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1. (WO2017033671) BLOOD FLOW MEASUREMENT DEVICE

Pub. No.:    WO/2017/033671    International Application No.:    PCT/JP2016/072436
Publication Date: Fri Mar 03 00:59:59 CET 2017 International Filing Date: Sat Jul 30 01:59:59 CEST 2016
IPC: A61B 3/10
A61B 3/12
A61B 5/026
A61B 5/0285
Applicants: TOPCON CORPORATION
株式会社トプコン
Inventors: NAKAMURA,Shunsuke
中村 俊輔
SAKAI,Jun
酒井 潤
Title: BLOOD FLOW MEASUREMENT DEVICE
Abstract:
An embodiment of the present invention is a blood flow measurement device which generates blood flow information on the basis of data obtained by using OCT to repeatedly scan a cross-section of interest that intersects a blood vessel in the ocular fundus, and which includes a data acquisition unit, a first calculation unit, a second calculation unit, and a blood flow information generation unit. The data acquisition unit scans four or more cross-sections intersecting the blood vessel. The first calculation unit analyzes a first data group and a second data group from among the four or more sets of data corresponding to the four or more cross-sections acquired by the data acquisition unit and obtains a first orientation angle and a second orientation angle for the blood vessel. The second calculation unit obtains the blood vessel orientation angle in the cross-section of interest on the basis of the first orientation angle and the second orientation angle. The blood flow information generation unit generates blood flow information on the basis of the data acquired by repeatedly scanning the cross-section of interest and the orientation angle obtained by the second calculation unit.