BACKGROUND AND PURPOSE: Radioopaque lesions are commonly seen in patients who received thoracic radiotherapy for various kinds of thoracic neoplasm, But therir exact diagnos are sometimes uncertain. PATIENTS AND METHODS: We examined simple chest radiograph and computed tomogram(CT) of 69 patients who received thoracic radiotherapy for lung cancer and were follow up at least 6 months in Yeungnam University Medical Center. RESULTS: Of the 69 patients. thirty-eight patients showed radioopaque lesions in their chest radiographs except radiation fibrosis; radiation pneumonitis was witnessed in 24 patients. infectious pneumonia in 8 patients, and recurrence in 6 patients. In radiateionpneumonitis patients, the pneumonitis occurred usually between 50 to 130 days after receiving radiation therapy, and interval between pneumonitis and fibrosis is 21 to 104 days. Simple chest radiographs of radiation pneumonitis(24 patients) represented ground glass opacities or consolidation in 4 cases(type I, 17%), reticular of reticulonodular opacities in 10 cases(type II, 42%), irregular patichy consolidations in 2 cases( type III, 8%), and consolidation with fibrosis in 8 cases(type IV, 33%), CT represent ground glass opacities or consolidation in 5 cases(type I, 29%), irregular nodular opacities in 3 cases(type II, 19%), irregular opacity beyond radiation fields in 3 cases(type III, 18%), and consolidation with fibrosis in 6 cased(typeIV, 35%). The CT of four patients who represented type II on simple chest radiographs reveal type I and III, and CT of two patients with clinical symptoms who had no abnormal finding on simple radiograph revealed type I. CONCLUSIONS: In conclusion, computed tomogram is superior to the simple radiograph when trying to understand the pathologic process of radiation pneumonitis and provide confidence in the diagnosis of radiation induced lung disease.
Academic Medical Centers ; Diagnosis ; Fibrosis ; Follow-Up Studies ; Glass ; Humans ; Lung Diseases* ; Lung Neoplasms ; Lung* ; Pneumonia ; Radiation Pneumonitis ; Radiography, Thoracic ; Radiotherapy ; Recurrence ; Thoracic Neoplasms

No abstract available.
Axilla*

No abstract available.
Axilla*

The traditional light microscopy has limitations for precise growth assays of malaria parasites in culture or for assessment of new compounds for antimalarial activity; the speed and high reproducibility of flow cytometry can overcome these limitations. A flow cytometric method using PicoGreen, a DNA-binding fluorochrome, was developed with optimal precision suitable for performing growth assays of low-parasitemia field isolates. In addition, intra- and inter-person reproducibility of the flow cytometric and the microscopic method were compared in order to quantitatively demonstrate the improved precision. RNase treatment contributed to the precision of the flow cytometric measurements by enhancing the signal-to-noise ratios. Coefficients of variation of the method were smaller than 10% for 0.1% or higher parasitemia samples. The intra- and inter-person coefficients of variation of the flow cytometric method were three to six times smaller than those of the microscopic method. The flow cytometric method developed in this study yielded substantially more precise results than the microscopic method, allowing determination of parasitemia levels of 0.1% or higher, with coefficients of variation smaller than 10%. Thus, the PicoGreen method could be a reliable high sensitivity assay for analysis of low parasitemia samples and might be applied to a high throughput system testing antimalarial drug activity.
*Flow Cytometry ; Fluorescent Dyes/chemistry ; Humans ; *Microscopy ; Organic Chemicals/chemistry ; Parasitemia/*diagnosis ; Plasmodium falciparum/*isolation & purification ; Reproducibility of Results ; Ribonucleases/metabolism ; Signal-To-Noise Ratio

Various remedies have been developed for broad damage to soft tissue in limbs by traffic accidents and mechanical mishaps that have greatly increased in modern society. If the damaged part is trivial, it may be generally treated with local flap or skin graft. However, this has been limited by the ability to choose the flap available depending on the condition of the wounded part, so that, if it is rather large or severly inflamed, or if it occurred with a bone-fracture, it is inevitable to practice the free flap. In the past, the focus was on whether the free flap would survive or not. However, the function of donor the and recipient, as well as the problem of aesthetic appearance, gas become a matter of increqsing interest and concern as the survival rate of the flap has greatly improved due to the development of precise operations. In thes study, therefore, some complications were analyzed which may develop in a donor by a variety of free flaps. Preoperative plans, as well as intraoperative and postoperati-ve treatment were also studied to minimize the cause of complications. To investigate these questions, we undertook a clinical analysis of 91 followed patients from 1990 to 1997. There were 68 male and 23 female patients ranging in age from 6 to 67 years, with an average of 34.7 years. The length of follow-up ranged from 8 months to 6 years. The results of this study were as follows: Sufficient plans must be made on the donor before operation, single textures like muscle or fascia should be used if possible, and incision should be arranged along Langer`s line. Some measures to reduce wound tension should be pursued, and plans must be made to immobilize the site for an ample period after the operation. Some precautious should also be considered during the operation, such as avoiding traction surrounding nerves and vessels, preserving paratenon, practicing osteotomy with great care and properly stopping any bleeding. In addition, formation of a hematoma or seroma should be preventcd and the donor must be sutur-ed as soon as possible to reduce infection. With the application of the basic operational principles on the treatment of donors, the complications which might be caused by each free flap can be reduced, and furthermore, be protected against.
Accidents, Traffic ; Extremities ; Fascia ; Female ; Follow-Up Studies ; Free Tissue Flaps* ; Hematoma ; Hemorrhage ; Humans ; Male ; Osteotomy ; Seroma ; Skin ; Survival Rate ; Tissue Donors* ; Traction ; Transplants ; Wounds and Injuries

Gastric diverticula have been considered to be rave when compored with diverticula in other sites of the gastrointestinal tract. It's prevalence is 0.043% of routine gastrointestinal radiologic examination by Palmer's extensive review. Gastric diverticula almost always occur as a single lesion and approximately 75% of gastric diverticula occur in the juxtacardiac region, high on the posterior wall of the stomach, about 2 cm below the esophagogastric junction and 3 cm from the lesser curvature. We report a case of 75-year-old male patient with multiple gastric diverlicula which was first encountered by endoscopy and confirmed by upper gastrointestinal radiologic examination.
Aged ; Diverticulum ; Diverticulum, Stomach* ; Endoscopy ; Esophagogastric Junction ; Gastrointestinal Tract ; Humans ; Male ; Prevalence ; Stomach

In this study, high frequency oscillatory ventilator was designed and constructed. Using designed by phase-lock loop system, in order to accurately and easily treat both the outlet volume and rpm. A system has been designed and is being evaluated using CD4046A PLL IC. We use this PLL IC for the purpose of motor controls. The device consists of PLL system, pumping mechanism, piston, cylinder, and special crank shaft are required. This system characteristics were as follows: 1) Frequency: 20-1800 rpm 2) Outlet air volume: 1-50 cc
Ventilators, Mechanical*

Non-steroidal anti-inflammatory drugs (NSAIDs) are well known to be associated with serious upper gastrointestinal complications, such as peptic ulcer, bleeding, perforation, and obstruction. Recently, attention has been mainly focused on the small bowel injuries caused by NSAIDs, and new endoscopic techniques such as capsule endoscopy and double balloon endoscopy can help in detecting such injuries. This article reviewed the epidemiology, pathogenesis, clinical manifestations, diagnosis, and treatment of small bowel injuries caused by NSAIDs. Small bowel injures by NSAIDs might occur with a similar frequency and extent as those observed in the upper gastrointestinal tract. The pathogenesis of NSAID-induced enteropathy is complex and not clearly understood. The various lesions observed in the small bowel, including petechiae, reddened folds, loss of villi, erosions, and ulcers can be detected by capsule endoscopy. A drug that could prevent or treat NSAID-induced enteropathy has not yet been developed. Therefore, further investigations should be performed to elucidate the pathogenesis of such enteropathy and develop suitable preventive and treatment strategies.
Anti-Inflammatory Agents, Non-Steroidal ; Capsule Endoscopy ; Diagnosis ; Endoscopy ; Epidemiology ; Hemorrhage ; Peptic Ulcer ; Purpura ; Ulcer ; Upper Gastrointestinal Tract

No abstract available.
DNA* ; Ploidies* ; Stomach Neoplasms*

BACKGROUND/AIMS: Guanine nucleotide binding protein (G-protein) beta polypeptide 3 (GNB3) C825T polymorphism alters intracellular signal transduction, which may lead to motor or sensory abnormalities of the gastrointestinal tract. The aim of the present study was to evaluate the association of the GNB3 C825T polymorphism with susceptibility to overlap syndrome of functional dyspepsia (FD) and irritable bowel syndrome (IBS) in a Korean population. METHODS: One hundred sixty-seven patients with FD alone, 60 patients with IBS alone, 85 patients with the overlap of FD and IBS, and 434 asymptomatic healthy subjects participated in the study. Genotyping for GNB3 C825T polymorphism was performed using their blood samples. RESULTS: No association of GNB3 genotypes in patients with FD alone, IBS alone or overlap phenotype, when compared to genotypes in controls, was detected. The frequency of CT and TT genotypes relative to the CC genotype for the phenotypes of FD alone, IBS alone and the coexistence of FD and IBS did not significantly differ. Comparison of the TT genotype with the CC/CT genotype showed no significant association for each phenotype group. CONCLUSIONS: There is no apparent association of the GNB3 C825T polymorphism with the susceptibility to FD, IBS or the overlap of FD and IBS. Larger-scale studies and further investigation on other candidate genes are required.
Carrier Proteins ; Dyspepsia ; Gastrointestinal Tract ; Genotype ; GTP-Binding Proteins ; Guanine ; Heterotrimeric GTP-Binding Proteins ; Humans ; Irritable Bowel Syndrome ; Phenotype ; Signal Transduction