Postoperative colonoscopy is an effective tool for management of colonic adenomas. Authors analyzed the pattern of colonic adenomas detected during follow-up colonoscopy after colorectal cancer surgery and evaluated the characteristics of adenornas, risk groups, and effective fo1low-up schedule. Study group were 222 patients and colonoscopy was performed 389 times. Patterns of adenornas were analyzed by variables as age, sex, preoperative serum CEA level, location of primary colorectal cancer, Borrmann type, Duke's stage, histologic differentiation, DNA ploidy, recurrence and histology. Metachronous adenomas were detected in 79 patients(35.6%) and both metachronous and syachronous adenomas were observed in 29 cases(13.1%). High risk variables for adenomas were male, old age and presence of synchronous adenoma. There were 2 patients with maligant change of adenomas. Yearly follow-up by complete colonoscopy over 3 years or more is recommended and follow-up interval should be shortened in the high risk groups.
Adenoma* ; Appointments and Schedules ; Colon ; Colonic Neoplasms ; Colonoscopy ; Colorectal Neoplasms* ; DNA ; Follow-Up Studies ; Humans ; Male ; Ploidies ; Recurrence

PURPOSE: We studied enhanced method to view the vessels in the brain using Magnetic Resonance Angiography (MRA). Noticing that Maximum Intensity Projection (MIP) image is often used to evaluate the arteries of the neck and brain, we propose a new method for view brain vessels to stereo image in 3D space with more superior and more correct compared with conventional method. MATERIALS AND METHODS: We use 3T Siemens Tim Trio MRI scanner with 4 channel head coil and get a 3D MRA brain data by fixing volunteers head and radiating Phase Contrast pulse sequence. MRA brain data is 3D rotated according to the view angle of each eyes. Optimal view angle (projection angle) is determined by the distance between eye and center of the data. Newly acquired MRA data are projected along with the projection line and display only the highest values. Each left and right view MIP image is integrated through anaglyph imaging method and optimal stereoscopic MIP image is acquired. RESULTS: Result image shows that proposed method let enable to view MIP image at any direction of MRA data that is impossible to the conventional method. Moreover, considering disparity and distance from viewer to center of MRA data at spherical coordinates, we can get more realistic stereo image. In conclusion, we can get optimal stereoscopic images according to the position that viewers want to see and distance between viewer and MRA data. CONCLUSION: Proposed method overcome problems of conventional method that shows only specific projected image (z-axis projection) and give optimal depth information by converting mono MIP image to stereoscopic image considering viewers position. And can display any view of MRA data at spherical coordinates. If the optimization algorithm and parallel processing is applied, it may give useful medical information for diagnosis and treatment planning in real-time.
Angiography ; Arteries ; Brain ; Eye ; Head ; Linear Energy Transfer ; Magnetic Resonance Angiography ; Neck

No abstract available.

No abstract available.
Epithelium* ; Humans* ; Insulin*

No abstract available.
Gram-Positive Cocci*

No abstract available.
Cystic Adenomatoid Malformation of Lung, Congenital* ; Lung*

No abstract available.
Polyesters* ; Urinary Incontinence*

The authors have experienced 9 cases of postgastrectomy efferent loop obstruction during the past 16 months' period and analyzed the clinical features, radiological findings, causes, and types of obstruction. The incidence of efferent loop obstruction was 1.3%(9/673). Among the 9 cases, eight patients were male and one patient was female. Median age was 60 years and more than half(5 out of 9 cases) of the patients were obese(defined by more than 110% of ideal body weight). None of the cases showed signs of strangulation, including persistent pain, fever, focal abdominal tenderness, and/or leukocytosis. Gastrointestinal anastomoses were done using a GIA stapler in 6 cases, and manually in 3 cases. The diagnoses were made on the basis of clinical symptoms and signs, further supported by radiologic contrast studies. All the patients were initially treated with conservative measures, including nasogastric drainage and fluid therapy for about 2 weeks in average. 7 cases underwent re-laparotomy using separate left subcostal incisions as conservative management had failed. Among the relaparotomy cases, adhesiolysis and side to side jejunojejunostomy were performed in 5 patients, Roux-en-Y gastrojejunostomy in 1 patient, and gastrojejunostomy revision in 1 patient. Causes of the obstruction in the seven re-opened cases were confirmed as postoperative adhesion. The authors have analyzed the pattern of obstruction and classified the patterns into 4 types. One of the remaining two patients underwent balloon dilatation successfully and the other was managed with prolonged nasogastric decompression. The average hospital stay was 32 days. Adequate omentectomy, gentle tissue handling during dissection, avoidance of ischemia along the suture line of anastomosis, and the use of biologically inert suture material would prevent this kind of postoperative adhesive obstruction.
Adhesives ; Decompression ; Diagnosis ; Dilatation ; Drainage ; Female ; Fever ; Fluid Therapy ; Gastric Bypass ; Humans ; Incidence ; Ischemia ; Length of Stay ; Leukocytosis ; Male ; Stomach Neoplasms ; Sutures

BACKGROUND: Experimental data indicate that low-flow reperfusion following prolonged cardiocirculatory arrest may aggravate early cerebral microcirculatory repefusion disorders. We investigated the influence of cerebral repefusion flow change to the ischemic histopathologic damage of brain tissue after incomplete forebrain ischemia in rats. MATERIALS AND METHOD: Anesthetized Sprague-Dawley rats were undergone ligation of both infernal carotid artery by microvascular clamp for 10 minutes. After release of the clamp, reperfusion was started with several different flow levels (0, 10, 20, 30, 50, and 100%) of infernal carotid artery comparing to pre-clamping phase using flowmeter. After 15minutes of reperfusion, rat brains were prepared by perfusion-fixation with 3% formaldehyde. Under light microscopic examination of Hematoxylin-Eosin stained tissue slide, histopathologic damage was examined at cortex, putamen, and hippocampus regions. Categorical hisotopathologic damage scores were derived in each regions by manual counts of ischemic neurons. RESULT: The histopathologic damage scores were 0, 10. 2+/-0.5, 7.6+/-1.5, 5.9+/-1.4, 5.0+/- 2.8, 3.5+/-0.7, and 1.0+/-0.0 in control, 0, 10, 20, 30, 50, and 100% reperfusion groups, respectively(p<0.05). CONCLUSION: Our insults showed significant increment of brain histopathologic damage scores along with decreasing amount of cerebral reperfusion know after incomplete forebrain ischemia. We believe restoration of repefusion flow to pre-ischemic level would be a critical component in attenuation of brain ischemic damage.
Animals ; Brain ; Carotid Arteries ; Flowmeters ; Formaldehyde ; Hippocampus ; Ischemia* ; Ligation ; Models, Animal* ; Neurons ; Prosencephalon* ; Putamen ; Rats* ; Rats, Sprague-Dawley ; Reperfusion*

Endpgenous bacterial endophthalmitis develops mainly in a extremely ill patient or a immunologically compromised patient. As reported earlier, early suspicion and careful diagnostic evaluation and early aggressive treatment are important to treat endophthalmitis and prevent poor visual acuity. The authors experienced a case of endogenous endophthalmitis developed from pneumonia in chronic alcoholics patient. The pathogen was proved to be a Staphylococcus aureus by the culture of specimen obtained from the aqueous. Systemic, topical, subconjunctival and intravitreal antibiotic therapy were done, but the patient's eye progressed to phthisis state.
Alcoholics* ; Endophthalmitis* ; Humans ; Pneumonia ; Staphylococcus aureus ; Visual Acuity