了解什么是DSA，看这篇就够了

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                    <p style="margin-right: 8px;margin-left: 8px;max-width: 100%;min-height: 1em;color: rgb(51, 51, 51);">相对于超声、CT、磁共振等，DSA可能对大部分人而言都是比较陌生的，目前国内DSA市场基本都是进口品牌主导，国内能生产这种医疗设备的屈指可数，也就是说，目前我们在医院看到的DSA设备基本都来自"GPST"等进口厂商。想了解DSA国内外品牌的，可阅读器械之家出品的被进口“独霸”的DSA市场——国内外主流血管造影品牌大盘点</p><p style="margin-right: 8px;margin-left: 8px;max-width: 100%;min-height: 1em;color: rgb(51, 51, 51);"><br style="max-width: 100%;box-sizing: border-box !important;word-wrap: break-word !important;"  /></p><p style="margin-right: 8px;margin-left: 8px;max-width: 100%;min-height: 1em;color: rgb(51, 51, 51);">那么究竟DSA是什么呢？</p><p style="margin-right: 8px;margin-left: 8px;max-width: 100%;min-height: 1em;color: rgb(51, 51, 51);"><span data-ratio="1.3529411764705883" class="js_tx_video_container" style="max-width: 100%;display: block;box-sizing: border-box !important;word-wrap: break-word !important;width: 661px !important;height: 495.75px !important;"></span><br style="max-width: 100%;box-sizing: border-box !important;word-wrap: break-word !important;"  /></p><p style="margin-right: 8px;margin-left: 8px;max-width: 100%;min-height: 1em;color: rgb(51, 51, 51);"><br style="max-width: 100%;box-sizing: border-box !important;word-wrap: break-word !important;"  /></p><section class="" data-tools="gulangu" data-id="91382" style="max-width: 100%;color: rgb(51, 51, 51);"><section data-role="paragraph" class="" data-color="rgb(226, 86, 27)" data-custom="rgb(226, 86, 27)" style="max-width: 100%;box-sizing: border-box !important;word-wrap: break-word !important;"><section style="max-width: 100%;box-sizing: border-box !important;word-wrap: break-word !important;"><section data-width="90%" style="max-width: 100%;box-sizing: border-box !important;word-wrap: break-word !important;"><section class="" style="max-width: 100%;box-sizing: border-box !important;word-wrap: break-word !important;"><p style="margin-right: 8px;margin-left: 8px;max-width: 100%;min-height: 1em;line-height: 1.75em;box-sizing: border-box !important;word-wrap: break-word !important;"><strong style="max-width: 100%;box-sizing: border-box !important;word-wrap: break-word !important;">DSA是数字减影血管造影</strong>（Digital subtraction angiography）的英文缩写，<span style="max-width: 100%;box-sizing: border-box !important;word-wrap: break-word !important;">其基本原理是将注入造影剂前后拍摄的两帧X线图像经数字化输入图像计算机，通过减影、增强和再成像过程把血管造影影像上的骨与软组织影像消除来获得清晰的纯血管影像，是电子计算机与常规X线血管造影相结合的一种检查方法。</span><strong style="max-width: 100%;box-sizing: border-box !important;word-wrap: break-word !important;">通俗的讲就是将造影剂注入需要检查的血管中，使血管显露原形。然后通过系统处理，使血管显示更加清晰，便于医生诊断或进行手术。</strong></p><p style="max-width: 100%;min-height: 1em;box-sizing: border-box !important;word-wrap: break-word !important;"><br style="max-width: 100%;box-sizing: border-box !important;word-wrap: break-word !important;"  /></p><section class="" style="max-width: 100%;box-sizing: border-box !important;word-wrap: break-word !important;"><section style="max-width: 100%;box-sizing: border-box;word-wrap: break-word !important;"><section style="margin-top: 10px;max-width: 100%;box-sizing: border-box;text-align: center;word-wrap: break-word !important;"><section data-width="90%" style="max-width: 100%;box-sizing: border-box;display: inline-block;width: 609.297px;vertical-align: top;border-bottom: 1px solid rgb(255, 239, 183);border-bottom-right-radius: 0px;word-wrap: break-word !important;"><section style="max-width: 100%;box-sizing: border-box;word-wrap: break-word !important;"><section style="margin-top: 10px;max-width: 100%;box-sizing: border-box;line-height: 0.8;word-wrap: break-word !important;"><section style="max-width: 100%;box-sizing: border-box;width: 0px;display: inline-block;border-bottom: 0.8em solid rgb(255, 223, 111);word-wrap: break-word !important;border-left: 0.7em solid transparent !important;border-right: 0.7em solid transparent !important;"></section></section></section></section></section></section><section style="max-width: 100%;box-sizing: border-box;word-wrap: break-word !important;"><section style="margin-top: 10px;margin-bottom: 10px;max-width: 100%;box-sizing: border-box;text-align: center;word-wrap: break-word !important;"><section data-width="45%" style="padding-right: 5px;max-width: 100%;box-sizing: border-box;display: inline-block;vertical-align: top;width: 304.641px;word-wrap: break-word !important;"><section style="max-width: 100%;box-sizing: border-box;word-wrap: break-word !important;"><section style="margin-top: 10px;margin-bottom: 10px;max-width: 100%;box-sizing: border-box;word-wrap: break-word !important;"><section style="max-width: 100%;box-sizing: border-box;vertical-align: middle;display: inline-block;word-wrap: break-word !important;overflow: hidden !important;"><img class=" __bg_gif" data-copyright="0" data-cropselx1="0" data-cropselx2="246" data-cropsely1="0" data-cropsely2="275" data-ratio="0.75" data-type="gif" data-w="320" src="http://mmbiz.qpic.cn/mmbiz_gif/bfCedyicff1U95fniaReJ2rO5haRwoias8kCvBo1p0TPDNo5nvf5N2nCCHDsDOWCOyg8CRhLwFnZ84hzdlMYnAsJQ/640?wx_fmt=gif" style="box-sizing: border-box;vertical-align: middle;word-wrap: break-word !important;width: 367px !important;visibility: visible !important;"  /></section></section></section></section><section data-width="45%" style="padding-left: 5px;max-width: 100%;box-sizing: border-box;display: inline-block;vertical-align: top;width: 304.641px;word-wrap: break-word !important;"><section style="max-width: 100%;box-sizing: border-box;word-wrap: break-word !important;"><section style="margin-top: 10px;margin-bottom: 10px;max-width: 100%;box-sizing: border-box;word-wrap: break-word !important;"><section style="max-width: 100%;box-sizing: border-box;vertical-align: middle;display: inline-block;word-wrap: break-word !important;overflow: hidden !important;"><img class=" __bg_gif" data-copyright="0" data-cropselx1="0" data-cropselx2="246" data-cropsely1="0" data-cropsely2="276" data-ratio="0.75" data-type="gif" data-w="320" src="http://mmbiz.qpic.cn/mmbiz_gif/bfCedyicff1U95fniaReJ2rO5haRwoias8kgU9dDibv2MbwBQSPLSI783IvuibpmGjdics4lRoVmAaQuqWV679VSBdibw/640?wx_fmt=gif" style="box-sizing: border-box;vertical-align: middle;word-wrap: break-word !important;width: 368px !important;visibility: visible !important;"  /></section></section></section></section></section></section></section></section></section></section></section></section><section data-role="outer" label="Powered by gulangu" style="max-width: 100%;color: rgb(51, 51, 51);"><section class="" data-tools="gulangu" data-id="86045" style="max-width: 100%;box-sizing: border-box !important;word-wrap: break-word !important;"><p style="margin-right: 8px;margin-left: 8px;max-width: 100%;min-height: 1em;text-align: center;line-height: 1.75em;box-sizing: border-box !important;word-wrap: break-word !important;"><strong style="max-width: 100%;box-sizing: border-box !important;word-wrap: break-word !important;"><span style="max-width: 100%;font-size: 14px;color: rgb(136, 136, 136);box-sizing: border-box !important;word-wrap: break-word !important;">图：<span style="max-width: 100%;font-family: 微软雅黑;letter-spacing: 0.544px;text-align: justify;box-sizing: border-box !important;word-wrap: break-word !important;">颅脑正位、侧位 DSA 显像图</span></span></strong></p><p style="margin-right: 8px;margin-left: 8px;max-width: 100%;min-height: 1em;line-height: 1.75em;box-sizing: border-box !important;word-wrap: break-word !important;"><br style="max-width: 100%;box-sizing: border-box !important;word-wrap: break-word !important;"  /></p><p style="margin-right: 8px;margin-left: 8px;max-width: 100%;min-height: 1em;line-height: 1.75em;box-sizing: border-box !important;word-wrap: break-word !important;">DSA主要用于观察血管病变，血管狭窄的定位测量，以及为介入治疗提供真实的立体图像，是各种介入治疗的必备条件。适用于心脑血管、外周血管、肿瘤的检查和介入微创治疗。</p><p style="margin-right: 8px;margin-left: 8px;max-width: 100%;min-height: 1em;line-height: 1.75em;box-sizing: border-box !important;word-wrap: break-word !important;"><br style="max-width: 100%;box-sizing: border-box !important;word-wrap: break-word !important;"  /></p><p style="margin-right: 8px;margin-left: 8px;max-width: 100%;min-height: 1em;text-align: left;line-height: 1.75em;box-sizing: border-box !important;word-wrap: break-word !important;"><strong style="max-width: 100%;box-sizing: border-box !important;word-wrap: break-word !important;"><span style="max-width: 100%;font-size: 14px;color: rgb(136, 136, 136);box-sizing: border-box !important;word-wrap: break-word !important;"><span style="max-width: 100%;font-family: 微软雅黑;letter-spacing: 0.544px;text-align: justify;box-sizing: border-box !important;word-wrap: break-word !important;"></span></span></strong></p><section class="" style="max-width: 100%;box-sizing: border-box !important;word-wrap: break-word !important;"><section style="margin-top: 34px;margin-bottom: 8px;max-width: 100%;box-sizing: border-box;word-wrap: break-word !important;"><section style="max-width: 100%;box-sizing: border-box;background-color: rgb(117, 117, 118);height: 1px;color: rgb(255, 255, 255);word-wrap: break-word !important;"></section></section><section style="max-width: 100%;box-sizing: border-box !important;word-wrap: break-word !important;"><section style="margin-top: -24px;margin-bottom: 10px;max-width: 100%;box-sizing: border-box;word-wrap: break-word !important;"><section style="padding: 0.1em 0.3em;max-width: 100%;box-sizing: border-box;display: inline-block;border-width: 2px;border-style: solid;border-color: rgb(117, 117, 118);background-color: rgb(117, 117, 118);color: rgb(255, 255, 255);font-size: 15px;line-height: 1.8;word-wrap: break-word !important;"><p style="max-width: 100%;box-sizing: border-box;min-height: 1em;word-wrap: break-word !important;"><span style="max-width: 100%;box-sizing: border-box !important;word-wrap: break-word !important;">DSA的特点</span></p></section></section></section><section style="max-width: 100%;box-sizing: border-box !important;word-wrap: break-word !important;"><section style="max-width: 100%;box-sizing: border-box;word-wrap: break-word !important;"><section style="max-width: 100%;box-sizing: border-box;font-size: 15px;color: rgb(62, 62, 62);line-height: 1.8;word-wrap: break-word !important;"><p style="max-width: 100%;box-sizing: border-box;min-height: 1em;word-wrap: break-word !important;"><span style="max-width: 100%;box-sizing: border-box !important;word-wrap: break-word !important;">DSA具有对比度分辨率高、检查时间短、造影剂用量少，浓度低、患者X线吸收量明显降低以及节省胶片等优点，在血管疾患的临床诊断中，具有十分重要的意义。</span></p></section></section></section><section style="max-width: 100%;box-sizing: border-box !important;word-wrap: break-word !important;"><section style="margin-top: 8px;margin-bottom: 10px;max-width: 100%;box-sizing: border-box;word-wrap: break-word !important;"><section style="max-width: 100%;box-sizing: border-box;background-color: rgb(117, 117, 118);height: 1px;color: rgb(255, 255, 255);word-wrap: break-word !important;"></section></section></section></section><p style="margin-right: 8px;margin-left: 8px;max-width: 100%;min-height: 1em;text-align: left;line-height: 1.75em;box-sizing: border-box !important;word-wrap: break-word !important;"><strong style="max-width: 100%;box-sizing: border-box !important;word-wrap: break-word !important;"><span style="max-width: 100%;font-size: 14px;color: rgb(136, 136, 136);box-sizing: border-box !important;word-wrap: break-word !important;"><span style="max-width: 100%;font-family: 微软雅黑;letter-spacing: 0.544px;text-align: justify;box-sizing: border-box !important;word-wrap: break-word !important;"></span></span></strong><br style="max-width: 100%;box-sizing: border-box !important;word-wrap: break-word !important;"  /></p><section class="" style="max-width: 100%;box-sizing: border-box !important;word-wrap: break-word !important;"><section style="margin-top: 34px;margin-bottom: 8px;max-width: 100%;box-sizing: border-box;word-wrap: break-word !important;"><section style="max-width: 100%;box-sizing: border-box;background-color: rgb(117, 117, 118);height: 1px;color: rgb(255, 255, 255);word-wrap: break-word !important;"></section></section><section style="max-width: 100%;box-sizing: border-box !important;word-wrap: break-word !important;"><section style="margin-top: -24px;margin-bottom: 10px;max-width: 100%;box-sizing: border-box;word-wrap: break-word !important;"><section style="padding: 0.1em 0.3em;max-width: 100%;box-sizing: border-box;display: inline-block;border-width: 2px;border-style: solid;border-color: rgb(117, 117, 118);background-color: rgb(117, 117, 118);color: rgb(255, 255, 255);font-size: 15px;line-height: 1.8;word-wrap: break-word !important;"><p style="max-width: 100%;box-sizing: border-box;min-height: 1em;word-wrap: break-word !important;"><span style="max-width: 100%;box-sizing: border-box !important;word-wrap: break-word !important;">DSA的分类</span></p></section></section></section><section style="max-width: 100%;box-sizing: border-box !important;word-wrap: break-word !important;"><section style="max-width: 100%;box-sizing: border-box;word-wrap: break-word !important;"><section style="max-width: 100%;box-sizing: border-box;font-size: 15px;color: rgb(62, 62, 62);line-height: 1.8;word-wrap: break-word !important;"><p style="max-width: 100%;box-sizing: border-box;min-height: 1em;word-wrap: break-word !important;"><span style="max-width: 100%;box-sizing: border-box !important;word-wrap: break-word !important;">根据将造影剂注入动脉或静脉而分为动脉DSA（intraarterial&nbsp;DSA，IADSA）和静脉DSA（intravenous&nbsp;DSA，IVDSA）两种。由于IADSA血管成像清楚，造影剂用量少，所以应用多。</span></p></section></section></section><section style="max-width: 100%;box-sizing: border-box !important;word-wrap: break-word !important;"><section style="margin-top: 8px;margin-bottom: 10px;max-width: 100%;box-sizing: border-box;word-wrap: break-word !important;"><section style="max-width: 100%;box-sizing: border-box;background-color: rgb(117, 117, 118);height: 1px;color: rgb(255, 255, 255);word-wrap: break-word !important;"></section></section></section></section><p style="margin-right: 8px;margin-left: 8px;max-width: 100%;min-height: 1em;line-height: 1.75em;box-sizing: border-box !important;word-wrap: break-word !important;"><br style="max-width: 100%;box-sizing: border-box !important;word-wrap: break-word !important;"  /></p><p style="max-width: 100%;min-height: 1em;text-align: center;box-sizing: border-box !important;word-wrap: break-word !important;"><img class=" __bg_gif" data-copyright="0" data-ratio="0.8364611260053619" data-type="gif" data-w="373" src="http://mmbiz.qpic.cn/mmbiz_gif/bfCedyicff1U95fniaReJ2rO5haRwoias8kzfbooEr3O7WdhAoT21Ln448kbwUo96ubADp1zXGjvoAk36LrQhz6Tg/640?wx_fmt=gif" style="box-sizing: border-box !important;word-wrap: break-word !important;width: auto !important;visibility: visible !important;"  /></p><p style="max-width: 100%;min-height: 1em;text-align: center;box-sizing: border-box !important;word-wrap: break-word !important;"><strong style="max-width: 100%;box-sizing: border-box !important;word-wrap: break-word !important;"><span style="max-width: 100%;line-height: 25.6px;font-size: 14px;color: rgb(136, 136, 136);box-sizing: border-box !important;word-wrap: break-word !important;">图：DSA呈现下的<span style="max-width: 100%;line-height: 25.6px;box-sizing: border-box !important;word-wrap: break-word !important;">起搏器</span></span></strong></p><p style="max-width: 100%;min-height: 1em;box-sizing: border-box !important;word-wrap: break-word !important;"><span style="max-width: 100%;color: rgb(101, 101, 101);line-height: 25.6px;box-sizing: border-box !important;word-wrap: break-word !important;"></span></p><section class="" style="max-width: 100%;box-sizing: border-box !important;word-wrap: break-word !important;"><section style="margin-top: 34px;margin-bottom: 8px;max-width: 100%;box-sizing: border-box;word-wrap: break-word !important;"><section style="max-width: 100%;box-sizing: border-box;background-color: rgb(117, 117, 118);height: 1px;color: rgb(255, 255, 255);word-wrap: break-word !important;"></section></section><section style="max-width: 100%;box-sizing: border-box !important;word-wrap: break-word !important;"><section style="margin-top: -24px;margin-bottom: 10px;max-width: 100%;box-sizing: border-box;word-wrap: break-word !important;"><section style="padding: 0.1em 0.3em;max-width: 100%;box-sizing: border-box;display: inline-block;border-width: 2px;border-style: solid;border-color: rgb(117, 117, 118);background-color: rgb(117, 117, 118);color: rgb(255, 255, 255);font-size: 15px;line-height: 1.8;word-wrap: break-word !important;"><p style="max-width: 100%;box-sizing: border-box;min-height: 1em;word-wrap: break-word !important;"><span style="max-width: 100%;box-sizing: border-box !important;word-wrap: break-word !important;">DSA的造影流程</span></p></section></section></section><section style="max-width: 100%;box-sizing: border-box !important;word-wrap: break-word !important;"><section style="max-width: 100%;box-sizing: border-box;word-wrap: break-word !important;"><section style="max-width: 100%;box-sizing: border-box;font-size: 15px;color: rgb(62, 62, 62);line-height: 1.8;word-wrap: break-word !important;"><p style="margin-right: 8px;margin-left: 8px;max-width: 100%;min-height: 1em;line-height: 1.75em;box-sizing: border-box !important;word-wrap: break-word !important;">IADSA的操作是将导管插入动脉后，经导管注入肝素3000～5000u，行全身低肝素化，以防止导管凝血。将导管尖插入欲查动脉开口，导管尾端接压力注射器，快速注入造影剂。注入造影剂前将平板探测器对准屏对准检查部位。于造影前及整个造影过程中，以每秒1～3帧或更多的帧频，摄像7～10秒。经操作台处理即可得减影的血管图像。</p><p style="margin-right: 8px;margin-left: 8px;max-width: 100%;min-height: 1em;line-height: 1.75em;box-sizing: border-box !important;word-wrap: break-word !important;">IVDSA可经导管或针刺静脉，向静脉内注入造影剂，再进行减影处理。</p></section></section></section><section style="max-width: 100%;box-sizing: border-box !important;word-wrap: break-word !important;"><section style="margin-top: 8px;margin-bottom: 10px;max-width: 100%;box-sizing: border-box;word-wrap: break-word !important;"><section style="max-width: 100%;box-sizing: border-box;background-color: rgb(117, 117, 118);height: 1px;color: rgb(255, 255, 255);word-wrap: break-word !important;"></section></section></section></section><p style="max-width: 100%;min-height: 1em;box-sizing: border-box !important;word-wrap: break-word !important;"><span style="max-width: 100%;color: rgb(101, 101, 101);line-height: 25.6px;box-sizing: border-box !important;word-wrap: break-word !important;"></span></p><p style="margin-right: 8px;margin-left: 8px;max-width: 100%;min-height: 1em;line-height: 1.75em;box-sizing: border-box !important;word-wrap: break-word !important;"><br style="max-width: 100%;box-sizing: border-box !important;word-wrap: break-word !important;"  /></p><section class="" style="max-width: 100%;box-sizing: border-box !important;word-wrap: break-word !important;"><section style="margin-top: 34px;margin-bottom: 8px;max-width: 100%;box-sizing: border-box;word-wrap: break-word !important;"><section style="max-width: 100%;box-sizing: border-box;background-color: rgb(117, 117, 118);height: 1px;color: rgb(255, 255, 255);word-wrap: break-word !important;"></section></section><section style="max-width: 100%;box-sizing: border-box !important;word-wrap: break-word !important;"><section style="margin-top: -24px;margin-bottom: 10px;max-width: 100%;box-sizing: border-box;word-wrap: break-word !important;"><section style="padding: 0.1em 0.3em;max-width: 100%;box-sizing: border-box;display: inline-block;border-width: 2px;border-style: solid;border-color: rgb(117, 117, 118);background-color: rgb(117, 117, 118);color: rgb(255, 255, 255);font-size: 15px;line-height: 1.8;word-wrap: break-word !important;"><p style="max-width: 100%;box-sizing: border-box;min-height: 1em;word-wrap: break-word !important;"><span style="max-width: 100%;box-sizing: border-box !important;word-wrap: break-word !important;">DSA的优势</span></p></section></section></section><section style="max-width: 100%;box-sizing: border-box !important;word-wrap: break-word !important;"><section style="max-width: 100%;box-sizing: border-box;word-wrap: break-word !important;"><section style="max-width: 100%;box-sizing: border-box;font-size: 15px;color: rgb(62, 62, 62);line-height: 1.8;word-wrap: break-word !important;"><p style="max-width: 100%;box-sizing: border-box;min-height: 1em;word-wrap: break-word !important;"><span style="max-width: 100%;box-sizing: border-box !important;word-wrap: break-word !important;">目前，IADSA对动脉的显示已达到或超过常规选择性动脉造影的水平，应用选择性或超选择性插管，对直径200μ以下的小血管及小病变，IADSA也能很好显示。而观察较大动脉，已可不作选择性插管。所用造影剂浓度低，剂量少。还可实时观察血流的动态图像，作为功能检查手段。DSA可行数字化信息储存。</span></p><p style="max-width: 100%;box-sizing: border-box;min-height: 1em;word-wrap: break-word !important;"><span style="max-width: 100%;box-sizing: border-box !important;word-wrap: break-word !important;">IVDSA经周围静脉注入造影剂，即可获得动脉造影，操作方便，但检查区的大血管同时显影，互相重迭，造影剂用量较多，故临床应用少，不过在动脉播管困难或不适于作IADSA时可以采用。</span></p></section></section></section><section style="max-width: 100%;box-sizing: border-box !important;word-wrap: break-word !important;"><section style="margin-top: 8px;margin-bottom: 10px;max-width: 100%;box-sizing: border-box;word-wrap: break-word !important;"><section style="max-width: 100%;box-sizing: border-box;background-color: rgb(117, 117, 118);height: 1px;color: rgb(255, 255, 255);word-wrap: break-word !important;"></section></section></section></section><p style="margin-right: 8px;margin-left: 8px;max-width: 100%;min-height: 1em;line-height: 1.75em;box-sizing: border-box !important;word-wrap: break-word !important;"><br style="max-width: 100%;box-sizing: border-box !important;word-wrap: break-word !important;"  /></p><section class="" style="max-width: 100%;box-sizing: border-box !important;word-wrap: break-word !important;"><section style="margin-top: 34px;margin-bottom: 8px;max-width: 100%;box-sizing: border-box;word-wrap: break-word !important;"><section style="max-width: 100%;box-sizing: border-box;background-color: rgb(117, 117, 118);height: 1px;color: rgb(255, 255, 255);word-wrap: break-word !important;"></section></section><section style="max-width: 100%;box-sizing: border-box !important;word-wrap: break-word !important;"><section style="margin-top: -24px;margin-bottom: 10px;max-width: 100%;box-sizing: border-box;word-wrap: break-word !important;"><section style="padding: 0.1em 0.3em;max-width: 100%;box-sizing: border-box;display: inline-block;border-width: 2px;border-style: solid;border-color: rgb(117, 117, 118);background-color: rgb(117, 117, 118);color: rgb(255, 255, 255);font-size: 15px;line-height: 1.8;word-wrap: break-word !important;"><p style="max-width: 100%;box-sizing: border-box;min-height: 1em;word-wrap: break-word !important;"><span style="max-width: 100%;box-sizing: border-box !important;word-wrap: break-word !important;">DSA的临床应用</span></p></section></section></section><section style="max-width: 100%;box-sizing: border-box !important;word-wrap: break-word !important;"><section style="max-width: 100%;box-sizing: border-box;word-wrap: break-word !important;"><section style="max-width: 100%;box-sizing: border-box;font-size: 15px;color: rgb(62, 62, 62);line-height: 1.8;word-wrap: break-word !important;"><p style="max-width: 100%;min-height: 1em;box-sizing: border-box !important;word-wrap: break-word !important;">一、DSA有助于心、大血管的检查。对主动脉夹层、主动脉瘤、主动脉缩窄或主动脉发育异常和检查肺动脉可用DSA。</p><p style="max-width: 100%;min-height: 1em;box-sizing: border-box !important;word-wrap: break-word !important;">二、DSA是显示冠状动脉的金标准。</p><p style="max-width: 100%;min-height: 1em;box-sizing: border-box !important;word-wrap: break-word !important;">三、IADSA对显示颈段和颅内动脉均较清楚，可用于诊断颈段动脉狭窄或闭塞、颅内动脉瘤、血管发育异常和动脉闭塞以及颅内及颅内肿瘤的供血动脉和肿瘤染色等。</p><p style="max-width: 100%;min-height: 1em;box-sizing: border-box !important;word-wrap: break-word !important;">四、对腹主动脉及其大分支以及肢体血管的检查，DSA均能很好的显示。DSA技术发展很快，现已达到三维立体实时成像，更有利于病变的显示。</p></section></section></section><section style="max-width: 100%;box-sizing: border-box !important;word-wrap: break-word !important;"><section style="margin-top: 8px;margin-bottom: 10px;max-width: 100%;box-sizing: border-box;word-wrap: break-word !important;"><section style="max-width: 100%;box-sizing: border-box;background-color: rgb(117, 117, 118);height: 1px;color: rgb(255, 255, 255);word-wrap: break-word !important;"></section></section></section></section><p style="margin-right: 8px;margin-left: 8px;max-width: 100%;min-height: 1em;line-height: 1.75em;box-sizing: border-box !important;word-wrap: break-word !important;"><br style="max-width: 100%;box-sizing: border-box !important;word-wrap: break-word !important;"  /></p></section><section data-role="paragraph" class="" style="max-width: 100%;box-sizing: border-box !important;word-wrap: break-word !important;"><p style="max-width: 100%;min-height: 1em;text-align: center;box-sizing: border-box !important;word-wrap: break-word !important;"><img class=" __bg_gif" data-copyright="0" data-ratio="0.5666666666666667" data-type="gif" data-w="480" src="http://mmbiz.qpic.cn/mmbiz_gif/bfCedyicff1U95fniaReJ2rO5haRwoias8kW8zDQ6JwCNldgmbNMAkz7eNzUUS2icnvHbiaVYBCsicHx0y0CybJ3vauA/640?wx_fmt=gif" style="box-sizing: border-box !important;word-wrap: break-word !important;width: auto !important;visibility: visible !important;"  /></p><p style="max-width: 100%;min-height: 1em;text-align: center;box-sizing: border-box !important;word-wrap: break-word !important;"><br style="max-width: 100%;box-sizing: border-box !important;word-wrap: break-word !important;"  /></p><section class="" style="max-width: 100%;box-sizing: border-box !important;word-wrap: break-word !important;"><section style="margin-top: 15px;margin-bottom: 15px;max-width: 100%;box-sizing: border-box;text-align: center;word-wrap: break-word !important;"><section data-width="95%" style="padding-right: 10px;padding-bottom: 10px;padding-left: 10px;max-width: 100%;box-sizing: border-box;display: inline-block;width: 643.141px;vertical-align: top;box-shadow: rgb(152, 152, 152) 0px 0px 2px 0px;border-width: 2px 0px 0px;border-radius: 10px;border-style: solid;border-color: rgb(190, 119, 99) rgb(62, 62, 62) rgb(62, 62, 62);word-wrap: break-word !important;"><section style="max-width: 100%;box-sizing: border-box !important;word-wrap: break-word !important;"><section style="margin-bottom: 15px;max-width: 100%;box-sizing: border-box;word-wrap: break-word !important;"><section style="padding-right: 10px;padding-left: 10px;max-width: 100%;box-sizing: border-box;display: inline-block;vertical-align: top;border-bottom-left-radius: 0.5em;border-bottom-right-radius: 0.5em;background-color: rgb(190, 119, 99);color: rgb(255, 255, 255);word-wrap: break-word !important;"><p style="max-width: 100%;box-sizing: border-box;min-height: 1em;word-wrap: break-word !important;"><span style="max-width: 100%;text-align: justify;box-sizing: border-box !important;word-wrap: break-word !important;">新技术及展望</span></p></section></section></section><section style="max-width: 100%;box-sizing: border-box !important;word-wrap: break-word !important;"><section style="max-width: 100%;box-sizing: border-box;word-wrap: break-word !important;"><section style="max-width: 100%;box-sizing: border-box;text-align: justify;font-size: 15px;color: rgb(100, 100, 100);line-height: 1.8;word-wrap: break-word !important;"><p style="max-width: 100%;box-sizing: border-box;min-height: 1em;word-wrap: break-word !important;"><span style="max-width: 100%;box-sizing: border-box !important;word-wrap: break-word !important;">近年来，DSA宏观的发展趋势是向专用化转变，即单向C型臂系统用于全身的血管造影与介入放射学，双向C型臂系统则用于心脏和脑血管检查。目前旋转DSA成像设备已应用于临床，能使X线管作旋转运动或多轨迹运动，可实现三维血管造影的减影影像显示，同时计算机内存储蒙片的方法或程序化步进式DSA的实现，改善了以往常规DSA的不足。有效地提高DSA图像的空间分辨率和时间分辨率，减少X射线剂量，进一步增强系统的检查效率，提高图像的定量分析能力，DSA系统的主要发展趋势，也是医学影像诊断与治疗的关键所在。</span></p></section></section></section></section></section></section></section></section><section data-role="outer" label="Powered by gulangu" style="max-width: 100%;color: rgb(51, 51, 51);"><section class="" data-tools="gulangu" data-id="91152" style="max-width: 100%;box-sizing: border-box !important;word-wrap: break-word !important;"><section class="" data-tools="gulangu" data-id="91152" style="max-width: 100%;box-sizing: border-box !important;word-wrap: break-word !important;"><section style="max-width: 100%;box-sizing: border-box !important;word-wrap: break-word !important;"><section data-width="100%" style="max-width: 100%;box-sizing: border-box !important;word-wrap: break-word !important;"><section style="max-width: 100%;box-sizing: border-box !important;word-wrap: break-word !important;"><section style="max-width: 100%;box-sizing: border-box !important;word-wrap: break-word !important;"><section style="max-width: 100%;box-sizing: border-box !important;word-wrap: break-word !important;"><p style="margin-right: 8px;margin-left: 8px;max-width: 100%;min-height: 1em;line-height: 1.75em;box-sizing: border-box !important;word-wrap: break-word !important;"><br  /></p></section></section></section></section></section></section></section></section><section class="" style="max-width: 100%;color: rgb(51, 51, 51);"><section style="max-width: 100%;box-sizing: border-box !important;word-wrap: break-word !important;"><p style="max-width: 100%;min-height: 1em;box-sizing: border-box !important;word-wrap: break-word !important;"><img class="" data-copyright="0" data-ratio="0.6100178890876565" data-s="300,640" data-type="png" data-w="559" width="auto" src="http://mmbiz.qpic.cn/mmbiz_png/A1DicCH9Vl6MK5Q8sxibcIbgTPECicmaSpkdc8Z9sZ08Rp4HCzAicktdjPgic7Q7trLRwDf6Z3zz8icJhxWHoCn4iaN0w/640?wx_fmt=png" style="box-sizing: border-box !important;word-wrap: break-word !important;visibility: visible !important;width: auto !important;"  /></p></section></section><hr style="max-width: 100%;color: rgb(51, 51, 51);"  /><p style="margin-top: 10px;max-width: 100%;min-height: 1em;color: rgb(51, 51, 51);text-align: center;"><strong style="max-width: 100%;font-size: 14px;line-height: 21px;color: rgb(255, 255, 255);font-family: arial, helvetica, sans-serif;box-sizing: border-box !important;word-wrap: break-word !important;"><span class="" style="margin-right: 8px;padding: 4px 10px;max-width: 100%;border-radius: 5px;background-color: rgb(191, 0, 0);box-sizing: border-box !important;word-wrap: break-word !important;"></span></strong><br data-filtered="filtered" style="max-width: 100%;box-sizing: border-box !important;word-wrap: break-word !important;"  /></p><p style="max-width: 100%;min-height: 1em;color: rgb(51, 51, 51);text-align: center;"><strong style="max-width: 100%;box-sizing: border-box !important;word-wrap: break-word !important;"><span style="max-width: 100%;line-height: 2em;color: rgb(255, 0, 0);box-sizing: border-box !important;word-wrap: break-word !important;">ID: </span></strong></p><p style="max-width: 100%;min-height: 1em;color: rgb(51, 51, 51);text-align: center;"><span style="max-width: 100%;font-size: 14px;box-sizing: border-box !important;word-wrap: break-word !important;">最具人气的医疗器械维修新媒体平台</span></p><p style="max-width: 100%;min-height: 1em;color: rgb(51, 51, 51);text-align: center;"><span style="max-width: 100%;font-size: 14px;box-sizing: border-box !important;word-wrap: break-word !important;">医疗器械维修人自己的交流平台</span></p><p style="max-width: 100%;min-height: 1em;color: rgb(51, 51, 51);text-align: center;"><strong style="max-width: 100%;box-sizing: border-box !important;word-wrap: break-word 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