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<p><strong style=""><span style="max-width: 100%; font-size: 1em; font-family: inherit; word-wrap: break-word !important; box-sizing: border-box !important;"><strong style=""><span style="max-width: 100%; word-wrap: break-word !important; box-sizing: border-box !important; padding: 0px; margin: 0px; font-size: 14px; line-height: 28px; font-family: simsun;"><img src="http://mmbiz.qpic.cn/mmbiz/uwD6icYMd8CdPvkFkiblghjjWUpcltNQViaNczNVUSUrFe0lCpCic3TBdicbfAicIECDqYklggpTmywT3eEzZ7rkelwA/0" data-ratio="0.20725388601036268" data-w="386" src="http://mmbiz.qpic.cn/mmbiz/uwD6icYMd8CdPvkFkiblghjjWUpcltNQViaNczNVUSUrFe0lCpCic3TBdicbfAicIECDqYklggpTmywT3eEzZ7rkelwA/0" style="word-wrap: break-word !important; box-sizing: border-box !important; width: auto !important; visibility: visible !important;" /></span></strong></span></strong></p><p><strong style=""><span style="max-width: 100%; font-size: 1em; font-family: inherit; word-wrap: break-word !important; box-sizing: border-box !important;">MRI与CT各有所长</span></strong></p><p><span style=""></span>MRI与CT是两种截然不同的检查方法，各有优劣，并不能说谁比谁好，关键要看检查的目的和部位。以突发肢体活动不灵，怀疑急性脑血管病的患者为例，首先要行CT检查判断是出血还是梗死，在判断脑出血方面CT要优于磁共振。</p><p>如果是出血就不需做磁共振，如果没发现出血，必须做磁共振，因为48小时内的梗死在CT上是不显示的，另外，即使是梗死，但病变部位在小脑，脑干或病灶小的，在CT上是易漏诊的，就得做磁共振才能确诊。各种影像学检查是相辅相成的，要根据疾病的诊断需要循序渐进的选择适合的检查手段。<span style="max-width: 100%; color: rgb(79, 97, 40); font-family: inherit; font-size: 1em; line-height: 1.4em; background-color: rgb(244, 244, 244); word-wrap: break-word !important; box-sizing: border-box !important;"></span></p><p><strong style=""><span style="max-width: 100%; word-wrap: break-word !important; box-sizing: border-box !important; font-size: 1em; font-family: inherit;">MRI与CT的区别</span></strong></p><p>磁共振在显示颅颈结合部、炉底、后颅凹及脊髓疾病方面明显优于CT，对中枢神经系统疾病的诊断具有较高的敏感性。例如：脑梗塞、垂体瘤、血管畸形、外伤、先天性畸形、感染等，是诊断椎管占位、狭窄、梗阻、椎间盘变性、膨出、突出的最好方法。<br class="tn-Powered-by-gulangu" style="" /> CT对胸部疾病的诊断，日益显示出它的优越性。通常采用造影增强扫描以明确纵隔和肺门有无肿块或淋巴结增大、支气管有无狭窄或阻塞，对原发和转移性纵隔肿瘤、淋巴结结核、中心型肺癌等的诊断，起着主要的诊断作用。随着科技的发展CT对心脏及血管的检查具有重要意义。心脏方面主要是心包病变的诊断。心腔及心壁的显示。血管方面冠状动脉的钙化、大血管壁的钙化及动脉瘤改变等，CT检查可以很好显示。</p><p><strong style=""><span style="max-width: 100%; word-wrap: break-word !important; box-sizing: border-box !important; font-size: 1em; font-family: inherit;">MRI与CT的对比</span></strong></p><p>1．MRI对人体没有损伤，CT对人体有一定的辐射作用。<br class="tn-Powered-by-gulangu" style="" />2．MRI能获得脑和脊髓的立体图像，不像CT那样一层一层地扫描而有可能漏掉病变部位。<br class="tn-Powered-by-gulangu" style="" />3．在诊断心脏病变方面，对心脏肿瘤、形态学及功能的诊断MRI优于CT，而CT在心脏冠脉成像方面优于MRI。<br class="tn-Powered-by-gulangu" style="" />4．MRI对膀胱、直肠、子宫、阴道、骨、关节、肌肉等部位的检查优于CT。<br class="tn-Powered-by-gulangu" style="" />5．MRI和CT一样，都是影像诊断，很多病变单凭影像仍难以确诊，尤其是对胃肠道的病变不如内窥镜检查，可同时获得影像和病理两方面的诊断。<br class="tn-Powered-by-gulangu" style="" />6. MRI对肺部的检查不优于CT检查，对肝脏、胰腺、肾上腺、前列腺的检查比CT优越，但费用要相对昂贵。<br class="tn-Powered-by-gulangu" style="" />7．危重病人、带有心脏起搏器、义眼、体内留有金属物品以及不能配合者不能接受MRI检查。<br class="tn-Powered-by-gulangu" style="" />8 .妊娠3个月内的不建议做MRI检查。</p><p style=""><img data-s="300,640" src="http://mmbiz.qpic.cn/mmbiz/A1DicCH9Vl6MJIcDia8DjnxmueMtMaviaxkpPks1KuskPwT51OTbWsMDGknn9aanm7WBfRmOz9miciadnME3Sb79mYA/0" data-ratio="0.611439842209073" data-w="" src="http://mmbiz.qpic.cn/mmbiz/A1DicCH9Vl6MJIcDia8DjnxmueMtMaviaxkpPks1KuskPwT51OTbWsMDGknn9aanm7WBfRmOz9miciadnME3Sb79mYA/640" style="word-wrap: break-word !important; box-sizing: border-box !important; width: auto !important; visibility: visible !important;" /></p><p style=""><span style="max-width: 100%; font-size: 19px; font-family: 仿宋; word-wrap: break-word !important; box-sizing: border-box !important;">“</span><span style="max-width: 100%; color: rgb(79, 129, 189); font-weight: bold; font-size: 19px; font-family: 仿宋; word-wrap: break-word !important; box-sizing: border-box !important;"></span><span style="max-width: 100%; font-size: 19px; font-family: 仿宋; word-wrap: break-word !important; box-sizing: border-box !important;">”关注我们，每日分享维修知识、医疗器械资讯信息！</span></p><p style=""><span style="max-width: 100%; font-size: 16px; font-family: 宋体; word-wrap: break-word !important; box-sizing: border-box !important;"> </span></p><p style=""><span style="max-width: 100%; word-wrap: break-word !important; box-sizing: border-box !important; color: rgb(0, 176, 80); font-weight: bold; font-size: 19px; font-family: 仿宋;">主页回复“</span><span style="max-width: 100%; word-wrap: break-word !important; box-sizing: border-box !important; color: rgb(0, 0, 255); font-weight: bold; font-size: 19px; font-family: 仿宋;">M</span><span style="max-width: 100%; word-wrap: break-word !important; box-sizing: border-box !important; color: rgb(0, 176, 80); font-weight: bold; font-size: 19px; font-family: 仿宋;">”查看热点文章</span></p><p style=""><span style="max-width: 100%; font-size: 19px; font-family: 仿宋; word-wrap: break-word !important; box-sizing: border-box !important;">群主微信号：shanying916 </span></p><p style=""><span style="max-width: 100%; font-size: 22px; font-family: 宋体; word-wrap: break-word !important; box-sizing: border-box !important;">官方</span><span style="max-width: 100%; font-size: 22px; font-family: 宋体; word-wrap: break-word !important; box-sizing: border-box !important;">QQ群：</span><span style="max-width: 100%; word-wrap: break-word !important; box-sizing: border-box !important; color: rgb(255, 0, 0); font-weight: bold; font-size: 22px; font-family: 宋体;">23823546</span><span style="max-width: 100%; word-wrap: break-word !important; box-sizing: border-box !important;"> </span><span style="max-width: 100%; word-wrap: break-word !important; box-sizing: border-box !important; color: rgb(0, 176, 80); font-weight: bold; font-size: 22px; font-family: 宋体;">只加工程师</span><span style="max-width: 100%; font-size: 22px; font-family: 宋体; word-wrap: break-word !important; box-sizing: border-box !important;">，申请入群说明是工程师</span><span style="max-width: 100%; font-size: 22px; font-family: 宋体; word-wrap: break-word !important; box-sizing: border-box !important;">,公司名称,维修机型</span></p><p style=""><span style="max-width: 100%; color: rgb(255, 0, 0); font-weight: bold; font-size: 19px; font-family: 仿宋; word-wrap: break-word !important; box-sizing: border-box !important;">联盟推荐公众号</span></p><p style=""><span style="max-width: 100%; word-wrap: break-word !important; box-sizing: border-box !important; color: rgb(51, 204, 204); letter-spacing: 0px; font-weight: bold; font-size: 15px; font-family: 宋体;">器械科</span><span style="max-width: 100%; word-wrap: break-word !important; box-sizing: border-box !important; letter-spacing: 0px; font-size: 15px; font-family: sans-serif;">：</span><span style="max-width: 100%; word-wrap: break-word !important; box-sizing: border-box !important; color: rgb(84, 141, 212); letter-spacing: 0px; font-weight: bold; font-size: 15px; font-family: sans-serif;">qixieke</span><span style="max-width: 100%; word-wrap: break-word !important; box-sizing: border-box !important; color: rgb(84, 141, 212); letter-spacing: 0px; font-weight: bold; font-size: 15px; font-family: 宋体;">4</span><span style="max-width: 100%; word-wrap: break-word !important; box-sizing: border-box !important; color: rgb(84, 141, 212); letter-spacing: 0px; font-weight: bold; font-size: 15px; font-family: sans-serif;">008228766</span></p><p><br /></p>
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发表于 2020-10-21 13:57:00