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目的探讨肺动脉DSA影像的图像质量控制方法,总结质量控制措施,提高影像质量。方法通过对88例肺动脉DSA影像进行主观评价分析,并进行统计,确定影响肺动脉DSA图像质量的因素。结果肺动脉DSA图像质量受多种因素影响,其图像优质率相对较低,这与患者的屏气动作与方式、摄影的滤过方式、图像采集时机和频率、导管头端位置及对比剂的浓度和速率总量等密切相关。结论要获得良好的肺动脉DSA影像,应从多方面综合考虑质量控制措施。  相似文献
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目的比较牙列末端游离缺损的患者对卡环可摘局部义齿和冠外附着体义齿两种修复方式的主观评价。方法选择20例下颌牙列末端游离缺损的患者,每个患者分别在卡环可摘局部义齿和附着体义齿修复后,通过问卷调查,比较两种修复方式的修复效果。结果在咀嚼功能、固位稳定和美观方面,附着体义齿明显好于传统可摘局部义齿,在发音和舒适方面二者差异无统计学意义,在取戴方面传统卡环可摘局部义齿明显优于精密附着体义齿。结论对于牙列未端游离缺损的患者,与传统可摘局部义齿相比,冠外附着体义齿修复能更好地满足患者需求,提供良好的修复效果。  相似文献
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在介绍医院学科综合评价的内容与意义的基础上,对国内外医院学科综合评价研究的现状、医院学科综合评价研究的一般步骤、医院学科综合评价的应用等进行了综述。指出:科学构建学科评价指标体系是学科评价的关键,规范收集学科评价数据是学科评价的基础,评价实施中要合理选择学科评价组织形式,有效利用学科评价结果。同时对医院学科综合评价的前景进行了展望。  相似文献
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De Qi refers to a series of sensations experienced when acupuncture is performed at acupoints. De Qi comprises needling sensations felt by the patient, and the sensations perceived by the acupuncturist. Classical Traditional Chinese Medicine theory states that De Qi is closely related to curative effect. In modern studies, the main index that researchers have used to evaluate De Qi was the needling sensation reported by the patient. Between 1st Aug and 31st Oct 2014, we conducted an electronic database search of all fields in Chinese and English to select literature assessing acupuncture needle sensations. We then reviewed the methods used within these studies to evaluate De Qi. The methods included simple evaluation, and the use of a De Qi scale/questionnaire. The simple evaluation, a qualitative evaluation, was judged by typical sensations felt by the patient after needling at acupoints, such as soreness, numbness, fullness, and heaviness. This method was easy and practicable, and had been adopted widely by Chinese researchers. In contrast, the De Qi scale/questionnaire, a quantitative evaluation, had multiple compiling methods available for evaluating the intensity of De Qi. The standardization and objectification of the De Qi scale/questionnaire effectively improved the quality of studies on De Qi, thereby these scales/questionnaires have been acknowledged and applied by most researchers. The present review analyzed and compared the scales/questionnaires used to evaluate De Qi; furthermore, we provided suggestions for the development and improvement of these questionnaires through integration with classical De Qi theory.  相似文献
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