No abstract available.
Hand*

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

No Abstract Available.
Adult* ; Capsulorhexis* ; Cataract* ; Follow-Up Studies* ; Humans

No abstract available.
Scalp* ; Superficial Back Muscles*

We investigated the acute effect of recombinant human growth hormone (rhGH) on the activity of polymorphoneuclear leukocyte (PMN). We selected 6 patients of growth hormone deficient and 5 normal control children. In both groups, 0.15 IU/kg of rhGH was administered subcutaneously. The plasma growth hormone level were measured by radioimmunoassay on 0, 2, and 6 hours after administration of rhGH. To determined PMN activity, peripheral blood PMN were separated by discontinuous density-gradient centrifigation. Isolated PMN were stimulated hy fMLP and PMA and then respiratory burst activity of PMN was determined. The average growth hormone level of growth horrnone deficient and normal group were increased to the level of 41.6+/-23.7 and 96.3+/-46.5 ng/ml respectively, 2 hours after rhGH injection and decreased to the level of 18.5+/-10.6 and 42.2+/-5.5 ng/ml respectively, 6 hours after rhGH injection. Superoxide (O ) production by PMN which was stimulated by PMA was increased from 9.98+/-5.18 to 38.67+/-19.19 (x 10'cpm) after 6 hours of rhGH injection in control group children. It seemed that administration of the rhGH do not made a any effects acutely on PMN activity in growth hormone deficient group. But in a normal control children, extemal administration of rhGH acutely increased activity of PMN.
Child* ; Growth Hormone ; Human Growth Hormone* ; Humans* ; Leukocytes ; Neutrophils* ; Plasma ; Radioimmunoassay ; Respiratory Burst ; Superoxides

No abstract available.
Cerebrospinal Fluid* ; Spinal Fractures*

No abstract available.
Humans ; Infant, Newborn* ; Mothers* ; Thrombocytopenia

PURPOSE: The purpose of this study was to evaluate and compare the scintigraphic findings and diagnostic accuracy of double-phase Tc-99m sestamibi scan in primary and secondary hyperparathyroidism (HPT). MATERIALS AND METHODS: We retrospectively reviewed 16 cases of primary (18 lesions) and 11 cases of secondary HPT (44 lesions) who underwent Tc-99m-sestamibi scan before the surgical intervention. Scan was performed using LEM camera (Siemens, Germany) after the injection of 740MBq of Tc-99m sestamibi. Routine image consisted of baseline and 3-hour delayed images and each image was obtained using both parallel and pine hole collimator. The study population was 27 patients (male/female=5/22, age: 49.1+/-10.8). RESULTS: Eighteen lesions of primary HPT consisted of 13 adenomas and 5 hyperplasias, while all lesions of secondary HPT were hyperplasias. Among the case of primary HPT, we could detect all the lesions of 13 adenomas but only 2 lesions of 5 hyperplasias (40%) could be detected by double phase scintigraphy. Three cases of primary lesion showed decreased uptake in delayed images compared with baseline. The sensitivity, specificity, positive predictive value and accuracy of primary and secondary HPT were 58.8% (10/17), 83.3% (10/12), 83.3% (10/12), 75.9% (22/29), and 37.5% (15/40), 50% (2/4), 88.2% (15/17), 38.6% (17/44), respectively. Overall sensitivity, specificity, positive predictive value and accuracy were 43.9% (25/57), 75% (12/16), 86.2% (25/29), and 53.4% (39/73). There were no statistical difference between the weight of primary and secondary HPT lesion (p>0.05). CONCLUSION: Tc-99m sestamibi scan is fairly good modality to detect parathyroid lesion in patient with primary HPT before the surgical intervention. However, since some of cases may reveal decreased uptake in delayed image, a careful attention to the findings of baseline images may be helpful. Still the low accuracy of sestamibi scan in diagnosis of secondary HPT prohibits routine use of it for this disease.
Adenoma ; Diagnosis ; Humans ; Hyperparathyroidism, Primary ; Hyperparathyroidism, Secondary* ; Hyperplasia ; Parathyroid Glands ; Radionuclide Imaging* ; Retrospective Studies ; Sensitivity and Specificity

OBJECTIVES: Previous studies in patients with Tourette's disorder suggested presynaptic dopaminergic dysfunction, demonstrating increased dopamine densities. In present study, we investigated dopamine transporter densities using I-123N-(3-iodopropen-2-yl)-2beta-carbomethoxy-3beta-(4-chlorophenyl)tropane(I-123-IPT)-SPECT in drug-naive children with Tourette's disorder and postulated that dopamine transporter density reflected dopamine concentrations. METHODS: Eight drug-naive children with Tourette's disorder and six normal children were included in the with the brain SPECT 2 hours after an intravenous administration of I-123-IPT. Obtained SPECT data were reconstructed for the assessment of specific/nonspecific dopamine transporter binding ratio of basal ganglia and were evaluated both quantitatively and qualitatively. We investigated correlation between total tic severity of children with Tourette's disorder assessed with YGTSS and specific/nonspecific binding ratio of basal ganglia. RESULTS: Drug-naive children with Tourette's disorder had a significantly greater increase of speciffic/nonspecific dopamine transporter binding ratio of left basal ganglia than normal children. However, no significant differences in specific/nonspecific dopamine transporter binding ratio of right basal ganglia were found between children with Tourette's disorder and normal children. Also, we found no significant correlation between total tic severity of children with Tourette's disorder and specific/ nonspecific binding ratio of basal ganglia. CONCLUSION: These findings support the hypothesis of dopamine dysregulation in presynaptic dopamine function of the basal ganglia in the pathophysiology of Tourette's disorder.
Administration, Intravenous ; Basal Ganglia* ; Brain ; Child* ; Dopamine Plasma Membrane Transport Proteins* ; Dopamine* ; Humans ; Tics ; Tomography, Emission-Computed, Single-Photon* ; Tourette Syndrome*

No abstract available.