公开(公告)号：US20130211217A1

公开(公告)日：2013-08-15

申请号：US13746880

申请日：2013-01-22

Applicant: FUJIFILM Corporation

Inventor： Hiroshi YAMAGUCHI ,  Takaaki SAITO ,  Takayuki IIDA

IPC: A61B1/06 ,  A61B5/1455 ,  A61B5/145 ,  A61B1/04 ,  A61B1/00 ,  A61B1/005 ,  A61B5/1459 ,  A61B5/00

CPC classification number: A61B1/0638 ,  A61B1/00009 ,  A61B1/00039 ,  A61B1/00045 ,  A61B1/0005 ,  A61B1/0052 ,  A61B1/04 ,  A61B1/0646 ,  A61B1/0653 ,  A61B5/14546 ,  A61B5/14551 ,  A61B5/1459 ,  A61B5/7278 ,  A61B5/742 ,  A61B2562/046

Abstract: First and second white light is generated by excitations of phosphors with first and second laser beams having center wavelengths of 473 nm and 445 nm, respectively. The first and second white light is applied, in respective frames, sequentially to a region of interest in a subject. A color image sensor images the region of interest in the each frame. Based on a shift amount, calculated from green signals of first and second frames, between images, an image of a blue signal of the first frame is moved to be aligned with an image of a green signal and an image of a red signal of the second frame. After the alignment, an oxygen saturation image representing an oxygen saturation level of hemoglobin in blood is produced from the blue signal of the first frame and green and red signals of the second frame, and displayed on a display.

Abstract translation: 第一和第二白光通过具有分别具有473nm和445nm的中心波长的第一和第二激光束的荧光体的激发产生。 第一和第二白光在相应的帧中顺序地施加到被摄体中的感兴趣区域。 彩色图像传感器在每个帧中成像感兴趣的区域。 基于从第一帧和第二帧的绿色信号在图像之间计算的移位量，移动第一帧的蓝色信号的图像以与绿色信号的图像和红色信号的图像对准 第二帧。 在对准之后，从第一帧的蓝色信号和第二帧的绿色和红色信号产生表示血液中血红蛋白的氧饱和度水平的氧饱和度图像，并显示在显示器上。