【健康科普】什么是超声显像诊断技术
<!----><style type="text/css">html{font-size:375%}</style><link href="https://pic.app.yilongnews.com/static/publish/css/style.css?v=1605251010513" rel="stylesheet" position="1" data-qf-origin="/static/publish/css/style.css?v=1605251010513"><!-- 付费贴--> <div class="preview_article "> <!----> <section class="_135editor" data-role="splitline" data-tools="135编辑器" data-id="142915"><section class="" style="margin: 10px auto; padding-top: 10px; box-sizing: border-box;"><section><section style="display: flex; justify-content: space-between; padding: 0 5em 0 2em; box-sizing: border-box;"><section class="assistant" style="width: 50px; margin-bottom: -20px; box-sizing: border-box; transform: rotate(-20deg); -webkit-transform: rotate(-20deg); -moz-transform: rotate(-20deg); -o-transform: rotate(-20deg);"><img class="assistant" style="width: 100%; display: block; vertical-align: inherit; box-sizing: border-box; max-width: 100% !important;" draggable="false" src="https://bcn.135editor.com/files/images/editor_styles/2c0f639d4d78d9bfc5302842d36dee76.gif" data-width="100%" data-ratio="0.84" data-w="900" /></section><section class="assistant" style="width: 20px; 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letter-spacing: 1.5px; font-size: 14px; color: #84695a; background-color: transparent;" data-autoskip="1"><p style="max-inline-size: 100%; margin: 0px; padding: 0px; clear: both; min-height: 1em; cursor: text; color: #333333; font-size: 17px; caret-color: #ff0000; text-decoration-thickness: initial; text-indent: 2.1875em; box-sizing: border-box !important; overflow-wrap: break-word !important; text-align: justify; font-family: mp-quote, -apple-system-font, BlinkMacSystemFont, 'Helvetica Neue', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei UI', 'Microsoft YaHei', Arial, sans-serif;" align="justify"><span style="max-inline-size: 100%; margin: 0px; padding: 0px; box-sizing: border-box !important; overflow-wrap: break-word !important; cursor: text; font-size: 16px;">超声显像诊断技术是指利用超声波对人体进行检测，以了解机体的生理、组织结构，从而发现和治疗疾病。超声显像诊断技术是一种无创、无痛、方便、直观的检查方法，特别是B超，它的适用范围非常广，与X射线、CT、磁共振成像并列为四大医学成像显像诊断技术。现在就让我们来看看，什么是超声显像诊断技术。</span></p><p style="max-inline-size: 100%; margin: 0px; padding: 0px; clear: both; 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display: flex; justify-content: center;"><section class="" style="display: flex; flex-direction: column;"><section class="assistant" style="width: 15px; margin: 0 auto -10px; z-index: 4; box-sizing: border-box;"></section><section class="" style="background-color: #fff2f1;"><section style="display: flex; justify-content: space-between;"><section class="" style="width: 8px; height: 8px; border-radius: 100%; background-color: #ffffff; margin: 0 2px; box-sizing: border-box;"></section><section style="width: 8px; height: 8px; border-radius: 100%; background-color: #ffffff; margin: 0 2px; box-sizing: border-box;"></section><section style="width: 8px; height: 8px; border-radius: 100%; background-color: #ffffff; margin: 0 2px; box-sizing: border-box;"></section><section style="width: 8px; height: 8px; border-radius: 100%; background-color: #ffffff; margin: 0 2px; box-sizing: border-box;"></section><section style="width: 8px; height: 8px; border-radius: 100%; background-color: #ffffff; margin: 0 2px; box-sizing: border-box;"></section><section class="" style="width: 8px; height: 8px; border-radius: 100%; background-color: #ffffff; margin: 0 2px; box-sizing: border-box;"></section><section style="width: 8px; height: 8px; border-radius: 100%; background-color: #ffffff; margin: 0 2px; box-sizing: border-box;"></section></section><section class="" style="padding: 4px 15px 0; box-sizing: border-box;"><section class="" style="font-size: 16px; color: #f55656; text-align: center;"><strong class="135brush" data-brushtype="text">超声显像诊断技术的基本原理</strong></section></section><section style="width: 50px; margin-left: auto; box-sizing: border-box;"></section></section></section></section></section><p style="max-inline-size: 100%; margin: 0px; padding: 0px; clear: both; min-height: 1em; cursor: text; color: #333333; font-size: 17px; caret-color: #ff0000; text-decoration-thickness: initial; text-indent: 2.1875em; box-sizing: border-box !important; overflow-wrap: break-word !important; text-align: justify; font-family: mp-quote, -apple-system-font, BlinkMacSystemFont, 'Helvetica Neue', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei UI', 'Microsoft YaHei', Arial, sans-serif;" align="justify"><span style="font-size: 16px; background-color: transparent;">在超声波的影响下，人体的器官、组织，都会出现一种独特的声阻性和衰减特性。超声显像技术是把超声波由浅到深射入人体的技术，利用不同的声阻和衰减特性，使其在经过组织时产生不同的衰减和反射反应，从而形成超声影像。利用仪器对回声进行处理，把信号的强度按不同的光点分别显示在荧光屏上，并通过扫描的方法，得到人体横截面的超声波图像。</span></p><section class="_135editor" data-role="title" data-tools="135编辑器" data-id="142943"><section class="" style="margin: 10px auto; display: flex; justify-content: center;"><section style="display: flex; flex-direction: column;"><section class="assistant" style="width: 15px; margin: 0 auto -10px; z-index: 4; box-sizing: border-box;"></section><section style="background-color: #fff2f1;"><section style="display: flex; justify-content: space-between;"><section style="width: 8px; height: 8px; border-radius: 100%; background-color: #ffffff; margin: 0 2px; box-sizing: border-box;"></section><section style="width: 8px; height: 8px; border-radius: 100%; background-color: #ffffff; margin: 0 2px; box-sizing: border-box;"></section><section style="width: 8px; height: 8px; border-radius: 100%; background-color: #ffffff; margin: 0 2px; box-sizing: border-box;"></section><section style="width: 8px; height: 8px; border-radius: 100%; background-color: #ffffff; margin: 0 2px; box-sizing: border-box;"></section><section style="width: 8px; height: 8px; border-radius: 100%; background-color: #ffffff; margin: 0 2px; box-sizing: border-box;"></section><section style="width: 8px; height: 8px; border-radius: 100%; background-color: #ffffff; margin: 0 2px; box-sizing: border-box;"></section><section style="width: 8px; height: 8px; border-radius: 100%; background-color: #ffffff; margin: 0 2px; box-sizing: border-box;"></section></section><section style="padding: 4px 15px 0; box-sizing: border-box;"><section style="font-size: 16px; color: #f55656; text-align: center;"><strong class="135brush" data-brushtype="text">彩超的优势</strong></section></section><section style="width: 50px; margin-left: auto; box-sizing: border-box;"></section></section></section></section></section><p style="max-inline-size: 100%; margin: 0px; padding: 0px; clear: both; min-height: 1em; cursor: text; color: #333333; font-size: 17px; caret-color: #ff0000; text-decoration-thickness: initial; text-indent: 2.1875em; box-sizing: border-box !important; overflow-wrap: break-word !important; text-align: justify; font-family: mp-quote, -apple-system-font, BlinkMacSystemFont, 'Helvetica Neue', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei UI', 'Microsoft YaHei', Arial, sans-serif;" align="justify"><span style="font-size: 16px; text-indent: 2.1875em; background-color: transparent;">彩超是一种新的彩色多普勒成像技术，它是在黑白超声的基础上，加入了彩色多普勒成像技术。彩超能提高确诊率，通过彩超可以检测到某些黑白超声不能检测到的病灶，同时还可以给病人提供血流动力学方面的信息，保证对疾病的治疗效果。</span></p><section class="_135editor" data-role="title" data-tools="135编辑器" data-id="142943"><section class="" style="margin: 10px auto; display: flex; justify-content: center;"><section style="display: flex; flex-direction: column;"><section class="assistant" style="width: 15px; margin: 0 auto -10px; z-index: 4; box-sizing: border-box;"></section><section class="" style="background-color: #fff2f1;"><section style="display: flex; justify-content: space-between;"><section style="width: 8px; height: 8px; border-radius: 100%; background-color: #ffffff; margin: 0 2px; box-sizing: border-box;"></section><section style="width: 8px; height: 8px; border-radius: 100%; background-color: #ffffff; margin: 0 2px; box-sizing: border-box;"></section><section style="width: 8px; height: 8px; border-radius: 100%; background-color: #ffffff; margin: 0 2px; box-sizing: border-box;"></section><section style="width: 8px; height: 8px; border-radius: 100%; background-color: #ffffff; margin: 0 2px; box-sizing: border-box;"></section><section style="width: 8px; height: 8px; border-radius: 100%; background-color: #ffffff; margin: 0 2px; box-sizing: border-box;"></section><section style="width: 8px; height: 8px; border-radius: 100%; background-color: #ffffff; margin: 0 2px; box-sizing: border-box;"></section><section style="width: 8px; height: 8px; border-radius: 100%; background-color: #ffffff; margin: 0 2px; box-sizing: border-box;"></section></section><section style="padding: 4px 15px 0; box-sizing: border-box;"><section style="font-size: 16px; color: #f55656; text-align: center;"><strong class="135brush" data-brushtype="text">超声检查前是否需要禁食</strong></section></section><section style="width: 50px; margin-left: auto; box-sizing: border-box;"></section></section></section></section></section><p style="max-inline-size: 100%; margin: 0px; padding: 0px; clear: both; min-height: 1em; cursor: text; color: #333333; font-size: 17px; caret-color: #ff0000; text-decoration-thickness: initial; text-indent: 2.1875em; box-sizing: border-box !important; overflow-wrap: break-word !important; text-align: justify; font-family: mp-quote, -apple-system-font, BlinkMacSystemFont, 'Helvetica Neue', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei UI', 'Microsoft YaHei', Arial, sans-serif;" align="justify"><span style="font-size: 16px; background-color: transparent;">并不是所有的超声检查都必须空腹，只有在检查腹部、胃肠等的时候，患者才需要空腹，这样可以降低气体对超声波的影响，也可以避免食物遮挡肠道。通常，病人吃完东西后，胆囊会出现收缩，这就很难判断这是生理性还是病理性，同时饮食也会对胆囊腔的病变有一定的影响。所以，对于普通成年人来说，在进行检查时，应至少禁食6～8个小时，而在体检的前一天，应注意饮食清淡，第二天要空腹。不过，鉴于小孩的特殊性，一般会让儿童禁食4个多小时，如果儿童口渴了，可喝少量的水，不过最好是不喝水。</span></p><section class="_135editor" data-role="title" data-tools="135编辑器" data-id="142943"><section class="" style="margin: 10px auto; display: flex; justify-content: center;"><section class="" style="display: flex; flex-direction: column;"><section class="assistant" style="width: 15px; margin: 0 auto -10px; z-index: 4; box-sizing: border-box;"></section><section class="" style="background-color: #fff2f1;"><section class="" style="display: flex; justify-content: space-between;"><section style="width: 8px; height: 8px; border-radius: 100%; background-color: #ffffff; margin: 0 2px; box-sizing: border-box;"></section><section style="width: 8px; height: 8px; border-radius: 100%; background-color: #ffffff; margin: 0 2px; box-sizing: border-box;"></section><section style="width: 8px; height: 8px; border-radius: 100%; background-color: #ffffff; margin: 0 2px; box-sizing: border-box;"></section><section style="width: 8px; height: 8px; border-radius: 100%; background-color: #ffffff; margin: 0 2px; box-sizing: border-box;"></section><section style="width: 8px; height: 8px; border-radius: 100%; background-color: #ffffff; margin: 0 2px; box-sizing: border-box;"></section><section style="width: 8px; height: 8px; border-radius: 100%; background-color: #ffffff; margin: 0 2px; box-sizing: border-box;"></section><section style="width: 8px; height: 8px; border-radius: 100%; background-color: #ffffff; margin: 0 2px; box-sizing: border-box;"></section></section><section style="padding: 4px 15px 0; box-sizing: border-box;"><section class="" style="font-size: 16px; color: #f55656; text-align: center;"><strong class="135brush" data-brushtype="text">超声检查前是否需要憋尿</strong></section></section><section style="width: 50px; margin-left: auto; box-sizing: border-box;"></section></section></section></section></section><p style="max-inline-size: 100%; margin: 0px; padding: 0px; clear: both; min-height: 1em; cursor: text; color: #333333; font-size: 17px; caret-color: #ff0000; text-decoration-thickness: initial; text-indent: 2.1875em; box-sizing: border-box !important; overflow-wrap: break-word !important; text-align: justify; font-family: mp-quote, -apple-system-font, BlinkMacSystemFont, 'Helvetica Neue', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei UI', 'Microsoft YaHei', Arial, sans-serif;" align="justify"><span style="font-size: 16px; background-color: transparent;">泌尿系统、子宫及附件、前列腺器官等检查过程中，都要进行憋尿。这是因为它们都在骨盆的最深处，被肠管所环绕，肠管里的东西和血管等，会严重影响到超声图像。如果不憋尿，超声显像所传递的信息就会是“白茫茫”的一片。只有憋尿，才能推开肠道，看到膀胱后面的子宫和卵巢。同时，适当地憋尿还能促进子宫周边组织的扩张，让内脏更好地显露，从而更好地辅助诊断。不过，在超声检查中，如果一直憋着尿也不是一件好事，因为憋尿太多，就会压迫到膀胱，导致内脏畸形和错位，造成超声检查的错觉，从而影响医生的判断。所以，在做上述器官的超声检查时，一定要注意适当憋尿。另外，也有一些患者不想憋尿，也有憋尿困难的病人，在做超声检查时，则可以通过导尿管将生理盐水注入病人的膀胱，使病人的膀胱充盈，以此使检查能够顺利进行。</span></p></section></section></section></section><section class="_135editor" data-tools="135编辑器" data-id="142537"><section style="margin: 10px auto; display: flex; justify-content: center;"><section style="display: flex; flex-direction: column;"><section style="width: 25px; margin-bottom: -15px; margin-left: -10px; z-index: 5; box-sizing: border-box;"></section><section style="display: flex;"><section style="background-color: #ff919a; padding: 0 15px 0 25px; display: flex; align-items: center; box-sizing: border-box;"><section style="font-size: 16px; color: #ffffff; text-align: center;"><strong class="135brush" data-brushtype="text">END</strong></section></section><section class="empty_paragraph" style="flex-shrink: 0;"><section style="width: 11px; box-sizing: border-box;"></section></section></section></section></section></section> <!----></div>
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