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排序方式: 共有343条查询结果,搜索用时 359 毫秒
61.
62.
Ocular and orbital lesions: surface coil MR imaging 总被引:1,自引:0,他引:1
Bilaniuk LT; Schenck JF; Zimmerman RA; Hart HR Jr; Foster TH; Edelstein WA; Goldberg HI; Grossman RI 《Radiology》1985,156(3):669-674
Nine lesions, four ocular (three melanomas, one hemangioma) and five orbital (two perioptic meningiomas, one hemangioma, one pseudotumor, one mucocele), were evaluated by magnetic resonance surface coil imaging at 1.5 T. Small ocular lesions with 3.9-4.5-mm-elevation were demonstrated. The use of two different pulse sequences resulted in separation of melanoma from adjacent retinal detachment. Contrast obtained between orbital lesions and the adjacent normal structures was better than that demonstrated with high-resolution computed tomography. 相似文献
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M Ghanei Dr Assistant Professor Medicine P Adibi Deputy Manager M Movahedi Resident Doctor for Internal Medicine MA Khami Lecturer of Histology RL Ghasemi Vice Chancellor T Azarm Associate Professor Medicine B Zolfaghari Lecturer of Medical Education HR Jamshidi University Chancellor R Sadri Computer Consultant 《Public health》1997,111(3):153-156
Background: Iran like other middle east countries has a large number of major thalassaemics. Due to religious restrictions on abortion, the routine prevention of the birth of thalassaemic children by this means is not possible. The aim of this study is to describe an alternative means to prevent the birth of thalassaemic children.Methods: From January 1993 to January 1996, 100 000 people preparing for marriage were screened for the thalassaemia trait, using CBC and HbA2 level measurement. High risk couples were referred for further consultation regarding the disease and the means of its prevention. The proposed actions of the couples regarding thalassaemia prevention were evaluated immediately after consultation and then re-evaluated three months later. Result: After the project had been running for three years the average of high risk couple initially deciding not to marry was 90% and no new cases of thalassemia were detected in the children of the screened population.Conclusion: Where both members of the couple were trait-positive their preferred choice was not to marry, rather than to marry and use other or no methods of preventing a thalassemia affected child being born to them. Cultural and religious ideas can affect such decisions and in some Islamic countries the establishment and use of a genetic counselling centre can help prevent most of new thalassaemia cases. 相似文献
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66.
E. F. Hollinger J. A. Powelson R. S. Mangus M. M. Kazimi T. E. Taber M. L. Goble J. A. Fridell 《American journal of transplantation》2009,9(4):740-745
Early pancreas allograft failure most commonly results from thrombosis and requires immediate allograft pancreatectomy. Optimal timing for retransplantation remains undefined. Immediate retransplantation facilitates reuse of the same anatomic site before extensive adhesions have formed. Some studies suggest that early retransplantation is associated with a higher incidence of graft loss. This study is a retrospective review of immediate pancreas retransplants performed at a single center. All cases of pancreas allograft loss within 2 weeks were examined. Of 228 pancreas transplants, 12 grafts were lost within 2 weeks of surgery. Eleven of these underwent allograft pancreatectomy for thrombosis. One suffered anoxic brain injury and was not a retransplantation candidate, one was retransplanted at 3.5 months and nine patients underwent retransplantation 1–16 days following the original transplant. Of the nine early retransplants, one pancreas was lost to heparin-induced thrombocytopenia, one recipient died with function at 2.9 years and the other grafts continue to function at 76–1137 days (mean 572 days). One-year graft survival for early retransplantation was 89% compared to 91% for all pancreas transplants at our center. Immediate retransplantation following pancreatic graft thrombosis restores durable allograft function with outcomes comparable to first-time pancreas transplantation. 相似文献
67.
HR Chowdhury M Yunus K Zaman A Rahman SM Faruque AG Lescano RB Sack 《Acta paediatrica (Oslo, Norway : 1992)》2001,90(6):605-610
A controlled, randomized, double-blind study in Bangladeshi children (ages 4-36 mo) with acute diarrhoea was undertaken to determine whether bismuth subsalicylate (BSS) would prevent the development of persistent diarrhoea (PD) in young children. The children were randomized to two groups: 226 were given liquid oral BSS, (as Pepto-Bismol), 100 mg/kg/d for 5 d; 225 were given placebo of identical appearance. On admission to the study, the two groups were comparable both clinically and microbiologically. Rotavirus was found in 56% of all the children, and enterotoxigenic E. coli in 31% of a subsample studied. Children treated with BSS had less severe and less prolonged illness than those treated with placebo (p = 0.057). There was, however, no difference in the development of PD between the two groups (8% and 11%). Unexpectedly, patients treated with BSS gained significantly more weight (2.3%) than those treated with placebo (0.5%; p < 0.001) during the course of the study. No toxicity of BSS was detected. Conclusion: Treatment with BSS had a modest therapeutic effect on acute diarrhoea, as has been previously demonstrated, but with no suggestion of a therapeutic effect on the prevention of persistent diarrhoea in this group of patients. 相似文献
68.
Iris-Tatjana Kolassa Arlette Buchmann Romy Lauche Stephan Kolassa Ivailo Partchev Wolfgang HR Miltner Frauke Musial 《Behavioral and brain functions : BBF》2007,3(1):1-15
Background
A dominant view in numerical cognition is that numerical comparisons operate on a notation independent representation (Dehaene, 1992). Although previous human neurophysiological studies using scalp-recorded event-related potentials (ERPs) on the numerical distance effect have been interpreted as supporting this idea, differences in the electrophysiological correlates of the numerical distance effect in symbolic notations (e.g. Arabic numerals) and non-symbolic notations (e.g. a set of visually presented dots of a certain number) are not entirely consistent with this view. 相似文献69.
70.
Ahmed Abdulrahman K. Sayad Reem Mahmoud Islam A. EL-Monem Aya M. Abd Badry Salma H. Ibrahim Islam H. Hafez Mahmoud HR El-Mokhtar Mohamed A. Sayed Ibrahim M. 《Journal of neurovirology》2022,28(2):189-200
Journal of NeuroVirology - COVID-19 pandemic spreads worldwide, with more than 100 million positive cases and more than 2 million deaths. From the beginning of the COVID-19 pandemic, several... 相似文献