医学影像技术的未来趋势(上):混合成像技术
在楼氏电容关于医疗保健技术系列的第一期内容中,我们曾讨论了关于随着技术更加贴近而改善疗效的医疗领域。在本期推送中,我们将聚焦于三大趋势:医学成像技术的革新如何推动诊断精准度的提升、患者康复成果的改善以及护理服务的可及性增强。我们将借助利用射频脉冲(RF)信号的磁共振成像(MRI)来了解这些趋势。
医学专业人员依赖于先进的医学影像技术,这些技术能够无创地揭示身体内部的结构和功能,为医疗实践提供了宝贵洞察。这些成像技术不仅有助于疾病的早期发现和损伤的精确诊断,还能监测治疗效果以及优化手术计划。每一种成像模式都是针对特定的临床用例精心设计的,旨在满足不同医疗需求。(详见图1)。
* 信号范围从20kHz的声波到Exa-Hertz的伽马辐射 图1: 常见的医学影像类型及其相关临床应用
混合成像技术
混合成像技术通过融合多种医学影像技术的优势,从而生成出高度精细的医学影像。医学专业人员通过使用这些医学影像,能够更高效地完成患者的诊断与治疗工作。
例如,PET-MRI技术便是将正电子发射断层扫描(PET)的分子成像功能与磁共振成像(MRI)的软组织对比功能完美融合的创新技术。MRI能够为我们提供身体内部结构及功能的详尽图像,而PET则通过示踪剂精准地凸显出异常区域。这种技术的结合在阿尔茨海默病、癫痫和脑肿瘤等疾病的护理中尤为有效。然而,纵观医学影像技术的发展史,将PET与MRI进行集成曾是一个巨大的挑战,因为MRI的强磁体会对PET的成像探测器产生干扰。以往,两种扫描需分别进行后再进行图像合并,这不仅涉及复杂的图像处理流程,还可能导致数据丢失的风险。但据斯坦福医学院的研究表明,PET-MRI技术不仅比单独进行扫描更加精准,同时在安全性和便捷性方面也有了显著的提升。
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