PURPOSE: MRI is known to be an effective imaging modality of the aorta and its role is steadily increasing in the evaluation of acquired aortic diseases including aortic dissections and aortic aneurysms. However, differentiation of the aortic dissections with thrombosed false lumen from the aortic aneurysm with mural thrombus in MRI has not been easy. Therefore, the authors tried to find the characteristic MR featrses which would to differentiate the two diseases. MATERIALS AND METHODS: MR images of 6 patients with thrombosed aortic dissection and 7 patients with thrombosed aortic aneurysms were reviewed retrospectively and compared in regand to shape and extent of thrombus, dimension of aorta, and luminal flow signal. RESULTS: Thrombosed aortic dissections showed sharply demarcated crescent shaped aortic wall thickening of even thickness involving long segment of the aorta, whereas thrombosed aortic aneurysms showed irregular aortic wall thickening of uneven thickness localized in the short dilated segment of the aorta. Characteristically aortic aneurysm with mural thrombus showed eccentric intraluminal slow flow signal. In contrast to the signal void of the true lumen in aortic dissections, the residual lumen of the aortic aneurysm with mural thrombus revealed intraluminal signal due to slow flow. CONCLUSION: Familiarity to these MRI findings of thrombosed aortic dissections and aortic aneurysms may lead to the accurate differential diagnosis in majority of cases.
Aorta ; Aortic Aneurysm* ; Aortic Diseases ; Diagnosis, Differential* ; Humans ; Magnetic Resonance Imaging* ; Phenobarbital ; Recognition (Psychology) ; Retrospective Studies ; Thrombosis

No abstract available.
Recurrence* ; Seizures, Febrile*

No abstract available.
Pulmonary Artery* ; Takayasu Arteritis*

IVRO is one of the most common procedures to setback prognathic mandible. Since 1993 we have set-up our own protocol for functional physiotherapy(Park's protocol) after IVRO. This is a study on openbite and relapse tendency after IVRO followed by our protocol. We obtained lateral cephalograms of twenty-seven patients which were taken immediately after surgery, 3 months, 6 months and 1 year postoperatively. Changes in positions of each point were analyzed. The results were as follows: 1. No remarkable openbite occured during the first year after IVRO. Upper teeth, lower teeth and anterior mandible moved upward, it seems to show that post-op orthodontic treatment did not contribute to reduce openbite tendency during post-op period. Rater, the lower teeth and mandible moved with the upper teeth as the compensation mechanism. 2. Lower Incisal Edge moved anteriorly up to 6 months, so overjet decreased from 3.3mm to 2.9mm during the first six months. Skeletal changes in anterior mandible showed slight anterior movement, therefore showing slight relapse tendency, but it represented no statistical significance. 3. The physiotherapy according to our protocol was used for only a month after operation, but there was no openbite tendency, and the occlusion was stable over one year.
Compensation and Redress ; Humans ; Mandible ; Open Bite* ; Prognathism* ; Recurrence* ; Tooth

No abstract available.
Fetus* ; Humans ; Infant*

It is the most important to select optimal culture conditions to promote safe embryo growth in the technique of human in vitro fertilization and embryo transfer. It has been shown that the addition of biologic fluids, such as blood serum, of various origins, improved fertilization and early cleavage rates in numerous species. The purpose- of this study is to attempt to measure developmental potential of mouse eggs fertilized and cleaved in Ham's F10 culture medium containing a chelating agent, EDTA and fetal cord serum. hi this study, we selected 40 female mice and 20 male mice, and investigated optimal serum concentration' for mouse embryo growth. Two cell stage mouse embryos were cultured in Ham's F-10 medium, Ham's F-10 medium with various concentrations of EDTA, or Ham's F-10 medium with EDTA and 10% human cord serum. Developmental ratios to morula in Ham's F-10 medium containing various concentrations of EDTA and/or 10% fetal cord serum were significantly higher than in unsupplemented Ham's F-10 medium (p<0.05). Developmental ratios to blastocyst in Ham's F-10 containing 10% fetal cord serum and 5011M or 100pM EDTA were significanldy higher than in unsupplemented Ham's F-10 medium (p<0.05). Developmental ratios to morula in Ham's F-10 containing 10% fetal cord serum and 100,uM EDTA were significanitly higher than in Ham's F-10 with 10% fetal cord serum used commonly in many human IVF centers(p<0.05). Developmental ratio to blastocyst in Ham's F-10 containing 10% fetal cord serum and 100pM EDTA was significanity higher than in Ham's F-10 with 200pM EDTA(p<0.05).
Animals ; Blastocyst ; Edetic Acid* ; Eggs ; Embryo Transfer ; Embryonic Structures* ; Female ; Fertilization ; Fertilization in Vitro ; Humans ; Male ; Mice* ; Morula ; Ovum ; Serum

The purpose of this study is to evaluate the efficacy of the balloon bronchoplasty in the treatment of the tuberculous bronchostenosis. Balloon bronchoplasty was performed in thirteen patients with stenosis of the left main bronchus (two with combined left upper and lower lobar bronchostenosis) using a inflatable balloon catheter under a fluoroscopic guide. We analysed the changes in the changes in the severity of dyspnea and wheezing, serial FEV1/FVC as a parameter of the airflow obstruction, and bronchial diameter and lung volume on chest radiographs. The extent of pulmonary tuberculosis was correlated with the improvement of FEV1/FVC. There was an improvement of dyspnea in 69%(9/13), decrease of wheezing in 69%(9/13), significant increase of FEV1/FVC in 18% (2/11). The increase of the bronchial diameter and lung volume were seen in 84%(11/13) and 53% (7/13), respectively. The significant increase of FEVI/FVC was seen in 28% (2/7) of the patients with lung involvement of tuberculosis less than one third of left upper lobe, whereas there was no increase in those of more than one third. There was no complication except transient leukocytosis, fever and blood-tinged sputum. In conclusion, balloon bronchoplasty is effective in the treatment of medically intractable tuberculous bronchostenosis, and can be considered as an initial method of treatment.
Bronchi ; Catheters ; Constriction, Pathologic ; Dyspnea ; Fever ; Humans ; Leukocytosis ; Lung ; Methods ; Radiography, Thoracic ; Respiratory Sounds ; Sputum ; Tuberculosis ; Tuberculosis, Pulmonary

The purpose of this study is to evaluate the efficacy of the balloon bronchoplasty in the treatment of the tuberculous bronchostenosis. Balloon bronchoplasty was performed in thirteen patients with stenosis of the left main bronchus (two with combined left upper and lower lobar bronchostenosis) using a inflatable balloon catheter under a fluoroscopic guide. We analysed the changes in the changes in the severity of dyspnea and wheezing, serial FEV1/FVC as a parameter of the airflow obstruction, and bronchial diameter and lung volume on chest radiographs. The extent of pulmonary tuberculosis was correlated with the improvement of FEV1/FVC. There was an improvement of dyspnea in 69%(9/13), decrease of wheezing in 69%(9/13), significant increase of FEV1/FVC in 18% (2/11). The increase of the bronchial diameter and lung volume were seen in 84%(11/13) and 53% (7/13), respectively. The significant increase of FEVI/FVC was seen in 28% (2/7) of the patients with lung involvement of tuberculosis less than one third of left upper lobe, whereas there was no increase in those of more than one third. There was no complication except transient leukocytosis, fever and blood-tinged sputum. In conclusion, balloon bronchoplasty is effective in the treatment of medically intractable tuberculous bronchostenosis, and can be considered as an initial method of treatment.
Bronchi ; Catheters ; Constriction, Pathologic ; Dyspnea ; Fever ; Humans ; Leukocytosis ; Lung ; Methods ; Radiography, Thoracic ; Respiratory Sounds ; Sputum ; Tuberculosis ; Tuberculosis, Pulmonary

We retrospectively evaluated the 130 low vision patients on the basis of medical recordings. Men(58.5%) were more than women. The patients in teen-age(11-20yr) were most common(23.9%). Etiologies were aphakia due to congenital cataract(21.5%), macular degeneration(15.4%), and optic atrophy(13.8%) in that order. Low vision aids were prescribed for rehabilitation of the low vision. High-power plus glasses(25.4%), magnifiers(24.6%), and telemicroscope(7.9%) were low vision aids commonly prescribed for near vision, while hand-held telescope(23.8%) was the most popular for distance vision aids. High-power plus glasses were actually worn by 31 of 32 patients prescribed for them.
Aphakia ; Eyeglasses ; Female ; Glass ; Humans ; Medical Records ; Rehabilitation ; Retrospective Studies ; Vision, Low*

MR imaging was performed in 40 patients of aortic disease from March 1988 to February 1990. Transverse, coronal and oblique sagital views were obtained with ECG gating and even echo technique using 0.5 T and 2.0 T MR systems. In 12 patients of aortic aneurysm, the location, the size and the extent of aneurysm could be assessed in all cases. In the cases of six abdominal aortic aneurysm, the relation of aneurysm to renal arteries was evaluated. In 18 cases of aortic dissection, the extent of involvement as well as associated abnormalities was well evaluated in all cases. In the 8 cases of congenital aortic anomalies, the vascular anatomy was well demonstrated. However, the abnormalities of major branches could not be assessed with MR imaging especially in 2 cases of Takayasu's arteritis. With our experiences, MR imaging is regarded as a primary diagnostic modality for aortic disease and expected to be developed as the alternative measure to the angiography in the future.
Aneurysm ; Angiography ; Aorta ; Aortic Aneurysm ; Aortic Aneurysm, Abdominal ; Aortic Diseases* ; Electrocardiography ; Humans ; Magnetic Resonance Imaging* ; Renal Artery ; Takayasu Arteritis