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Anthropomorphic radiologic phantoms 总被引:1,自引:0,他引:1
A technique is being developed for the design and fabrication of anthropomorphic phantoms for diagnostic x-ray imaging. Anatomic information extracted from actual patient radiographs is incorporated into the phantoms using computer image processing and computer-assisted machining methods. In this paper, the technique is described as applied to a breast phantom, and preliminary images that closely mimic human anatomy on radiographs are shown. 相似文献
153.
Califf RM 《岭南心血管病杂志》1999,5(2)
标题 Flolan国际随机存活试验(FIRST);最后的结果作者 CaliffRM,etal.JAmCollCardiol,1996,27:141A(英文) 研究疾病:末期心力衰竭。目的:评估epoprostenol(前列环素)对末期心衰患者之病死率和发病率的影响。 设计:随机对照式。病人资料:471例(预定875例),平均年龄为(65±10)岁,左心室射血分数<25%,充血性心衰,NYHAⅢ或Ⅳ级,肺毛细血管楔压>15mmHg,心功能指数<2-5L/min·m2。随访:12个月;6个月评估… 相似文献
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J Calderón-Amador A Flores-Langarica A Silva-Sánchez L Donis-Maturano J Granados E Vega-Memije RM Lacy-Niebla T Hojyo-Tomoka L Dominguez-Soto L Flores-Romo 《Journal of the European Academy of Dermatology and Venereology》2009,23(4):438-440
Background Actinic Prurigo (AP) is a chronic pruritic dermatosis of unknown cause affecting sun exposed skin in defined ethnic groups with characteristic MHC alleles. However, the cutaneous dendritic cells have not been assessed.
Objective To assess in situ the epidermal Langerhans Cell (LC) status in Actinic Prurigo.
Study design Fresh skin samples from three AP patients were used to evaluate in situ the epidermal LC, comparing lesional and non-lesional sites in each subject.
Setting AP patients attending the Dermatology Department at the Hospital M. Gea-Gonzalez in Mexico city.
Methods Lesional and non-lesional skin samples were taken from each subject to prepare both epidermal sheets and conventional tissue sections. Three markers restricted to LC in epidermis (CD1a, ATPase, MHC-II) were used to quantify the LC per area in epidermal sheets.
Results Compared to non-lesional skin from the same subject, a significant reduction in the number of LC per area of epidermis was found in lesional skin; with any of the three markers evaluated.
Conclusion The frequency of epidermal LC decreases importantly in lesional skin from AP patients. 相似文献
Objective To assess in situ the epidermal Langerhans Cell (LC) status in Actinic Prurigo.
Study design Fresh skin samples from three AP patients were used to evaluate in situ the epidermal LC, comparing lesional and non-lesional sites in each subject.
Setting AP patients attending the Dermatology Department at the Hospital M. Gea-Gonzalez in Mexico city.
Methods Lesional and non-lesional skin samples were taken from each subject to prepare both epidermal sheets and conventional tissue sections. Three markers restricted to LC in epidermis (CD1a, ATPase, MHC-II) were used to quantify the LC per area in epidermal sheets.
Results Compared to non-lesional skin from the same subject, a significant reduction in the number of LC per area of epidermis was found in lesional skin; with any of the three markers evaluated.
Conclusion The frequency of epidermal LC decreases importantly in lesional skin from AP patients. 相似文献
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对人流感病毒A/Udorn/72(H_3N_2)株与禽类流感病毒A/Mallard/NY/78/(H_2N_2)重组后的重组株分析表明,仅含禽类病毒的核蛋白(NP)或膜蛋白(M)的RNA片段的重组株,在松鼠猴的呼吸道繁殖是受限制的。另外。仅有禽类的RNAl和NS基因的重组株(Clone 12)在松鼠猴的气管内的繁殖也明显受限制,而只具有其中一个基因的Clone 9, Clone 2, 则限制就不明显。由此表明,禽类流感病毒的NP和M基因在宿主范围的繁殖限制中起主要作用,而RNAI和SN基因的结合,同样起着繁殖受限制作用。 相似文献
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Gerald F. Williams RN RM Crit Care Cert BAppSc Grad Cert PSM MHA CN FRCNA Director of Nursing Services Fay J. Hatch RN RM RMHN Crit Care Cert BN Clinical Nurse Consultant Michael C. Bradley RN RMDN Crit Care Cert BN Registered Nurse 《Australian critical care》1997,10(4):113-118
Methanol intoxication, a rare and potentially lethal form of poisoning, usually results from ingestion and occasionally inhalation of methanol. Initial symptoms of blurred vision, elongated anion gap and metabolic acidosis are typically delayed and may not at first be recognised as methanol-related complaints. Once diagnosed, treatment must be prompt and definitive. As well as general supportive care, ethanol infusion, dialysis and alkalinization form the mainstays of treatment.
The cases described in this paper are compared to previous reports from other countries worldwide and contrast the variance in outcome often seen in methanol poisoning. The paper describes two tragic deaths and two lucky survivors, all of whom had consumed a cocktail of methanol and other alcoholic beverages at the same party.
The ICU nurse's role in managing the methanol-intoxicated patient relies on that person's sound knowledge of the unusual biochemical reactions occurring in the body and the need to institute definitive and supportive measures to help both patient and family recover. 相似文献