetal Acoustic Stimulator (Model 146, Corometrics, US). We analyzed the FHR response after acoustic stimulation using our on-line computerized FHR analysis system, HYFM-I & II software. The changes of loss of signal, baseline FHR, variability, number of fetal movements, and number of FHR accelerations were analyzed numerically. The loss of signal was increased about 2 fold(122.61%). The baseline FHR was increased from 144.57bpm to 156.81bpm(8.5%) after acoustic stimulation. Number of fetal movements was increased about 2 fold(from 2.1 to 4.12/10 minutes). FHR variability was also increased from 17.81 bpm to 26.37 bpm. After AST, number of FHR accelaration was increased 55.47%(10sec 10bpm) and 68.42%(15sec 15bpm), respectively. In this study, we acrumulated elemental FHR data using computerized system after AST. These data would be helpful in the accurate analysis of AST and also enable us to develop the objective interpretation system for AST.
Acceleration
;
Acoustic Stimulation*
;
Acoustics*
;
Female
;
Fetal Heart*
;
Fetal Movement
;
Heart Rate, Fetal*
;
Pregnancy
;
Pregnancy*
2.Acupuncture needles in the abdominal organs: features on plain radiography, US and CT.
Seung Yon BAEK ; Moon Gyu LEE ; Hye Young CHOI ; Kyoung Sik CHO ; Yong Ho AUH
Journal of the Korean Radiological Society 1992;28(4):589-592
Acupuncture with gold needle insertion is utilized in Oriental medicine, and the effect of therapy is represented by anti-inflammatory and analgesic function, But sometimes the needle is erroneously inserted into abdominal organs, and then it may cause dangerous complications. We report a case of multiple gold needles in the abdominal organs without having definete clinical symptoms.
Acupuncture*
;
Medicine, East Asian Traditional
;
Needles*
;
Radiography*
3.A Case of Polycythemia Vera with Splinter Hemorrhages.
Jong Rok LEE ; Seung Gyu LEE ; Gwang Seong CHOI ; Young Keun KIM
Annals of Dermatology 2002;14(4):207-209
Once splinter hemorrhage can be considered as a pathognomonic sign of subacute bacterial endocarditis. But it can also be associated with a variety of systemic disorders that increase capillary fragility or primary nail bed involvement in dermatologic disorders. The cause of splinter hemorrhage can usually be established by careful history and physical examination. We report a case of 33-year-old man with splinter hemorrhages, who had polycythemia vera.
Adult
;
Capillary Fragility
;
Endocarditis, Subacute Bacterial
;
Hemorrhage*
;
Humans
;
Physical Examination
;
Polycythemia Vera*
;
Polycythemia*
4.The Pathomorphologic Study of Spinal Stenosis as Seen on CT - Myelography of the Lumbar.
Woo Seog LEE ; Byung Gyu AHN ; Sun Kil CHOI ; Seung Koo KANG
Journal of Korean Neurosurgical Society 1987;16(2):439-446
This study has been examined different morphologic measurements in the evaluation of patients with lumbar spinal stenosis. Preoperative CT-Myelography from 30 patients who underwent surgery for central lumbar stenosis were analyzed. Based on this, we concluded as follows : 1) Bony measurement alone did not reliably identify patients with spinal stenosis. 2) Measurement of the transverse area of the dural sac on CT-Myelography was the most accurate method for identifying stenosis. 3) Lumbar myelography was still considered to have an important role in the valuation of a patient with stenosis because of correlation between the cross-sectional area of the dural sac and the anteroposterior diameter of the dural sac was excellent. 4) We identified soft-tissue problems as the main cause of stenosis. 5) The most common level of maximum stenosis was L4-5.
Constriction, Pathologic
;
Humans
;
Myelography*
;
Spinal Stenosis*
5.Traumatic dislocation of peroneal tendons: one case report.
Seung Ho YUNE ; Kwang Jin RHEE ; Deug Soo HWANG ; Sang Deug LIM ; Gyu Jong CHOI
The Journal of the Korean Orthopaedic Association 1992;27(7):1949-1954
No abstract available.
Dislocations*
;
Tendons*
6.Birth Year Estimation of Skeletal Remains by Radiocarbon Dating for Teeth
Jong-Pil PARK ; Seung Gyu CHOI
Korean Journal of Legal Medicine 2022;46(4):114-121
Identifying remains is an important role of forensic medicine. For identification, dating, i.e., estimating the birth year and death year, is expected as useful, however has not yet been practically applied. A dating method using radiocarbon analysis was recently introduced and related studies have been reported. In this study, we conducted radiocarbon analysis on teeth and aimed to develop a formula to estimate the birth year. Fifteen autopsy cases from the National Forensic Service, from December 2014 to December 2020, with known birth year were selected for inclusion. For each case, dentin of the first molar in mandible was taken, radiocarbon analysis was carried out and the corresponding estimated birth year were calculated using the bomb peak curve. The differences between the birth year and the teeth year were determined and analyzed on the influence of variables. A formula for estimating the birth year was developed and the applicability of the formula was determined. The difference between the birth year and the teeth year was 2.6 years on average for cases born before 1963, and 5.7 years for those born after 1963. The estimation formula of birth year was as follows: (Before 1963) Birth year=0.565×(Tooth year)–0.446×(Age)+875.001, (After 1963) Birth year=Tooth year–5.7. This study is meaningful in that it reduced the error by using only the first molars of the lower jaw as a sample, and presented an estimation formula of birth year that can be applied in practice through radiocarbon analysis of teeth.
7.Death Year Estimation of Skeletal Remains by Radiocarbon Dating of Femur
Hyojin LEE ; Seung Gyu CHOI ; Jong-Pil PARK
Korean Journal of Legal Medicine 2023;47(4):153-162
The identification for skeletal remains is one of roles of forensic medicine. For this purpose, dating, i.e., estimating the birth year and death year is expected as useful, however has not yet been practically applied. A dating method using radiocarbon analysis was recently introduced and related studies have been reported. In this study, we tried to confirm the applicability of radiocarbon dating for the identification of skeletal remains and to develop formulas to estimate the death year. Thirty-four autopsy cases from the National Forensic Service, from December 2014 to July 2022, with known death year were selected for inclusion. For each case, two samples were taken: the spongy bone of the femur head, and the compact bone of the femur midshaft. For each sample, radiocarbon analysis was carried out and the corresponding femur year were calculated using the bomb peak curve. The differences between the femur year and the death year were determined and analyzed on the influence of variables. A formula for estimating the death year was developed and the applicability of the formula was determined. The results showed that the difference between death year and femur head year was 14.2 years on average. In male, the difference between death year and femur head year increased with age, however, it did not show any difference according to age in female. The estimation formula of death year was as follows: (In male) Death year=0.993×(Femur head year)+0.288×(Age)+15.061, (In female) Death year=0.769×(Femur head year)-0.218×(Age)+489.676. The formula for male had relatively high explanatory power (adjusted R2=0.710), however, the formula for female had low explanatory power (adjusted R2=0.588). This study is meaningful because it is the largest single study of its kind, to date, and uses specific and identical skeleton (femur head/femur midshaft) to increase the accuracy of the death year estimation. We expect that the results of this study will be supplemented through additional research in the future.
9.A Case of Internalization of Thracoamniotic Shunt of Fatal Bilateral Chylothorax.
Soo Pyung KIM ; Jong Chul SHIN ; Sa Jin KIM ; Seung Hye RHO ; Gui Se Ra LEE ; Seung Gyu SONG ; Yong Suk LEE ; Hae Gyu LEE ; Yoon Kyung CHOI
Korean Journal of Perinatology 1998;9(4):429-433
Using 3D ultrasound, bilateral chylothorax was diagnosed antenatally in the second trimester. Apparently stable, bilateral pleural effusion progressed rapidly to severe hydrops with facial edema during observation, and then we decided bilateral pleural-amniotic shunt operation. Here we present a case where drainage of pleural effusion by a double reverse pig tail stent made by ourself was achieved, although placement of the thoracoamniotic shunt resulted in near complete drainage of bilateral pleural effusion with normalization of intrathoracic anatomic relationships, subsequent resolution of fetal hydrops, but the ultimate outcome was unsuccessful due to the internalization of one catheter and unknown sudden death. We think that ongoing research is required to further evaluation about complications associated with this procedure, specifically failure of function due to obstruction, migration of the catheter,
Catheters
;
Chylothorax*
;
Death, Sudden
;
Drainage
;
Edema
;
Female
;
Humans
;
Hydrops Fetalis
;
Pleural Effusion
;
Pregnancy
;
Pregnancy Trimester, Second
;
Stents
;
Tail
;
Ultrasonography
10.A case of gastric glomus tumor.
Seung Woo LEE ; Se Jeong OH ; Seung Mahn PARK ; Young Ha KIM ; Yang Keun PARK ; Myung Gyu CHOI
Journal of the Korean Surgical Society 1993;45(5):735-740
No abstract available.
Glomus Tumor*