1.Three dimensional finite element analysis of mandibular stresses under complete dentures with variant artificial teeth forms and occlusal patterns.
Cheol Gyu LEE ; Chang Whe KIM ; Yung Soo KIM
The Journal of Korean Academy of Prosthodontics 1993;31(3):351-384
No abstract available.
Denture, Complete*
;
Finite Element Analysis*
;
Tooth, Artificial*
2.Localized Fibrous Mesothelioma of the Liver: A Case Report.
Young Hwan KIM ; In Chul LEE ; Moon Gyu LEE ; Yong Ho AUH ; Young Cheol WEON ; Seung Gyu LEE ; Yoon Jeong KIM
Journal of the Korean Radiological Society 1995;33(4):605-607
Localized fibrous mesothelioma of the liver is very rare benign tumor. It usually manifest large palpable hepatic mass in right upper quadrant area, and the prognosis is excellent by surgical resection. Contrast enhanced CT scan shows well defined hyperattenuating mass and celiac anglogram shows hypervascular mass. Recently we experienced 1 case of localized fibrous mesothelioma of the liver, and we report CT and anglographic findings of this tumor.
Liver*
;
Prognosis
;
Solitary Fibrous Tumor, Pleural*
;
Tomography, X-Ray Computed
3.A Case of Sacral Agenesis.
Cheol LEE ; Byung Uk PARK ; Tae Gyu HWANG ; Soon Yong LEE
Journal of the Korean Pediatric Society 1986;29(1):79-83
No abstract available.
4.Rectal carcinoma presenting with a solitary brain metastasis.
Byung Sik KIM ; Jin Cheon KIM ; Kun Choon PARK ; Moon Gyu LEE ; In Cheol LEE ; Yang GWON
Journal of the Korean Society of Coloproctology 1992;8(2):181-186
No abstract available.
Brain*
;
Neoplasm Metastasis*
5.Clinical Analysis of Down Beat Nystagmus in Atypical Positional/ing Vertigo .
Gyu Cheol HAN ; Ju Hyoung LEE ; Eun Jung LEE ; Jae Jun SONG
Journal of the Korean Balance Society 2004;3(1):150-155
BACKGROUND AND OBJECTIVES:Traditionally, down beat nystagmus is regarded as a sign of central nervous system dysfunction. But, several years has passed since Herdman et al reported the down beat nystagmus developed during treatment maneuvers for posterior semicircular canal benign paroxysmal positional vertigo(BPPV). We undertook this study to evaluate the character and clinical analysis of the positional or positioning down beat nystagmus, to discuss the clinical significance of positional or positioning down beat nystagmus as a diagnostic criteria of superior semicircular canal BPPV, and to propose the new treatment method. MATERIALS AND METHOD:From November 1999 to March 2004, we sampled the 103 patients with positional or positioning down beat nystagmus. Of these patients, we selected 16 patients except for the patients with central nervous system dysfunction, nonspecific or artifact result, idiopathic origin. RESULTS:All of 16 patients had no sign and radiologic result of central nervous system disorder. 10 patients was reported or suspected the diagnosis of posterior semicircular canal BPPV. Fatigability was reported in 9 patients and reversibility was reported in 1 patient. Average latency was checked less than 2 seconds. CONCLUSION:Although the diagnostic criteria of superior semicircular canal BPPV that we reported was not controversial, we expect that this criteria is useful in diagnosis for patients with atypical positional or positioning down beat nystagmus. And the new treatment method that we reported will has the better results than previous method.
Artifacts
;
Central Nervous System
;
Diagnosis
;
Humans
;
Semicircular Canals
;
Vertigo*
6.Effect of Cyclic GMP on Human Cytomegalovirus Gene Expression.
Joo Hyun YOON ; Gyu Cheol LEE ; Byung Hak SONG ; Young Jin KIM ; Chan Hee LEE
Journal of the Korean Society of Virology 1999;29(4):261-269
No abstract available.
Cyclic GMP*
;
Cytomegalovirus*
;
Gene Expression*
;
Humans*
7.A Case of Werdnig Hoffmann Disease.
Woo Yeong CHUNG ; Cheol LEE ; Tai Gyu HWANG ; In Soon PARK ; Soon Young LEE ; Jong Eun JOO
Journal of the Korean Pediatric Society 1985;28(7):726-730
No abstract available.
Spinal Muscular Atrophies of Childhood*
8.Two Cases of Massive Ovarian Edema.
Young Gyu LEE ; Sam Bong KIM ; Heung Gon KIM ; Weon Cheol HAN ; Hyung Bae MOON
Korean Journal of Gynecologic Oncology and Colposcopy 1994;5(2):98-103
Massive ovarian deema is a tate conditian. It is a benign enlargement of the ovary caused by accumulation of fluid, which is thought to result from intermittent partial toraion of the ovarian pedicle. Histologically, the ovaries were characterized by diffuse edema of medulla and inner cortex. Two cases of massive ovanan edema are reported with brief review of the literatures.
Edema*
;
Female
;
Ovary
9.A case of hyperimmunoglobulin E syndrome.
Myeong Cheol SHINN ; Sung Dong CHOI ; Byung Gyu SUH ; Jin Han KANG ; Joon Sung LEE
Journal of the Korean Pediatric Society 1991;34(2):292-298
No abstract available.
10.MTF Evaluation and Clinical Application according to the Characteristic Kernels in the Computed Tomography.
Beong Gyu YOO ; Dae Cheol KWEON ; Jong Seok LEE
Korean Journal of Medical Physics 2007;18(2):55-64
Our objective was to evaluate the clinical feasibility of spatial domain filtering as an alternative to additional image reconstruction using different kernels in CT. Kernels were grouped as H30 (head medium smooth), B30 (body medium smooth), S80 (special) and U95 (ultra sharp). Derived from thin collimated source images, four sets of images were generated using phantom kernels. MTF (50%, 10%, 2%) measured with H30 (3.25, 5.68, 7.45 lp/cm), B30 (3.84, 6.25, 7.72 lp/cm), S80 (4.69, 9.49, 12.34 lp/cm), and U95 (14.19, 20.31, 24.67 lp/cm). Spatial resolution for the U95 kernel (0.6 mm) was 33.3% greater than that of the H30 and B30 (0.8 mm) kernels. Initially scanned kernels images were rated for subjective image quality, using a five-point scale. Image scanned with a convolution kernel led to an increase in noise (U95), whereas the results for CT attenuation coefficient were comparable. CT images increase the diagnostic accuracy in head (H30), abdomen (B30), temporal bone and lung (U95) kernels may be controlled by adjusting CT various algorithms, which should be adjusted to take into account the kernels of the CT undergoing the examination.
Abdomen
;
Head
;
Image Processing, Computer-Assisted
;
Lung
;
Noise
;
Temporal Bone