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首页> 美国卫生研究院文献>Journal of Digital Imaging >Three-dimensional image display without special eyeglasses: observation of magnetic resonance angiography using the stereoscopic liquid crystal display
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Three-dimensional image display without special eyeglasses: observation of magnetic resonance angiography using the stereoscopic liquid crystal display

机译：无需特殊眼镜的三维图像显示：使用立体液晶显示器观察磁共振血管造影

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The authors have developed a new stereoscopic liquid crystal display that provides real-time 3-dimensional image viewing without special eyeglasses. The device consists of 3 major parts: (1) an image display composed of a 10.4-inch color liquid crystal plate with a resolution of 640 x 480, (2) an automatic head tracking system, and (3) a special backlight unit for the right and left eyes. Eight radiologists interpreted 60 cases of magnetic resonance angiography (29 cases of cerebrovascular disease and 31 normal cases) to compare film display and the liquid crystal display (ie, pseudo 3-dimensional display and true 3-dimensional display). Using a continuously distributed scale ranging from 0% to 100%, the observers ranked their confidence levels in determining the presence or absence of steno-occlusive disease, aneurysm, and arteriovenous malformation (AVM) and their locations. For statistical evaluation, receiver operating characteristic (ROC) analysis and Brier score were used. For detecting AVM, film reading showed a significantly higher value in the area under the binormal ROC curve (Az) than did pseudo-3-dimensional display (P < .05). Excluding this, however, no significant difference existed in Az values among the 3 viewing methods. Also, there was no significant difference in Brier score between not only the stereoscopic view and nonstereoscopic view groups, but also the senior and junior groups. Subjective estimation of true 3-dimensional display showed that vessels were more distinguishable with less eye fatigue compared with stereoscopic film reading. The stereoscopic liquid crystal display provided almost equal efficacy to film reading; however, the short optimum distance for observation and the low resolution should be improved.
机译：作者开发了一种新型的立体液晶显示器，无需特殊眼镜即可提供实时3D图像查看。该设备包括3个主要部分：（1）由分辨率为640 x 480的10.4英寸彩色液晶板组成的图像显示器；（2）自动头部跟踪系统；（3）专用的背光单元左右眼。八名放射科医生对60例磁共振血管造影（29例脑血管疾病和31例正常病例）进行了解释，以比较胶片显示和液晶显示（即伪3维显示和真3维显示）。使用从0％到100％的连续分布范围，观察者对他们在确定是否存在狭窄闭塞性疾病，动脉瘤和动静脉畸形（AVM）及其位置时的置信度进行了排名。为了进行统计评估，使用了接收器工作特性（ROC）分析和Brier评分。为了检测AVM，胶片读取显示的双正态ROC曲线（Az）下的区域的值明显高于伪3D显示（P <.05）。但是，除此以外，三种观看方法之间的Az值均不存在显着差异。此外，不仅立体观察组和非立体观察组之间的Brier得分也没有显着差异，而高级组和初级组也没有显着差异。真实3维显示的主观估计显示，与立体影片阅读相比，血管更容易分辨，眼睛疲劳更少。立体液晶显示器提供了与电影阅读几乎相同的功效。但是，应缩短观察的最佳距离和降低分辨率。

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