188Re (beta=22 MeV; gamma=155 keV; T1/2=16.9 hours) is an attractive therapeutic radioisotope which is produced from decay of reactor-produced tungsten-188 parent (T1/2=69 days). 188W has been produced from the double neutron capture reaction of 186W. 188Re can be easily obtained by elution of saline on alumina based 186W/188Re generator, which is commercially available. Complexes labelled with 188Re have been developed for the radiotherapy treatment of diseases because of the desirable nuclear properties of the radioisotope and it's chemical properties similar to those of technetium, a well established diagnostic agent.
Aluminum Oxide ; Humans ; Neutrons ; Parents ; Radiotherapy ; Technetium

No abstract available.
Eating* ; Liver* ; Pneumonia* ; Sharks*

No abstract available.
Arthrography* ; Wrist*

PURPOSE: The purpose of the study is to investigate the correlation between the symptoms and the incidence of anatomical variant without mucosal abnormality. MATERIALS AND METHODS: Out of 892 patients with CT performed for the evaluation of sinus disease symptoms between March 1991 and March 1993, we observed the anatomic variations in 82 symptomatic patients without mucosal abnormality(male:female=43:39, mean age 36. 4 years). The control group included 88 patients with facial bone CT performed for the evaluation of trauma during the same period while patients with recent paranasal sinusitis were excluded. (male:female=76:12, mean age 22. 4 years). The scouis were performed with 5-ram section thickness from posterior margin of sphenoid sinus to anterior margin of posterior ethmoid and then with 3 mm thickness from anterior margin of posterior ethmoid to anterior margin of frontal sinus. The artatomic variations included nasoseptal deviation, concha bullosa, Hailer cells, Agger nasi cells, etc. RESULTS: The anatomic variations were demonstrated in 71 our of 82 symptomatic patients(86. 5%), whereas they were seen 26 of 88 patients(29. 5%) in control group. CONCLUSION: Our data suggest that there is a possible causal relationship between anatomic variations and symptomas. Even though without accompaning mucosal abnormalities, anatomic variations could contribute simply to its symptomas. ^natomic variants may obstruct or narrow the airway, leading to turbulating air flow or interrupting ucociliary movement, and finally may produce a series os symptoms.
Facial Bones ; Frontal Sinus ; Humans ; Incidence ; Sinusitis ; Sphenoid Sinus

No abstract available.

STATEMENT OF PROBLEM: A number of studies about the nano-treated surfaces of implants have been conducting along with micro-treated surfaces of implants. PURPOSE: The purpose of this study was to get information for the clinical use of nano-treated surfaces compared with micro-treated surfaces by measuring removal torque and analyzing histological characteristics after the placement of various surface-treated implants on femurs of dogs. MATERIAL AND METHODS: Machined surface implants were used as a control group. 4 nano-treated surface implants and 3 micro-treated surface implants [resorbable blast media surface (RBM), sandblast and acid-etched surface (SAE), anodized RBM surface] were used as experimental groups. Removal torque values of implants were measured respectively and the histological analyses were conducted on both 4weeks and 8weeks after implant surgery. The surfaces of removed implants after measuring removal torque values were observed by scanning electron microscopy (SEM) at 8 weeks. RESULTS: 1. Removal torque values of the nano-treated groups were lower than those of micro-treated groups. 2. Removal torque values were similar in the anodized RBM surface groups. 3. On the histological views, there was much of bone formation at 8 weeks, but there was no difference between 4 and 8 weeks, and between the types of implant surfaces as well. CONCLUSION: It is suggested that implant topography is more effective in removal torque test than surface chemistry. To get better clinical result, further studies should be fulfilled on the combined effect of surface topography and chemistry for the implant surface treatments.
Animals ; Dogs ; Femur ; Microscopy, Electron, Scanning ; Osteogenesis ; Titanium ; Torque

Granulocytic sarcoma is an uncommon extramedullary localized tumor composed of granulocytic precursor cells. The majority of cases have been reported in association with acute myeloid leukemia(AML) especially in children, but infrequently may occur in patients with myeloproliferative disorders or myelodysplastic syndromes. Most common sites of involvement were bone, soft tissue, lymph nodes and skin, but gastrointestinal tract, testis, central nervous system are also involved rarely. We present an unusual case of granulocytic sarcoma of the intracranium and the retro-orbital soft tissue occurring in a patient with concurrent myelodysplastic syndrome, diagnosed by brain magnetic resonance images and ultrasound guided needle biopsy.
Biopsy, Needle ; Brain ; Central Nervous System ; Child ; Gastrointestinal Tract ; Granulocyte Precursor Cells ; Humans ; Lymph Nodes ; Myelodysplastic Syndromes* ; Myeloproliferative Disorders ; Sarcoma, Myeloid* ; Skin ; Testis ; Ultrasonography

BACKGROUND: The dipyridamole and dobutamine stress echocardiography have been studied as a non-invasive diagnostic test in coronary artery disease. Recently, some authors have extended the usefulness of these tests to predicting the prognosis of myocardial infarction patients. But as far as we know, there was no literature which tried boh tests to the same infarcted patients group. So, we performed both tests in the 23 infarcted patients to compare and evaluate both tests as predicting the prognosis in myocardial infarction. METHODS: Patients underwent (1) two-dimensional echocardiography under basal condition and after dipyridamole infusion for 4 minites at the dose of 0.14mg/kg/min, (2) another two dimensional echocardiography under basal and during dobutamine infusion at each dose of 5 to a maximum of 20microg/kg/min at 1 or 2 days after dipyridamole stress echocardiography, and (3) coronary and left ventricular angiography. Preinfusion and peak infusion images were analyzed independently by two different observers using Nova Micro Sonic soft were(DataVueII and ColorVue II analysis system). The segmental wall motions were scored as follows ; hyperkinetic : 1, normal : 2, hypokinetic : 3, akinetic : 4. THe test response was considered positive if abnormal wall motion and reduced myocardial thickening were observed during drug infusion at the vascular distributions except the akinetic infarcted segment identified during basal condition. The coronary angiography was analyzed by measuring the maximal luminal diameter stenosis with caliper and 50% or greater diameter narrowing was considered significant. The sensitivity and specificity were calculated by comparing echocardiographic prediction and angiographic findings. RESULTS: 1) Among 22 patients with sufficient image in dipyridamole stress echocardiography, 13 patients have myltivessel coronary disease without resting akinesia of non-infarcted segments. Only 5 patients showed positive findings in dipyridamole stress echocardiography(sensitivity, 38.4%). Among 9 patients who has single or minimal disease, 9 patients were negative finding(specificity, 100%). 2) Among 21 patients with sufficient image in dobutamine stress echocardiography, 12 patients have multivessel coronary disease without resting akinesia of non-infarcted segments. 7 patients showed positive finding in dobutamine stress echocardiography(sensitivity, 58.3%). Among 9 patients who has single or minimal disease, 8 patients showed negative finding(specificity, 88.8%). 3) In hemodynamic changes, dipyridamole stress echocardiography showed significant changes in heart rates and double products and dobutamine stress echocardiography showed significant changes in heart rates, systolic blood pressure and double products. 4) There was no significant side effect during both stress tests inacute and old myocardial infarction patients. CONCLUSION: 1) The dobutamine and dipyridamole stress echocardiography are safe and easy test for myocardial infarction patients. 2) The dobutamine stress echocardiography has higher sensitivity than dipyrdamole stress echocardiography for identifying multivessel coronary disease in myocardial infarction patients but the dose of both drugs were relatively small to get the adequate results. So the high dose of drugs must be tried in feature study.
Angiography ; Blood Pressure ; Constriction, Pathologic ; Coronary Angiography ; Coronary Artery Disease ; Coronary Disease ; Diagnostic Tests, Routine ; Dipyridamole* ; Dobutamine* ; Echocardiography ; Echocardiography, Stress* ; Exercise Test ; Heart Rate ; Hemodynamics ; Humans ; Myocardial Infarction* ; Phenobarbital ; Prognosis ; Sensitivity and Specificity

No abstract available.
Evoked Potentials, Auditory, Brain Stem*

Background: There is controversy over how to surgically treat symptomatic superior labrum anterior to posterior (SLAP) tears in middle-aged patients with concomitant rotator cuff tears. The aim of the study was to compare the clinical and imaging outcomes of SLAP repair versus biceps tenodesis (BT) each combined with arthroscopic rotator cuff repair (ARCR). Methods: We retrospectively reviewed 35 patients older than 45 years who underwent arthroscopic surgery to manage concomitant SLAP tears and rotator cuff tears. In addition to ARCR, 17 patients underwent SLAP repair, whereas 18 patients underwent BT.Shoulder range of motion (ROM), visual analog scale (VAS) for pain, American Shoulder and Elbow Surgeons (ASES) score, Constant score, and University of California at Los Angeles (UCLA) score were used for clinical assessment. The integrity of rotator cuff repair and change of superior labrum-biceps complex were evaluated by postoperative magnetic resonance imaging (MRI). Results: There was significant improvement in the pain VAS and all functional scores in both groups (p < 0.001) at a mean followup of 29.4 ± 11.4 months (range, 24–84 months) postoperatively. Shoulder ROM showed significant improvement postoperatively (p < 0.05). No significant difference in outcomes could be found between the 2 groups after surgery. The retear rate of rotator cuff repair on MRI was 11.8% in the SLAP repair group and 11.1% in the BT group. Conclusions In middle-aged patients with combined SLAP lesions and rotator cuff tears, both SLAP repair and BT can be safe adjuncts to ARCR.