术后乳腺淋巴结活检可用纳米技术进行了！

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                    <section data-role="paragraph" data-color="rgb(182, 228, 253)" data-custom="rgb(182, 228, 253)"><section><section><section><section powered-by="gulangu"><section><section><section><section powered-by="gulangu"><section><section><section><section powered-by="gulangu"><section><section><section><section powered-by="gulangu"><section><section><section><section><p><p><img src="image/20201014/86b79d371e9862b01189f0252a03b2cd_1.png" /></p></p></section><section><section><span><strong></strong></span></section><p><span>医疗器械媒体报道先锋</span></p><p><span>分享专业医疗器械知识</span></p></section><section><section><section><span>关注</span></section></section></section></section></section></section></section></section></section></section></section></section></section></section></section></section></section></section></section></section></section></section></section><p><br  /></p><p><span>Endomagnetics公司的磁性示踪剂注射和监测系统，早前已获得FDA批准，用于指导乳房切除手术后的乳腺癌患者进行淋巴结活检。</span></p><p><br  /></p><p><p><img src="image/20201014/559d5ebeecddc0f6bb7310a1f81c7fcc_2.jpg" /></p></p><p><span><br  /></span></p><p><span>临床医师首先将涂有一层葡萄糖的氧化铁磁性纳米颗粒（Magtrace）溶液注射到肿瘤或网眼状孔隙附近。</span><span>这项程序之前一般使用的是染色剂或放射性示踪物。</span><span>然后，Magtrace进入淋巴管，通过对特定类型细胞累积的方式，对前哨淋巴结和引流淋巴结进行示踪。</span><br  /></p><p><span></span></p><p><span><br  /></span></p><p><p><img src="image/20201014/4d551211c05724143ec1b070ee2d229c_3.jpg" /></p></p><p><br  /></p><p><span>接着，外科医生就可以使用Sentimag磁性定位系统的手持式探测棒和主机，寻找被跟踪的淋巴结，获取声音和视觉信息，并对这些淋巴结进行活检和移除。</span><span>通过对癌细胞活检结果的分析，医生就可以确定乳腺癌的范围和病变程度。</span><span>与标准的放射性示踪物相比，Magtrace显然更有优势，可以使患者免于注射放射性材料，对于医生来说既安全又便于使用。</span></p><p><span><br  /></span></p><p><p><img src="image/20201014/a1f30ea837d22e3af995a0dcb4d3a4a4_4.jpg" /></p></p><p><br  /></p><p><span>在一项对147名正在实施乳房切除手术的乳腺癌患者进行的临床试验中，医生对比了Sentimag系统和使用蓝色染色剂和放射性对照物的双示踪器控制法。</span><span>结果显示，Sentimag系统和双示踪器控制法的功效基本一致，前者检测到了94.3%淋巴结，后者为93.5%。</span><span>98%的患者使用这两种方法的检测率相同。</span><span>导致的副作用有临时性的乳房变色、心动过缓以及对磁性材料的过敏反应。</span></p><p><span></span></p><p><span><br  /></span></p><p><span>前哨淋巴结和肿瘤引流淋巴结很可能是癌细胞从肿瘤转移的第一站。</span><span>检测这些很可能存在癌细胞的位置可以帮助患者和医疗团队知道，癌症是否已经扩散到了乳房的其他位置，在实施乳房切除手术之后，指导选择最佳的疗法。</span></p><p><br  /></p><p><br  /></p><section data-role="outer" label="Powered by gulangu"><section data-role="paragraph" data-color="#27939d"><p><a data-miniprogram-appid="wxdc7efe409d688f37" data-miniprogram-path="pages/index/index" data-miniprogram-nickname="智械采购" href="" data-miniprogram-type="image" data-miniprogram-servicetype="" href=""><p><img src="image/20201014/8edb31f87313bf5aa17544207dad3968_5.gif" /></p></a></p><p><br  /></p></section></section><section data-role="outer" label="Powered by gulangu"><section data-role="paragraph" 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