发明名称 |
OPTICAL COHERENCE TOMOGRAPHY DEVICE AND CONTROL PROGRAM |
摘要 |
An optical coherence tomography device includes an OCT optical system; a processor. The processor executes: an image generation processing of processing first OCT signals, and generating, based on the first OCT signals, a three-dimensional motion contrast image which is obtained by imaging a moving object in the scanning position; a Doppler shift detection processing of detecting Doppler shift in a scanning position specified on the three-dimensional motion contrast image, the plurality of second OCT signals being detected at timings different from the timings when the plurality of first OCT signals are detected; and a velocity obtaining processing of obtaining an absolute velocity of the moving object based on the Doppler shift detected by the Doppler shift detection processing and a three-dimensional structure of the test subject obtained from the three-dimensional motion contrast image generated by the image generation processing. |
申请公布号 |
US2016150954(A1) |
申请公布日期 |
2016.06.02 |
申请号 |
US201514955579 |
申请日期 |
2015.12.01 |
申请人 |
NIDEK CO., LTD. |
发明人 |
FURUUCHI Yasuhiro;HANEBUCHI Masaaki;ENDO Masakazu;NAMIKI Hajime;TAKENO Naoki |
分类号 |
A61B3/10;A61B3/12;A61B3/00;G01B9/02 |
主分类号 |
A61B3/10 |
代理机构 |
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代理人 |
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主权项 |
1. An optical coherence tomography device comprising:
an OCT optical system including a scanner configured to scan a test subject by measurement light, the OCT optical system being configured to detect an OCT signal generated based on the measurement light and reference light corresponding to the measurement light; a processor; and memory storing instructions, when executed by the processor, causing the optical coherence tomography device to execute: an image generation processing of processing a plurality of first OCT signals, which are temporally different from each other with respect to a same position on the test subject, and generating, based on the plurality of first OCT signals, a three-dimensional motion contrast image, which is obtained by imaging distribution of a moving object in a depth direction in each of the scanning position; a Doppler shift detection processing of processing a plurality of second OCT signals which are temporally different from each other with respect to the same position on the test subject, and detecting Doppler shift in a depth direction in a scanning position specified on the three-dimensional motion contrast image, the plurality of second OCT signals being detected at timings different from the timings when the plurality of first OCT signals are detected; and a velocity obtaining processing of obtaining an absolute velocity of the moving object based on the Doppler shift detected by the Doppler shift detection processing and a three-dimensional structure of the test subject obtained from the three-dimensional motion contrast image generated by the image generation processing. |
地址 |
Gamagori-shi JP |