Narita Yoshitaka, Tsukagoshi Shinsuke, Suzuki Masahiro, Miyakita Yasuji, Ohno Makoto, Arita Hideyuki, Saito Yasuo, Kokojima Yoshiyuki, Watanabe Naofumi, Moriyama Noriyuki, Shibui Soichiro
Department of Neurosurgery and Neuro-Oncology, National Cancer Center Hospital, 5-1-1, Tsukiji, Chuo-ku, Tokyo, 104-0045, Japan,
Int J Comput Assist Radiol Surg. 2014 Sep;9(5):905-11. doi: 10.1007/s11548-014-0984-1. Epub 2014 Feb 5.
Many stereoscopic displays require glasses that are awkward or inappropriate for use in a neurosurgical operating room. A glass-free three-dimensional autostereoscopic display (3DAD) monitor was developed and tested for neurosurgical applications.
Our 3DAD system uses images acquired from nine directions projected into the viewer's eyes through 1,280 lenticular lenses (1,280 x 720 pixels). The viewer interprets these as a single stereoscopic image. To evaluate the 3D visualization capabilities of the 3DAD system, 3D images of blood vessels created from brain magnetic resonance angiography were presented to 20 neurosurgeons on both a standard medical two-dimensional (2D) monitor and our 3DAD monitor. Discrimination of the positional relationships for each vessel was recorded. The observers were asked to identify blood vessels located in front of three pairs of points on each image.
The neurosurgeon observers achieved significantly higher correct responses using the 3DAD monitor compared with the 2D monitor (91.7 vs. 56.7 %, p< 0.0001). There were no reports of problems such as eye fatigue or discomfort.
Displaying 3D volume rendered multimodality images with a 3DAD monitor is useful for anatomical discrimination of 3D vessels in MR angiography. This technology may be useful for a wide variety of clinical applications such as rapid and precise diagnosis, surgical simulation, and medical education.
许多立体显示器需要佩戴眼镜，而这些眼镜在神经外科手术室中使用起来既不方便也不合适。我们开发并测试了一种用于神经外科应用的无眼镜三维自动立体显示器（3DAD）监视器。
我们的3DAD系统使用从九个方向获取的图像，通过1280个双凸透镜（1280×720像素）投射到观察者眼中。观察者将这些图像理解为单个立体图像。为了评估3DAD系统的三维可视化能力，将由脑磁共振血管造影创建的血管三维图像分别在标准医学二维（2D）监视器和我们的3DAD监视器上呈现给20位神经外科医生。记录每位医生对每条血管位置关系的辨别情况。要求观察者识别每张图像上位于三对点前方的血管。
与2D监视器相比，使用3DAD监视器时神经外科医生观察者的正确反应率显著更高（91.7%对56.7%，p<0.0001）。没有关于眼睛疲劳或不适等问题的报告。
使用3DAD监视器显示三维容积渲染的多模态图像，有助于在磁共振血管造影中对三维血管进行解剖辨别。这项技术可能对多种临床应用有用，如快速准确的诊断、手术模拟和医学教育。
