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1. (WO2017188079) TRACKING OBJECT RECOGNITION SIMULATOR OR MARKER RECOGNITION SIMULATOR, MOVING BODY TRACKING DEVICE, AND IRRADIATION SYSTEM

Pub. No.:    WO/2017/188079    International Application No.:    PCT/JP2017/015682
Publication Date: Fri Nov 03 00:59:59 CET 2017 International Filing Date: Thu Apr 20 01:59:59 CEST 2017
IPC: A61N 5/10
A61B 6/00
A61B 6/03
Applicants: HITACHI, LTD.
株式会社日立製作所
NATIONAL UNIVERSITY CORPORATION HOKKAIDO UNIVERSITY
国立大学法人北海道大学
Inventors: HIRAYAMA Shusuke
平山 嵩祐
UMEKAWA Toru
梅川 徹
UMEGAKI Kikuo
梅垣 菊男
MIYAMOTO Naoki
宮本 直樹
YAMADA Takahiro
山田 貴啓
FUJII Yusuke
藤井 祐介
Title: TRACKING OBJECT RECOGNITION SIMULATOR OR MARKER RECOGNITION SIMULATOR, MOVING BODY TRACKING DEVICE, AND IRRADIATION SYSTEM
Abstract:
Water equivalent thickness information for the inside of a subject (302) is determined from a CT image of the subject (302), and the possibility of recognizing a marker (304) and an X-ray imaging condition whereby the marker (304) can be recognized are computed on the basis of the calculated water equivalent thickness information in a computational processing device and displayed in a display device. An estimated movement range of the marker (304) is inputted, the water equivalent thickness information for the inside of the subject (302) is determined and a degree of recommendation of a marker (304) insertion position is calculated in the computational processing device and displayed in the display device. Through this configuration, a standard for an appropriate imaging condition for tracking a tracking object can be calculated at a pre-rehearsal stage, and the adoption rate of a marker used in tracking a moving body can be enhanced.