医用显示器与普通显示器的几点区别

admin · 发表于 2020-10-21 13:18:04

<img class="rich_media_thumb" src="http://mmbiz.qpic.cn/mmbiz/A1DicCH9Vl6Of1tae2jcM2c640ficFVshcD1XocXsicSCgJMUZt0xBuePMgeKtK1HW0SEmYWoyLW7AbgapOoPyXCA/0?wxfrom=5&wx_fmt=jpeg" style="margin: 0px 0px 6px; padding: 0px; width: 670px;" data-ratio="0.7470355731225297" data-w="" />\<p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; max-width: 100%; min-height: 1.5em; white-space: pre-wrap; line-height: 2em; font-family: 宋体; background-color: rgb(255, 255, 255); box-sizing: border-box !important; word-wrap: break-word !important;">医用显示器是显示领域中高清晰、高亮度的高端显示设备。<p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; max-width: 100%; min-height: 1.5em; white-space: pre-wrap; line-height: 2em; font-family: 宋体; background-color: rgb(255, 255, 255); box-sizing: border-box !important; word-wrap: break-word !important;">PACS技术的日趋成熟和普及，以及各种数字影像设备飞速发展，医用显示器，是医生实现“软读片”对患者的观察与诊断的终端影像呈现者，与用来显示黑白、彩色图像或文字的普通显示设备有着什么差异呢？<p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; max-width: 100%; min-height: 1.5em; white-space: pre-wrap; line-height: 2em; font-family: 宋体; background-color: rgb(255, 255, 255); box-sizing: border-box !important; word-wrap: break-word !important;"> <p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; max-width: 100%; min-height: 1.5em; white-space: pre-wrap; line-height: 2em; font-family: 宋体; background-color: rgb(255, 255, 255); box-sizing: border-box !important; word-wrap: break-word !important;">以液晶显示器为例，从技术参数、功能，安全认证三方面进行比较<p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; max-width: 100%; min-height: 1.5em; white-space: pre-wrap; line-height: 2em; font-family: 宋体; background-color: rgb(255, 255, 255); box-sizing: border-box !important; word-wrap: break-word !important;"> <p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; max-width: 100%; min-height: 1.5em; white-space: pre-wrap; line-height: 2em; font-family: 宋体; background-color: rgb(255, 255, 255); box-sizing: border-box !important; word-wrap: break-word !important;">1、技术参数<p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; max-width: 100%; min-height: 1.5em; white-space: pre-wrap; line-height: 2em; font-family: 宋体; background-color: rgb(255, 255, 255); box-sizing: border-box !important; word-wrap: break-word !important;">①尺寸: 以对角线长度来计算，一般以英寸为单位。<p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; max-width: 100%; min-height: 1.5em; white-space: pre-wrap; line-height: 2em; font-family: 宋体; background-color: rgb(255, 255, 255); box-sizing: border-box !important; word-wrap: break-word !important;">医用：基本与X胶片相仿，常见尺寸为：18”、20”、21”<p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; max-width: 100%; min-height: 1.5em; white-space: pre-wrap; line-height: 2em; font-family: 宋体; background-color: rgb(255, 255, 255); box-sizing: border-box !important; word-wrap: break-word !important;">普通：常见尺寸为：14”、15”、17”、19”；<p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; max-width: 100%; min-height: 1.5em; white-space: pre-wrap; line-height: 2em; font-family: 宋体; background-color: rgb(255, 255, 255); box-sizing: border-box !important; word-wrap: break-word !important;">②分辨率：单位面积内实际显示像素的数量。 1MP=1百万像素<p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; max-width: 100%; min-height: 1.5em; white-space: pre-wrap; line-height: 2em; font-family: 宋体; background-color: rgb(255, 255, 255); box-sizing: border-box !important; word-wrap: break-word !important;">医用：1MP (1024×1280)2MP (1200×1600)3MP (1536×2048)5MP (2048×2560)10MP (4096×2560)<p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; max-width: 100%; min-height: 1.5em; white-space: pre-wrap; line-height: 2em; font-family: 宋体; background-color: rgb(255, 255, 255); box-sizing: border-box !important; word-wrap: break-word !important;">普通：800×600、1024×768，1280×1204<p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; max-width: 100%; min-height: 1.5em; white-space: pre-wrap; line-height: 2em; font-family: 宋体; background-color: rgb(255, 255, 255); box-sizing: border-box !important; word-wrap: break-word !important;">③亮度：亮度就是显示器上显示图像有多么明亮的程度，单位（cd/m2）坎德拉每平方米<p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; max-width: 100%; min-height: 1.5em; white-space: pre-wrap; line-height: 2em; font-family: 宋体; background-color: rgb(255, 255, 255); box-sizing: border-box !important; word-wrap: break-word !important;">医用：600-700 cd/m2 标准校正设定的亮度在400-500 cd/m2之间；要求3万小时,甚至10万小时亮度值保持不变。<p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; max-width: 100%; min-height: 1.5em; white-space: pre-wrap; line-height: 2em; font-family: 宋体; background-color: rgb(255, 255, 255); box-sizing: border-box !important; word-wrap: break-word !important;">普通：200-300 cd/m2 无特殊要求<p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; max-width: 100%; min-height: 1.5em; white-space: pre-wrap; line-height: 2em; font-family: 宋体; background-color: rgb(255, 255, 255); box-sizing: border-box !important; word-wrap: break-word !important;">④对比度：描述显示器显示黑与白之间的差别，表达显示器最亮值和最暗值之比，对比度也叫动态范围。<p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; max-width: 100%; min-height: 1.5em; white-space: pre-wrap; line-height: 2em; font-family: 宋体; background-color: rgb(255, 255, 255); box-sizing: border-box !important; word-wrap: break-word !important;">医用：600:1---1000:1 普通：300:1--- 400:1<p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; max-width: 100%; min-height: 1.5em; white-space: pre-wrap; line-height: 2em; font-family: 宋体; background-color: rgb(255, 255, 255); box-sizing: border-box !important; word-wrap: break-word !important;">⑤灰阶：反映了黑白图像之间的层次，是黑白医用影像非常重要的特性。灰阶显示要求配有专用显卡 <p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; max-width: 100%; min-height: 1.5em; white-space: pre-wrap; line-height: 2em; font-family: 宋体; background-color: rgb(255, 255, 255); box-sizing: border-box !important; word-wrap: break-word !important;">医用：10 bit--1024灰阶，10bit或12bit（1024--2048灰阶）<p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; max-width: 100%; min-height: 1.5em; white-space: pre-wrap; line-height: 2em; font-family: 宋体; background-color: rgb(255, 255, 255); box-sizing: border-box !important; word-wrap: break-word !important;">普通： 6bit-64 、 8bit- 256灰阶<p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; max-width: 100%; min-height: 1.5em; white-space: pre-wrap; line-height: 2em; font-family: 宋体; background-color: rgb(255, 255, 255); box-sizing: border-box !important; word-wrap: break-word !important;">⑥可视角度<p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; max-width: 100%; min-height: 1.5em; white-space: pre-wrap; line-height: 2em; font-family: 宋体; background-color: rgb(255, 255, 255); box-sizing: border-box !important; word-wrap: break-word !important;">医用：上下/左右均可达到178°超宽视角<p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; max-width: 100%; min-height: 1.5em; white-space: pre-wrap; line-height: 2em; font-family: 宋体; background-color: rgb(255, 255, 255); box-sizing: border-box !important; word-wrap: break-word !important;">普通：上下视角140°左右，左右视角160°左右<p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; max-width: 100%; min-height: 1.5em; white-space: pre-wrap; line-height: 2em; font-family: 宋体; background-color: rgb(255, 255, 255); box-sizing: border-box !important; word-wrap: break-word !important;">⑦响应时间：指的是液晶显示器对输入信号显示图像的反应速度，也就是液晶由暗转亮或由亮转暗的反应时间。通常都是以毫秒（ms）来计算<p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; max-width: 100%; min-height: 1.5em; white-space: pre-wrap; line-height: 2em; font-family: 宋体; background-color: rgb(255, 255, 255); box-sizing: border-box !important; word-wrap: break-word !important;">医用：对于一些动态高清的影像，一般为几毫秒左右，对于静态的影像要求不高<p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; max-width: 100%; min-height: 1.5em; white-space: pre-wrap; line-height: 2em; font-family: 宋体; background-color: rgb(255, 255, 255); box-sizing: border-box !important; word-wrap: break-word !important;">普通：16--5ms左右<p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; max-width: 100%; min-height: 1.5em; white-space: pre-wrap; line-height: 2em; font-family: 宋体; background-color: rgb(255, 255, 255); box-sizing: border-box !important; word-wrap: break-word !important;">2、功能<p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; max-width: 100%; min-height: 1.5em; white-space: pre-wrap; line-height: 2em; font-family: 宋体; background-color: rgb(255, 255, 255); box-sizing: border-box !important; word-wrap: break-word !important;"><img class="zoom" width="367" height="247" border="0" src="http://mmbiz.qpic.cn/mmbiz/A1DicCH9Vl6NejwSJArTKM1LkhNMSmts0htdPQ5Mwkia65rqTaUW1ITnlOB10OHediaBn3o69rgCqqEBQbX504nRA/0?wx_fmt=jpeg" style="margin: 0px; padding: 0px; word-wrap: break-word; border: 0px; cursor: pointer; box-sizing: border-box !important; visibility: visible !important; width: auto !important;" data-type="jpeg" data-ratio="0.6719160104986877" data-w="381" /><p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; max-width: 100%; min-height: 1.5em; white-space: pre-wrap; line-height: 2em; font-family: 宋体; background-color: rgb(255, 255, 255); box-sizing: border-box !important; word-wrap: break-word !important;">① DICOM PART14标准： dicom曲线是显示器特性中最重要的参数之一，它直接反映该显示器的性能<p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; max-width: 100%; min-height: 1.5em; white-space: pre-wrap; line-height: 2em; font-family: 宋体; background-color: rgb(255, 255, 255); box-sizing: border-box !important; word-wrap: break-word !important;">由于电子元器件的特性，显示器的输入和输出，并不是理想的线性关系。输入输出特性曲线的两端，输入的变化引起的输出的变化不够明显，假设输入输出的范围都是0-99，在开始阶段，输入是3，也许其输出只是1，如果这种情况直接应用在医学的影像上，就会发现显示器无法正确辨认出一些细微的软组织的密度变化（如图二）。为了给医用显示器的性能指定一个规范，世界医学组织制定了dicom标准，就是为了拉大每个灰阶的差异，即在输入是3的情况下，使输出也为3。<p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; max-width: 100%; min-height: 1.5em; white-space: pre-wrap; line-height: 2em; font-family: 宋体; background-color: rgb(255, 255, 255); box-sizing: border-box !important; word-wrap: break-word !important;">医用：具备调整DICOM标准曲线的能力，使其和DICOM标准相吻合，从而保证影像的显示质量。<p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; max-width: 100%; min-height: 1.5em; white-space: pre-wrap; line-height: 2em; font-family: 宋体; background-color: rgb(255, 255, 255); box-sizing: border-box !important; word-wrap: break-word !important;">普通：无<p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; max-width: 100%; min-height: 1.5em; white-space: pre-wrap; line-height: 2em; font-family: 宋体; background-color: rgb(255, 255, 255); box-sizing: border-box !important; word-wrap: break-word !important;">② SBC功能：恒定的亮度调节功能<p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; max-width: 100%; min-height: 1.5em; white-space: pre-wrap; line-height: 2em; font-family: 宋体; background-color: rgb(255, 255, 255); box-sizing: border-box !important; word-wrap: break-word !important;"><img class="zoom" width="418" height="275" border="0" src="http://mmbiz.qpic.cn/mmbiz/A1DicCH9Vl6NejwSJArTKM1LkhNMSmts0gg7akCkxvUTZ3ouAG2tmUjKgOvhlLJHAhn4CQeovRVDASheiboI3cicA/0?wx_fmt=jpeg" style="margin: 0px; padding: 0px; word-wrap: break-word; border: 0px; cursor: pointer; box-sizing: border-box !important; visibility: visible !important; width: auto !important;" data-type="jpeg" data-ratio="0.658256880733945" data-w="436" /><p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; max-width: 100%; min-height: 1.5em; white-space: pre-wrap; line-height: 2em; font-family: 宋体; background-color: rgb(255, 255, 255); box-sizing: border-box !important; word-wrap: break-word !important;">显示器亮度会随着使用时间而衰减的（如图三），为了符合临床的阅片标准、逐个图像的稳定性、一致性和整体性（是指在医院内不同地点的工作站上显示的同一图像其亮度、灰度、对比度等是完全一样的，这样不同地点医生看到的是同样的图像；打印出来的图像与显示在监视器上的图像也是一样的），就必需对亮度进行一个随时进行监测校准调整控制，使其稳定在400~500 cd/m2 标准之间，且不低于3万小时亮度值的保持。<p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; max-width: 100%; min-height: 1.5em; white-space: pre-wrap; line-height: 2em; font-family: 宋体; background-color: rgb(255, 255, 255); box-sizing: border-box !important; word-wrap: break-word !important;">医用：背面有光学传感器接口，可以接入光学传感器进行校正，保证系统显示器的一致性和整体性。<p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; max-width: 100%; min-height: 1.5em; white-space: pre-wrap; line-height: 2em; font-family: 宋体; background-color: rgb(255, 255, 255); box-sizing: border-box !important; word-wrap: break-word !important;">普通：无亮度监测控制动能，亮度衰减够快<p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; max-width: 100%; min-height: 1.5em; white-space: pre-wrap; line-height: 2em; font-family: 宋体; background-color: rgb(255, 255, 255); box-sizing: border-box !important; word-wrap: break-word !important;"> <p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; max-width: 100%; min-height: 1.5em; white-space: pre-wrap; line-height: 2em; font-family: 宋体; background-color: rgb(255, 255, 255); box-sizing: border-box !important; word-wrap: break-word !important;">③显示模式：诊断工作站等需要两台或多台显示器时<p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; max-width: 100%; min-height: 1.5em; white-space: pre-wrap; line-height: 2em; font-family: 宋体; background-color: rgb(255, 255, 255); box-sizing: border-box !important; word-wrap: break-word !important;">医用：横/竖屏转换、10bit--12bit灰阶输出；结合显卡功能，完成独立显示、扩展显示、复制显示、彩色—黑白转换、主副显示互换、一卡两显等功能。<p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; max-width: 100%; min-height: 1.5em; white-space: pre-wrap; line-height: 2em; font-family: 宋体; background-color: rgb(255, 255, 255); box-sizing: border-box !important; word-wrap: break-word !important;">普通：常规模式<p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; max-width: 100%; min-height: 1.5em; white-space: pre-wrap; line-height: 2em; font-family: 宋体; background-color: rgb(255, 255, 255); box-sizing: border-box !important; word-wrap: break-word !important;">3、认证<p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; max-width: 100%; min-height: 1.5em; white-space: pre-wrap; line-height: 2em; font-family: 宋体; background-color: rgb(255, 255, 255); box-sizing: border-box !important; word-wrap: break-word !important;">①医疗认证<p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; max-width: 100%; min-height: 1.5em; white-space: pre-wrap; line-height: 2em; font-family: 宋体; background-color: rgb(255, 255, 255); box-sizing: border-box !important; word-wrap: break-word !important;">医用：FDA510(k)、ISO13485<p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; max-width: 100%; min-height: 1.5em; white-space: pre-wrap; line-height: 2em; font-family: 宋体; background-color: rgb(255, 255, 255); box-sizing: border-box !important; word-wrap: break-word !important;">普通：无<p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; max-width: 100%; min-height: 1.5em; white-space: pre-wrap; line-height: 2em; font-family: 宋体; background-color: rgb(255, 255, 255); box-sizing: border-box !important; word-wrap: break-word !important;">②安全认证<p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; max-width: 100%; min-height: 1.5em; white-space: pre-wrap; line-height: 2em; font-family: 宋体; background-color: rgb(255, 255, 255); box-sizing: border-box !important; word-wrap: break-word !important;">医用：CE、UL、CCC<p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; max-width: 100%; min-height: 1.5em; white-space: pre-wrap; line-height: 2em; font-family: 宋体; background-color: rgb(255, 255, 255); box-sizing: border-box !important; word-wrap: break-word !important;">普通：CCC 等一些基本标准<p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; max-width: 100%; min-height: 1.5em; white-space: pre-wrap; line-height: 2em; font-family: 宋体; background-color: rgb(255, 255, 255); box-sizing: border-box !important; word-wrap: break-word !important;">另：由于教学的要求和医生的习惯，国内外医生都习惯用笔在胶片或显示屏上指点示意，来表达对影像具体细节的观点，液晶屏材料是易破损材料，为了适应医用环境，显示器厂家会负责任的在生产时安装上液晶屏的保护板。<p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; max-width: 100%; min-height: 1.5em; white-space: pre-wrap; line-height: 2em; font-family: 宋体; background-color: rgb(255, 255, 255); box-sizing: border-box !important; word-wrap: break-word !important;">以上就是它们的差异之处，明白了医用显示器与普通显示器的差别，就能更好的合理地采购、使用、维修医用显示器。您看此文用 <img src="http://mmbiz.qpic.cn/mmbiz/iaXDmvibibwTLUAqg2cUWlqgcoLtmRHicBkdx5Y5AiaBG2ibtYCtgGFkUjoBkbXqb1lxAOp8ZUn5x4DVsCz0WGHNF7oQ/0?wx_fmt=gif" data-ratio="2.25" data-w="16" style="margin: 0px; padding: 0px; background-image: none; background-attachment: scroll; box-sizing: border-box !important; word-wrap: break-word !important; width: auto !important; visibility: visible !important;" /> <img src="http://mmbiz.qpic.cn/mmbiz/iaXDmvibibwTLUAqg2cUWlqgcoLtmRHicBkdLYic8L7xaAHATvd0Mz1JEx51hM8Tvz8SOxreviahyh7ywgrozDD6yKpg/0?wx_fmt=gif" data-ratio="2.25" data-w="16" style="margin: 0px; padding: 0px; background-image: none; background-attachment: scroll; box-sizing: border-box !important; word-wrap: break-word !important; width: auto !important; visibility: visible !important;" />·<img src="http://mmbiz.qpic.cn/mmbiz/iaXDmvibibwTLUAqg2cUWlqgcoLtmRHicBkdQBsldXraDZeNRwDdcww394we5KKBPt036GGPN2diaLSLPLTwApNefjA/0?wx_fmt=gif" data-ratio="2.25" data-w="16" style="margin: 0px; padding: 0px; background-image: none; background-attachment: scroll; box-sizing: border-box !important; word-wrap: break-word !important; width: auto !important; visibility: visible !important;" /> <img src="http://mmbiz.qpic.cn/mmbiz/iaXDmvibibwTLUAqg2cUWlqgcoLtmRHicBkdrxmJuf7iccaD6rlYuYeKE0tqFQWUdIib3aNJXAOaOIaalQunB2n02DOA/0?wx_fmt=gif" data-ratio="2.25" data-w="16" style="margin: 0px; padding: 0px; background-image: none; background-attachment: scroll; box-sizing: border-box !important; word-wrap: break-word !important; width: auto !important; visibility: visible !important;" />秒，转发只需1秒呦~<hr style="white-space: normal; color: rgb(131, 104, 28); font-family: Avenir, sans-serif; line-height: 25px;" /> ID: 最具人气的医疗器械维修新媒体平台分享医疗器械前沿动态、医疗器械维修经验 加群主微信 shanying916 与更多行业从业人员互动交流 <img data-s="300,640" data-type="jpeg" src="http://mmbiz.qpic.cn/mmbiz/A1DicCH9Vl6MoypciaNOibiaxmVLk8eA6ibKL14uWjKsZwrWboQYKTfXqPicXycwL1icfia1pAG0VzlTX3MRR4FPV0ZtZA/0?wx_fmt=jpeg" data-ratio="1.0136054421768708" data-w="147" style="float: none;" />

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