医用显示器与普通显示器的几点区别

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                    <p class="p0" style="margin-bottom:0pt; margin-top:0pt; "><span style="color: rgb(62, 62, 62); font-size: 15pt; font-family: 宋体; background-color: rgb(255, 255, 255); background-position: initial initial; background-repeat: initial initial;">点击“</span><span style="color: rgb(79, 129, 189); font-weight: bold; font-size: 15pt; font-family: 宋体; background-color: rgb(255, 255, 255); background-position: initial initial; background-repeat: initial initial;"></span><span style="color: rgb(62, 62, 62); font-size: 15pt; font-family: 宋体; background-color: rgb(255, 255, 255); background-position: initial initial; background-repeat: initial initial;">”关注我们，每日分享维修知识、医疗器械资讯信息！</span></p><p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; max-width: 100%; min-height: 1.5em; white-space: pre-wrap; line-height: 2em; color: rgb(62, 62, 62); font-family: 宋体; background-color: rgb(255, 255, 255); word-wrap: break-word !important;"><br  /></p><p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; max-width: 100%; min-height: 1.5em; white-space: pre-wrap; line-height: 2em; color: rgb(62, 62, 62); font-family: 宋体; background-color: rgb(255, 255, 255); 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><p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; max-width: 100%; min-height: 1.5em; white-space: pre-wrap; line-height: 2em; color: rgb(62, 62, 62); font-family: 宋体; background-color: rgb(255, 255, 255); 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><p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; max-width: 100%; min-height: 1.5em; white-space: pre-wrap; line-height: 2em; color: rgb(62, 62, 62); font-family: 宋体; background-color: rgb(255, 255, 255); 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><p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; max-width: 100%; min-height: 1.5em; white-space: pre-wrap; line-height: 2em; color: rgb(62, 62, 62); font-family: 宋体; background-color: rgb(255, 255, 255); word-wrap: break-word !important;"><br style="max-width: 100%; word-wrap: break-word !important;"  /></p><p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; max-width: 100%; min-height: 1.5em; white-space: pre-wrap; line-height: 2em; color: rgb(62, 62, 62); font-family: 宋体; background-color: rgb(255, 255, 255); word-wrap: break-word !important;"><span style="">1</span>、技术参数</p><p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; max-width: 100%; min-height: 1.5em; white-space: pre-wrap; line-height: 2em; color: rgb(62, 62, 62); font-family: 宋体; background-color: rgb(255, 255, 255); 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><p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; max-width: 100%; min-height: 1.5em; white-space: pre-wrap; line-height: 2em; color: rgb(62, 62, 62); font-family: 宋体; background-color: rgb(255, 255, 255); word-wrap: break-word !important;">医用：基本与X胶片相仿，常见尺寸为：18”、20”、21”</p><p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; max-width: 100%; min-height: 1.5em; white-space: pre-wrap; line-height: 2em; color: rgb(62, 62, 62); font-family: 宋体; background-color: rgb(255, 255, 255); word-wrap: break-word !important;">普通：常见尺寸为：14”、15”、17”、19”；</p><p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; max-width: 100%; min-height: 1.5em; white-space: pre-wrap; line-height: 2em; color: rgb(62, 62, 62); font-family: 宋体; background-color: rgb(255, 255, 255); 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><p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; max-width: 100%; min-height: 1.5em; white-space: pre-wrap; line-height: 2em; color: rgb(62, 62, 62); font-family: 宋体; background-color: rgb(255, 255, 255); word-wrap: break-word !important;">医用：1MP (1024×1280)</p><p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; max-width: 100%; min-height: 1.5em; white-space: pre-wrap; line-height: 2em; color: rgb(62, 62, 62); font-family: 宋体; background-color: rgb(255, 255, 255); word-wrap: break-word !important;">2MP (1200×1600)</p><p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; max-width: 100%; min-height: 1.5em; white-space: pre-wrap; line-height: 2em; color: rgb(62, 62, 62); font-family: 宋体; background-color: rgb(255, 255, 255); word-wrap: break-word !important;">3MP (1536×2048)</p><p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; max-width: 100%; min-height: 1.5em; white-space: pre-wrap; line-height: 2em; color: rgb(62, 62, 62); font-family: 宋体; background-color: rgb(255, 255, 255); word-wrap: break-word !important;">5MP (2048×2560)</p><p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; max-width: 100%; min-height: 1.5em; white-space: pre-wrap; line-height: 2em; color: rgb(62, 62, 62); font-family: 宋体; background-color: rgb(255, 255, 255); word-wrap: break-word !important;">10MP (4096×2560)</p><p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; max-width: 100%; min-height: 1.5em; white-space: pre-wrap; line-height: 2em; color: rgb(62, 62, 62); font-family: 宋体; background-color: rgb(255, 255, 255); word-wrap: break-word !important;">普通：800×600、1024×768，1280×1204</p><p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; max-width: 100%; min-height: 1.5em; white-space: pre-wrap; line-height: 2em; color: rgb(62, 62, 62); font-family: 宋体; background-color: rgb(255, 255, 255); word-wrap: break-word !important;"><br style="max-width: 100%; word-wrap: break-word !important;"  /></p><p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; max-width: 100%; min-height: 1.5em; white-space: pre-wrap; line-height: 2em; color: rgb(62, 62, 62); font-family: 宋体; background-color: rgb(255, 255, 255); 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><p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; max-width: 100%; min-height: 1.5em; white-space: pre-wrap; line-height: 2em; color: rgb(62, 62, 62); font-family: 宋体; background-color: rgb(255, 255, 255); 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><p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; max-width: 100%; min-height: 1.5em; white-space: pre-wrap; line-height: 2em; color: rgb(62, 62, 62); font-family: 宋体; background-color: rgb(255, 255, 255); word-wrap: break-word !important;">普通：200-300 cd/m2  无特殊要求</p><p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; max-width: 100%; min-height: 1.5em; white-space: pre-wrap; line-height: 2em; color: rgb(62, 62, 62); font-family: 宋体; background-color: rgb(255, 255, 255); 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><p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; max-width: 100%; min-height: 1.5em; white-space: pre-wrap; line-height: 2em; color: rgb(62, 62, 62); font-family: 宋体; background-color: rgb(255, 255, 255); word-wrap: break-word !important;">医用：600:1---1000:1</p><p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; max-width: 100%; min-height: 1.5em; white-space: pre-wrap; line-height: 2em; color: rgb(62, 62, 62); font-family: 宋体; background-color: rgb(255, 255, 255); word-wrap: break-word !important;">普通：300:1--- 400:1</p><p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; max-width: 100%; min-height: 1.5em; white-space: pre-wrap; line-height: 2em; color: rgb(62, 62, 62); font-family: 宋体; background-color: rgb(255, 255, 255); word-wrap: break-word !important;"><br style="max-width: 100%; word-wrap: break-word !important;"  /></p><p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; max-width: 100%; min-height: 1.5em; white-space: pre-wrap; line-height: 2em; color: rgb(62, 62, 62); font-family: 宋体; background-color: rgb(255, 255, 255); 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><p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; max-width: 100%; min-height: 1.5em; white-space: pre-wrap; line-height: 2em; color: rgb(62, 62, 62); font-family: 宋体; background-color: rgb(255, 255, 255); word-wrap: break-word !important;">医用：10 bit--1024灰阶，10bit或12bit（1024--2048灰阶）</p><p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; max-width: 100%; min-height: 1.5em; white-space: pre-wrap; line-height: 2em; color: rgb(62, 62, 62); font-family: 宋体; background-color: rgb(255, 255, 255); word-wrap: break-word !important;">普通： 6bit-64 、 8bit- 256灰阶</p><p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; max-width: 100%; min-height: 1.5em; white-space: pre-wrap; line-height: 2em; color: rgb(62, 62, 62); font-family: 宋体; background-color: rgb(255, 255, 255); word-wrap: break-word !important;">⑥可视角度</p><p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; max-width: 100%; min-height: 1.5em; white-space: pre-wrap; line-height: 2em; color: rgb(62, 62, 62); font-family: 宋体; background-color: rgb(255, 255, 255); word-wrap: break-word !important;">医用：上下/左右均可达到178°超宽视角</p><p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; max-width: 100%; min-height: 1.5em; white-space: pre-wrap; line-height: 2em; color: rgb(62, 62, 62); font-family: 宋体; background-color: rgb(255, 255, 255); word-wrap: break-word !important;">普通：上下视角140°左右，左右视角160°左右</p><p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; max-width: 100%; min-height: 1.5em; white-space: pre-wrap; line-height: 2em; color: rgb(62, 62, 62); font-family: 宋体; background-color: rgb(255, 255, 255); word-wrap: break-word !important;"><br  /></p><p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; max-width: 100%; min-height: 1.5em; white-space: pre-wrap; line-height: 2em; color: rgb(62, 62, 62); font-family: 宋体; background-color: rgb(255, 255, 255); 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><p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; max-width: 100%; min-height: 1.5em; white-space: pre-wrap; line-height: 2em; color: rgb(62, 62, 62); font-family: 宋体; background-color: rgb(255, 255, 255); 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><p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; max-width: 100%; min-height: 1.5em; white-space: pre-wrap; line-height: 2em; color: rgb(62, 62, 62); font-family: 宋体; background-color: rgb(255, 255, 255); word-wrap: break-word !important;">普通：16--5ms左右</p><p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; max-width: 100%; min-height: 1.5em; white-space: pre-wrap; line-height: 2em; color: rgb(62, 62, 62); font-family: 宋体; background-color: rgb(255, 255, 255); word-wrap: break-word !important;"><br  /></p><p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; max-width: 100%; min-height: 1.5em; white-space: pre-wrap; line-height: 2em; color: rgb(62, 62, 62); font-family: 宋体; background-color: rgb(255, 255, 255); word-wrap: break-word !important;">2、功能</p><p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; max-width: 100%; min-height: 1.5em; white-space: pre-wrap; line-height: 2em; color: rgb(62, 62, 62); font-family: 宋体; background-color: rgb(255, 255, 255); word-wrap: break-word !important;"><img id="aimg_MJTMt" class="zoom" width="367" height="247" src="http://www.dododo.com.cn/UploadFile/UploadFile/2012101515354094576.jpg" border="0" src="http://www.dododo.com.cn/UploadFile/UploadFile/2012101515354094576.jpg" style="border: 0px; word-wrap: break-word; cursor: pointer; height: auto !important; visibility: visible !important;"  /></p><p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; max-width: 100%; min-height: 1.5em; white-space: pre-wrap; line-height: 2em; color: rgb(62, 62, 62); font-family: 宋体; background-color: rgb(255, 255, 255); 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><p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; max-width: 100%; min-height: 1.5em; white-space: pre-wrap; line-height: 2em; color: rgb(62, 62, 62); font-family: 宋体; background-color: rgb(255, 255, 255); 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><p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; max-width: 100%; min-height: 1.5em; white-space: pre-wrap; line-height: 2em; color: rgb(62, 62, 62); font-family: 宋体; background-color: rgb(255, 255, 255); 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><p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; max-width: 100%; min-height: 1.5em; white-space: pre-wrap; line-height: 2em; color: rgb(62, 62, 62); font-family: 宋体; background-color: rgb(255, 255, 255); word-wrap: break-word !important;">普通：无</p><p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; max-width: 100%; min-height: 1.5em; white-space: pre-wrap; line-height: 2em; color: rgb(62, 62, 62); font-family: 宋体; background-color: rgb(255, 255, 255); word-wrap: break-word !important;"><br style="max-width: 100%; word-wrap: break-word !important;"  /></p><p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; max-width: 100%; min-height: 1.5em; white-space: pre-wrap; line-height: 2em; color: rgb(62, 62, 62); font-family: 宋体; background-color: rgb(255, 255, 255); word-wrap: break-word !important;">② SBC功能：恒定的亮度调节功能</p><p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; max-width: 100%; min-height: 1.5em; white-space: pre-wrap; line-height: 2em; color: rgb(62, 62, 62); font-family: 宋体; background-color: rgb(255, 255, 255); word-wrap: break-word !important;"><span style=""><img id="aimg_UeHIg" class="zoom" width="418" height="275" src="http://www.dododo.com.cn/UploadFile/UploadFile/2012101515363984762.jpg" border="0" src="http://www.dododo.com.cn/UploadFile/UploadFile/2012101515363984762.jpg" style="border: 0px; word-wrap: break-word; cursor: pointer; height: auto !important; visibility: visible !important;"  /></span></p><p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; max-width: 100%; min-height: 1.5em; white-space: pre-wrap; line-height: 2em; color: rgb(62, 62, 62); font-family: 宋体; background-color: rgb(255, 255, 255); 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><p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; max-width: 100%; min-height: 1.5em; white-space: pre-wrap; line-height: 2em; color: rgb(62, 62, 62); font-family: 宋体; background-color: rgb(255, 255, 255); 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><p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; max-width: 100%; min-height: 1.5em; white-space: pre-wrap; line-height: 2em; color: rgb(62, 62, 62); font-family: 宋体; background-color: rgb(255, 255, 255); word-wrap: break-word !important;">普通：无亮度监测控制动能，亮度衰减够快</p><p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; max-width: 100%; min-height: 1.5em; white-space: pre-wrap; line-height: 2em; color: rgb(62, 62, 62); font-family: 宋体; background-color: rgb(255, 255, 255); word-wrap: break-word !important;"><br style="max-width: 100%; word-wrap: break-word !important;"  /></p><p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; max-width: 100%; min-height: 1.5em; white-space: pre-wrap; line-height: 2em; color: rgb(62, 62, 62); font-family: 宋体; background-color: rgb(255, 255, 255); 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><p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; max-width: 100%; min-height: 1.5em; white-space: pre-wrap; line-height: 2em; color: rgb(62, 62, 62); font-family: 宋体; background-color: rgb(255, 255, 255); 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><p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; max-width: 100%; min-height: 1.5em; white-space: pre-wrap; line-height: 2em; color: rgb(62, 62, 62); font-family: 宋体; background-color: rgb(255, 255, 255); word-wrap: break-word !important;">普通：常规模式</p><p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; max-width: 100%; min-height: 1.5em; white-space: pre-wrap; line-height: 2em; color: rgb(62, 62, 62); font-family: 宋体; background-color: rgb(255, 255, 255); word-wrap: break-word !important;"><br style="max-width: 100%; word-wrap: break-word !important;"  /></p><p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; max-width: 100%; min-height: 1.5em; white-space: pre-wrap; line-height: 2em; color: rgb(62, 62, 62); font-family: 宋体; background-color: rgb(255, 255, 255); word-wrap: break-word !important;">3、认证</p><p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; max-width: 100%; min-height: 1.5em; white-space: pre-wrap; line-height: 2em; color: rgb(62, 62, 62); font-family: 宋体; background-color: rgb(255, 255, 255); word-wrap: break-word !important;">①医疗认证</p><p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; max-width: 100%; min-height: 1.5em; white-space: pre-wrap; line-height: 2em; color: rgb(62, 62, 62); font-family: 宋体; background-color: rgb(255, 255, 255); word-wrap: break-word !important;">医用：FDA510(k)、ISO13485</p><p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; max-width: 100%; min-height: 1.5em; white-space: pre-wrap; line-height: 2em; color: rgb(62, 62, 62); font-family: 宋体; background-color: rgb(255, 255, 255); word-wrap: break-word !important;">普通：无</p><p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; max-width: 100%; min-height: 1.5em; white-space: pre-wrap; line-height: 2em; color: rgb(62, 62, 62); font-family: 宋体; background-color: rgb(255, 255, 255); word-wrap: break-word !important;">②安全认证</p><p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; max-width: 100%; min-height: 1.5em; white-space: pre-wrap; line-height: 2em; color: rgb(62, 62, 62); font-family: 宋体; background-color: rgb(255, 255, 255); word-wrap: break-word !important;">医用：CE、UL、CCC</p><p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; max-width: 100%; min-height: 1.5em; white-space: pre-wrap; line-height: 2em; color: rgb(62, 62, 62); font-family: 宋体; background-color: rgb(255, 255, 255); word-wrap: break-word !important;">普通：CCC 等一些基本标准</p><p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; max-width: 100%; min-height: 1.5em; white-space: pre-wrap; line-height: 2em; color: rgb(62, 62, 62); font-family: 宋体; background-color: rgb(255, 255, 255); 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><p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; max-width: 100%; min-height: 1.5em; white-space: pre-wrap; line-height: 2em; color: rgb(62, 62, 62); font-family: 宋体; background-color: rgb(255, 255, 255); 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。</p><p><br  /></p>