共查询到20条相似文献,搜索用时 140 毫秒
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外科手术和治疗应用中激光能量的光纤传输为医学界提供了观察和处理人体组织的一个新方法。Manni探索了这种可能性,并提出该领域面临的技术难题。激光能量的光纤传输已极大地扩展了激光在外科手术和其他治疗医学应用中的作用。即使光纤激光传输不是一个绝对的技术要求,它能够并且经常使临床广泛采用的实用激光治疗程序不同于其他治疗程序。本文介绍光纤传输在激光外科手术和治疗中的作用。对外科激光和光纤作了历史介绍后是关于光纤传输激光如何用于治疗的一般讨论。文章还包括医疗激光市场新的迅速发展的讨论。光纤激光外科简史高功率连… 相似文献
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光纤激光技术现已普遍应用于材料加工领域,在打标、切割、焊接和钻孔等应用方面都表现出了传统激光器系统无法媲美的优越性能.实际上除了材料加工方面的应用,光纤激光技术以其独特的性能在其它方面也有优异的表现,例如超连续谱激光,虽然在光纤激光出现之前获得超连续谱激光的技术就已经存在,但光纤激光技术,尤其是光子晶体光纤的出现对超连续谱激光的发展具有极大的促进作用. 相似文献
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光纤激光器的新进展 总被引:28,自引:1,他引:28
刘颂豪 《光电子技术与信息》2003,16(1):1-8
简要地介绍光纤激光器的基本结构,特点及其在光纤通信中的应用,着重描述了双包层掺杂光纤激光器和任意形状光纤激光器,指出高功率光纤激光器在激光技术领域(如激光加工、光电探测、生物医疗、光存储等)中的广阔应用前景。 相似文献
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刘颂豪 《大气与环境光学学报》2003,(1)
简要地介绍光纤激光器的基本结构、特点及其在光纤通信中的应用,着重描述了双包层掺杂光纤激光器和任意形状光纤激光器,指出高功率光纤激光器在激光技术领域(如激光加工、光电探测、生物医疗、光存储等)中的广阔应用前景。 相似文献
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本文首先评述医用激光的国内外市场,然后详细分析国内医用激光仪器与激光医学研究前沿和国外的差距,最后提出产业化的若干具体建议。 相似文献
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Multimodal medical image fusion is the process of retrieving valuable information from medical images. The primary goal of medical image fusion is to combine several images obtained from various sources into a distinct image suitable for improved diagnosis. Complexity in medical images is higher, and many soft computing methods are applied by researchers to process them. Intuitionistic fuzzy sets are more appropriate for medical images because the images have many uncertainties. In this paper, a new method, based on Sugeno's intuitionistic fuzzy set (SIFS), is proposed. First, medical images are converted into Sugeno's intuitionistic fuzzy image (SIFI). An exponential intuitionistic fuzzy entropy calculates the optimum values of membership, non‐membership, and hesitation degree functions. Then, the two SIFIs are disintegrated into image blocks for calculating the count of blackness and whiteness of the blocks. Finally, the fused image is rebuilt from the recombination of SIFI image blocks. The efficiency of the use of SIFS in multimodal medical image fusion is demonstrated on several pairs of images and the results are compared with existing studies in recent literature. 相似文献
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文章介绍了我国医疗电子市场高速增长的良好势头,阐述了刺激我国医疗电子发展的几个因素,总结了医疗电子产品的发展趋势和存在的问题。 相似文献
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医用电气设备和医用电气系统警报系统对于病人病情监控有重要的警报作用,深入探讨现有国际标准对于医用电气设备和医用电气系统警报系统的测试方法和要求,分析其在实际应用中的不足之处,提出可以通过对波形的时域、频域和数值处理得到更好的测试结果,并给出了一个测试实例. 相似文献
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文中旨在解决医院电子病历信息管理系统存在的问题,探究大数据技术在该领域中的应用。首先,介绍了大数据技术在医院电子病历信息管理系统中的应用优势,包括对海量数据的高效处理和深度挖掘、提供全面且准确的数据支持、提高临床决策效能等。其次,分析了医院电子病历信息管理系统存在的不足,包括病历信息不规范、数据存储不完整、数据分析效率较低等。最后,提出了大数据技术在医院电子病历信息管理系统中的应用措施,包括构建完善的数据标准化体系、实现数据可视化和智能决策、利用机器学习算法进行数据挖掘等。通过上述措施,提高了医院电子病历管理的智能化水平和临床决策效能,可为相关人员提供参考。 相似文献
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Transfer learning from natural image datasets, such as ImageNet, is common for applying deep learning to medical imaging. However, the modalities of natural and medical images differ considerably, and the reason for the latest medical research preferring ImageNet to medical data is questionable. In this study, we investigated the properties of medical pre-training and its transfer effectiveness on various medical tasks. Through an intuitive convolution-based analysis, we determined the modality characteristics of images. Surprisingly, medical pre-training showed exceptional performance for a classification task but not for a segmentation task since medical data are visually homogeneous and lack morphological information. Using data with diverse modalities helped overcome such drawbacks, resulting in medical pre-training achieving performance comparable to pre-training with ImageNet with considerably fewer samples than ImageNet for both aforementioned tasks. Finally, a study of learned representations and realistic scenarios indicated that while ImageNet is the best choice for medical imaging, medical pre-training has significant potential. 相似文献