No abstract available.
Classification* ; Humans ; Stomach Neoplasms* ; Survival Rate*

The CT findings of the acute cerebral infarction are well known. However the CT findings of early stroke within 24 hours of the onset have not been sufficiently reported. The purpose of this study is to evaluate early acute cerebral infarction on CT within 24 hours after ictus. The early and accurate CT diagnosis could lead to the appropriate therapy and improved outcome of the patients. Authors retrospectively analyzed 16 patients with early acute cerebral infarction. Acute cerebral infarction was confirmed by follow-up CT in 11 patients, SPECT in 4 patients, and MRI in 1 patient. The CT findings of early acute cerebral infarction include effacement of cortical sulci or cistern (n=16, 100%), hyperattenuation of MCA (n=3), obscuration of lentiform nucleus (n=6), loss of insular ribbon (n=6) and subtle low density in hemisphere (n=5). The most frequent findings was effacement of cortical sulci in our study, and it was though to be the most important sign of early acute cerebral infarction.
Cerebral Infarction* ; Corpus Striatum ; Diagnosis ; Follow-Up Studies ; Humans ; Magnetic Resonance Imaging ; Retrospective Studies ; Stroke ; Tomography, Emission-Computed, Single-Photon

Carbon monoxide is colorless, oolorless, tasteless and non-irritating gas produced by the incomplete combustion of carbonaceous rnaterial. It combines with hemoglobin and displaces oxygen because the affinity of hemoglobin for carbon monoxide is two hundred times greater than oxygen. Symptoma and signs of carbon monoxide poisoning include headache, nausea, vomiting, dizziness, collapse, unconsciousness, blindness, convulsion, coma and skin lesions. Recently we have observed seven patients with carbon monoxide poisoning who expressed cutaneous syrnptoms. In this work we investigated the pathogenesis of cutaneous manifestations of carbon monoxide poisoning through clinical, histologic and electronmicroscopic study. The results are summarized as follows: 1. Mental states of the patients were comatose in two, Semicomatcse in two, stuporous in two, and drowsy in one patient. In routine laboratory tests, we observed elevated blood sugar in six, elevated sorum creatinine phosphokinase in four and abnormal findings in urinalysis in all patients. 2. Cutaneous lesions were vesicobullae, plaque or swelling, erythema, gangrene and 'ulceration in order of frequency and located in the dependent areas in six caies. 3. Histopathologically, the sites of the bullae were subepidermal in four cases and intraepidermal in. one case and there was one case with ulceration. 4. In electronmicroscopic findings, secretory and ductal cells showed degenerative
Blindness ; Blood Glucose ; Carbon Monoxide Poisoning* ; Carbon Monoxide* ; Carbon* ; Coma ; Creatinine ; Dizziness ; Erythema ; Gangrene ; Headache ; Humans ; Nausea ; Oxygen ; Seizures ; Skin ; Stupor ; Ulcer ; Unconsciousness ; Urinalysis ; Vomiting

A new balloon dissector, a modification of a Foley catheter, was devised and it can be used either as a dissector or a tissue expander. Since most operating time was spent in balloon manipulation (inflation/deflation), the duct for saline injection was made to be wider than the Foley catheter. As a result, the balloon could be inflated faster than before. In order to reduce the scar at the donor site, harvest of the sural nerve using endoscopic technique is currently applied, but utilization of this method is technically difficult and requires a long operating time. For these reasons, new our method of using a balloon dissector was devised. The balloon dissector can also be used for immediate intraoperative tissue expansion for the reconstruction of small skin defects without distortion. We have found that the advantages of using the new balloon dissector include a reduction in operating time, preservation of the perforating vessels, and primary closure with less tension. In addition, this simple and inexpensive instrument is cost-beneficial to patients.
Catheters ; Cicatrix ; Humans ; Skin ; Sural Nerve ; Tissue Donors ; Tissue Expansion ; Tissue Expansion Devices

Animals ; Body Weight ; Fluorouracil ; Hair ; Rats ; Rats, Sprague-Dawley

We measured fasting Serum Angiotensin-Converting Enzyme (SACE) in 100 healthy controls and 75 coal worker's pneumoconiosis (CWP) patients by a commercial kits (ACEcolor®, Fujirio Inc., Japan) and evaluated this manual method. The linear range extends to an activity of 80U/L. Precision on a commercial control serum (ACE control-N®, Sigma Co.) with a mean value of 9.47U/L yielded a within-run and between-run CVs are 5.6% (N=15) and 6.9% (N=14) respectively. Save in 75 CWP was 20.3±5.7U/L (mean±s.d.); higher than in healthy controls (13.4±3.9U/L, P<0.01). No correlation was found between SACE, sex, and age. The results suggest that the measurement for SACE and follow-up SACE in coal workers may be a useful diagnostic tools for CWP.
Anthracosis* ; Coal* ; Fasting ; Follow-Up Studies ; Humans ; Methods

We evaluated the effect of retreatment for under- of overcorrection after laser in situ keratomileusis(LASIK). We performed LASIK enhancement after lifting flap(8 eyes) and transepithelial PRK(1 eye) for the 9 eyes of undercorrection and 1 eye of hyperopic correction after primary LASIK procedures were performed from October 1996 through May 1997. The average preoperative refractive error was -12.88D and preretreatment refractive error was -3.53D in spherical equivalent. The average period from primary LASIK to retreatment was 85.7 days and we evaluated the stability, predictability, efficacy, safety, and complications after 6 months. At 6 months postretreatment, the average refractive error was -0.31D and 8 eyes obtained a refraction within +/-1.0D of emmetropia. Uncorrectedvisual acuity(UCVA) was improved from 0.24 to 0.71. There was one eye with grade III corneal haze and decentration after transepithelial PRK on corneal flap. And it had 1 line loss of best corrected visual acuity(BCVA) compared with preretreatment BCVA. The final average refractive error of the 7 eyes which underwent retreatment after 1 month was closer to emmetropia than that of the other 3 eyes which underwent retreatment within 1 month, but there was no statistically significant difference(p>0.05). In conclusion, LASIK tetreatment may be considered for the correction of under- and overcorrection after LASIK.
Emmetropia ; Keratomileusis, Laser In Situ* ; Lifting ; Refractive Errors ; Retreatment*

Attention has been paid to the thiocarbanilide derivative and the authors synthesized some new compounds of thiocarbanilides for experimental studies on tuberculosis and leprosy. The series of newly synthesized chemical compounds of thiocarbanilides were studied for comparision with the already known antimycobacterial agents; INH, PAS, Streptomycin and D. D. S. The strains of Mycobacterium tubercubsis (H37 Rv, Ravenel, and B. C. G.) and Mycobacterium phlei were used for the in vitro experiments. In the in vivo experiments, the strain of Mycobacterium tuberculosis var. bovis (Ravenel) was employed. The strain of Mycobacterium leprae murium (Hawaiian strain) was used for the murine leprosy experiments. The experimental animals for the in vivo tests were white mice (CFW strain) and these were extensively employed in tuberculosis and leprosy as well. Sixteen cases of Various types of human leprosy, were treated with one of the newly synthesized thiocarbanilides (L-4). Among the newly synthesized chemical compounds of thiocarbanilides studied for their antituberculous and antimurine leprosy activity in vitro and in vivo experiments, two compounds were shown to be suppressive agents for those infections without significant toxicity. These two compounds were named tentatively as L-1 and L-4. 1) LD50 of L-1 was 1,054 mg/kg and that of L-4 was 1,028 mg/kg, while the LD50 of INH was 650 mg/kg and PAS was 4,000mg/kg orally in the experimental animals. 2) L-1 and L-4 showed remarkable suppressive activity in vitro using solid media with 100r/ml. concentration. These data were parallel to 1r/ml. of INH and 50r/ml. of PAS. The inferiority of L-1 and L-4 to INH and PAS in vitro studies might have been due to the water insolubility of these compounds while INH and PAS were readily soluble in water. 3) In vivo experiments with L-1 showed a much-more superior antituberculous effect than was found with INH and PAS. 4) A method of grading the bacterial count in a homogenized tissue suspension of visceral organs (lungs, liver, spleen and kidneys) using the simple technique of the Gaffky scale was accurate and time saving technique in screening the results of the chemotherapeutic agents in tuberculosis. 5) Among the newly synthesized compounds L-4 showed the most remarkable suppressive effect on murine leprosy. The suppressive results were similar to those of INH. 6) The method of measuring the size and the weight of leproma at the inoculated site was simple and is an adequate screening test for chemotherapeutic effect in murine leprosy. 7) In the trials with human leprosy 16 cases of various types, using L-4, the effectiveness in clinical as well as in bacteriological improvement was remarkable. a) After L-4 treatment decrease in bactriologica1 indices and remarkable clinical improvement after a relative1y short period of treatment were observed. b) L-4, up to the maximum daily dose of 500 mg, can be safely administered orally to the patients without any significant side reactions. c) L-4 could be used with remarkable clinical improvement for the patients in lepra reactions.
Adult ; Animals ; Comparative Study ; Erythema Nodosum/drug therapy ; Female ; Human ; Leprosy/*drug therapy ; Male ; Mice ; Thiourea/*therapeutic use

With the widespread dissemination of picture archiving and communication systems (PACSs) in hospitals, the amount of imaging data is rapidly increasing. Effective image retrieval systems are required to manage these complex and large image databases. The authors reviewed the past development and the present state of medical image retrieval systems including text-based and content-based systems. In order to provide a more effective image retrieval service, the intelligent content-based retrieval systems combined with semantic systems are required.
Radiology Information Systems ; Semantics

No abstract available.