PURPOSE: We wanted to evaluate the usefulness of three-dimensional reconstructive images using multidetector computed tomography (MDCT) for thoracic traumatic patients visiting emergency room. MATERIALS AND METHODS: 76 patients with fractures of the 105 patients who visited our emergency room with complaints of thoracic trauma were analyzed retrospectively. All the patients had thoracic MDCT performed and the three-dimensional reconstructive images were taken. The fractures were confirmed by axial CT, the clinical information, whole body bone scanning and the multiplanar reformation images. Plain x-ray images were analyzed by the fractured sites in a blind comparison of two radiologists' readings, and then that finding was compared with the axial CT scans and the three-dimensional reconstructive images. RESULTS: The fracture sites were rib (n=68), sternum (n=14), clavicle (n=6), scapula (n=3), spine (n=5) and combined fractures (n=14). Plain x-ray and axial CT scans had a correspondency of 0.555 for the rib fractures. Axial CT scans and the three-dimensional reconstructive images had a correspondency of .952. For sternal fractures, those values were 0.692 and 0.928, respectively. The axial CT scans and three-dimensional reconstructive images showed sensitivities of 94% and 91% for rib and other fractures, respectively, and 93% and 100% for sternal fracture, respectively. Three-dimensional reconstructive image had an especially high sensitivity for the diagnosis of sternal fracture. CONCLUSION: While evaluating thoracic trauma at the emergency room, the three-dimensional reconstructive image was useful to easily diagnose the extent of fracture and it was very sensitive for detecting sternal fracture.
Clavicle ; Diagnosis ; Emergency Service, Hospital ; Humans ; Multidetector Computed Tomography ; Reading ; Retrospective Studies ; Rib Fractures ; Ribs ; Scapula ; Spine ; Sternum ; Tomography, X-Ray Computed

PURPOSE: We wanted to evaluate the usefulness of three-dimensional reconstructive images using multidetector computed tomography (MDCT) for thoracic traumatic patients visiting emergency room. MATERIALS AND METHODS: 76 patients with fractures of the 105 patients who visited our emergency room with complaints of thoracic trauma were analyzed retrospectively. All the patients had thoracic MDCT performed and the three-dimensional reconstructive images were taken. The fractures were confirmed by axial CT, the clinical information, whole body bone scanning and the multiplanar reformation images. Plain x-ray images were analyzed by the fractured sites in a blind comparison of two radiologists' readings, and then that finding was compared with the axial CT scans and the three-dimensional reconstructive images. RESULTS: The fracture sites were rib (n=68), sternum (n=14), clavicle (n=6), scapula (n=3), spine (n=5) and combined fractures (n=14). Plain x-ray and axial CT scans had a correspondency of 0.555 for the rib fractures. Axial CT scans and the three-dimensional reconstructive images had a correspondency of .952. For sternal fractures, those values were 0.692 and 0.928, respectively. The axial CT scans and three-dimensional reconstructive images showed sensitivities of 94% and 91% for rib and other fractures, respectively, and 93% and 100% for sternal fracture, respectively. Three-dimensional reconstructive image had an especially high sensitivity for the diagnosis of sternal fracture. CONCLUSION: While evaluating thoracic trauma at the emergency room, the three-dimensional reconstructive image was useful to easily diagnose the extent of fracture and it was very sensitive for detecting sternal fracture.
Clavicle ; Diagnosis ; Emergency Service, Hospital ; Humans ; Multidetector Computed Tomography ; Reading ; Retrospective Studies ; Rib Fractures ; Ribs ; Scapula ; Spine ; Sternum ; Tomography, X-Ray Computed

No abstract available.
Fibrosis*

This study was performed to evaluate the diagnostic value of colposcopy by comparing colposcopic findings with cytology, histology of colposcopically directed biopsy and final biopsy result on hysterectomy. From January 1, 1988 to August 31, 1996, the colposcopic examinations was undertaken in 1200 patients, excluding grossly visible carcinoma of the cervix. The result were as follows : 1. Colposcopic examinations were satisfactory in 95.4% and unsatisfactory in 4.58%. 2. The accuracy rate of cytologic diagnosis was 73.1% and colposcopic impression was 93.1%. 3. The false negative rate of colposcopic impression was 2.6%, much less than 24,7% of cytologic examination. 4. The cytologic accuracy rate in cervicitis was higher than that of colposcopic impression but the accuracy rate of colposcopic impression in diagnosis of cervical intraepithelial neoplasia was higher than that of cytology. 5. Among 97 cases in which colposcopically directed biopsy were performed, more advanced lesion were disclosed in 12 cases(12.4%).
Biopsy ; Cervical Intraepithelial Neoplasia ; Cervix Uteri ; Colposcopy* ; Diagnosis ; Early Diagnosis* ; Female ; Humans ; Hysterectomy ; Uterine Cervical Neoplasms* ; Uterine Cervicitis

No abstract available.
Glioblastoma*

In 1957, human skin infection by M. canis were firstly reported in Kyungsang province in Korea. Later, in 1960 new cases were also reported in the other province, the Choongchung. However, M. canis infection has been reported only sporadically in Seoul city. This extremely low incidenc in this area may not represent true negative rate but reflect lack of the alertness of .M. canis infection. During the years 1978 and 1979, 15 out-patients were diagnosed as M canis infection of the skin at the Department of Dermatology of Severance Hoapital, Yonsei University. These 15 patients were found to belong to six different families residing in the central Korea and never resided outside of that area, The Kyungki province. Majority of the cases(11/15) were clinically diagnosed as tinea corporis, as Kerion celsi and 4 cases were tinea capitis. Among them, combined infection by tinea capitis and tinea corporis were confirmed in two patients. Although the ages of the pateints were widely distributed from 2 to 36 years, children under age 10 were the major population among thern. Five domestic cats from 5 families were examined and confirmed to be infected by M. cams.
Animals ; Cats ; Child ; Dermatology ; Humans ; Korea* ; Microsporum* ; Outpatients ; Seoul ; Skin ; Tinea ; Tinea Capitis

No abstract available.
Aneurysm* ; Arteries*

The purpose of this study was to determine the effect of finish line design, amount of incisal reduction, and loading condition on the stress distribution in anterior all-ceramic crowns. Three-dimensional finite element models of an incisor all-ceramic crown with 3 different finish line designs : 1) shoulder with sharp line angle 2) shoulder with rounder line angle 3) chamfer : and 2 different incisal reductions : 2mm and 4mm were developed. 300 N force with the direction of 45 degree to the long axis of the tooth was applied at 3 different positions : A) incisal 1/3, B) incisal edge, C) cervical 1/5. Stresses developed in ceramic and cement were analyzed using three-dimensional finite element method. The results were as follows : 1. Stresses were concentrated in the margin region, which were primarily compressive in the labil and tensile in the lingual. 2. Stresses were larger in the area near line angle than on the crown surface of the margin region. In case of shoulder with sharp line angle, stresses were highly concentrated in the porcelain near line angle. 3. At the interface between porcelain and cement and at the porcelain above the margin on crown surface, stresses were the highest in chamfer, and decreased in shoulder with sharp line angle and shoulder with rounded line angle, respectively. 4. At the interface between cement and abutment on crown surface, stresses were the highest in shoulder with sharp line angle, and decreased in shoulder with rounded line angle and chamfer, respectively. 5. The amount of incisal reduction had little influence on the stress distribution in all-ceramic crowns. 6. When load was applied at the incisal edge, higher stresses were developed in the margin region and the incisal edge than under the other loading conditions. 7. When load was applied at the cervical 1/5, stresses were very low as a whole.
Axis, Cervical Vertebra ; Ceramics ; Crowns* ; Dental Porcelain ; Finite Element Analysis* ; Incisor ; Shoulder ; Tooth

The purpose of the present study was to define the normal range of plasma concentration of angiotensin I-converting enzyme(ACE), N-acetyl-b-D-glucosaminidase(NAG), inactive and active renin, and atrial natriuretic peptide(ANP) in normal Korean adult male in terms of aging. Both plasma ACE activity and NAG concentration were measured by spectrofluorometry, and the plasma renin activity and ANP concentration were measured using radioimmunoassay. The ACE was 67.7+-3.6 nM His-Leu/min/ml and did not change in terms of age. The plasma NAG activity tended to decrease. Both plasma active and inactive renin activities were 2.1+-0.2 and 3.0+-0.3 ngAI/ml/h and tended to decrease in terms of aging. The percentage of inactive renin to total renin was 57.2+-2.9% at age 21-30 and also tended to decrease in terms of aging. Plasma ANP concentration at age 22 was 59.6+-2.9 pg/ml.
Adult ; Aging ; Angiotensins ; Atrial Natriuretic Factor ; Humans ; Male ; Plasma ; Radioimmunoassay ; Reference Values ; Renin ; Spectrometry, Fluorescence

Among the four-hundred patients with cerebral aneurysms confirmed by cerebral angiography, we divided them into two age groups, one with ages 39 years or younger(young-aged group: 51 patients, 12.8%), and another with ages 65 years or older(old aged group: 45 patients, 11.3%). A comparison was undertaken in regard to clinical characteristics and overall outcome in two groups. In young-aged group, the female-to-male ratio was 2.2: 1 whereas, women was predominant by five times more in old aged group. Anterior communicating artery aneurysm was the most common site(43.1%) in young-aged group, unlike to old aged group where posterior communicating artery was the most common site(33.3%). The most common symptom was headache in both groups, and the hypertension was more frequent in young-aged group(45.5%) than old-aged group(33.3%). Surgery was performed in 43 patients(84%) in younger group, and 37 patients(82.2%) in elderly group. Young-aged group showed more favorable outcome(91%) than old-aged group(70%).
Aged ; Arteries ; Cerebral Angiography ; Female ; Headache ; Humans ; Hypertension ; Intracranial Aneurysm* ; Prognosis