SUZHOU RAINMED MEDICAL TECHNOLOGY CO., LTD.;苏州润迈德医疗科技有限公司
发明人:
HUO, Yunfei,霍云飞,LIU, Guangzhi,刘广志,WU, Xingyun,吴星云
申请号：
CNCN2019/118058
公开号：
WO2020/098705A1
申请日:
2019.11.13
申请国别(地区):
CN
年份:
2020
代理人:
摘要：
A method and device for obtaining vascular assessment parameters in resting state on the basis of an angiographic image. The method for obtaining vascular assessment parameters in resting state on the basis of an angiographic image comprises: obtaining the real-time pressure P a at the entrance of the coronary artery in resting state to obtain a P a-t pressure waveform in a time domain (S100)； performing three-dimensional modeling on a blood vessel segment of interest in a two-dimensional angiographic image of the coronary artery under angiography to obtain a three-dimensional blood vessel mesh model (S200)； obtaining the real-time blood flow velocity v in the three-dimensional blood vessel mesh model to obtain a v-t velocity waveform (S300)； performing conversion to obtain a v resting-t velocity waveform in resting state； obtaining a ΔP resting-t pressure drop waveform from the entrance of the coronary artery to the distal end of coronary artery stenosis in the time domain by means of Fourier transform and inverse Fourier transform； and obtaining coronary artery vascular assessment parameters in resting state. The method and device implement measurement of coronary artery vascular assessment parameters during diastole, and then implement filtering of interference data by means of Fourier transform, thereby improving the accuracy of measurement of the coronary artery vascular assessment parameters.La présente invention concerne un procédé et un dispositif d'obtention de paramètres d'évaluation vasculaire à l'état de repos sur la base d'une image angiographique. Le procédé d'obtention de paramètres d'évaluation vasculaire à l'état de repos sur la base d'une image angiographique comprend : l'obtention de la pression en temps réel Pa à l'entrée de l'artère coronaire à l'état de repos pour obtenir une forme d'onde de pression Pa-t dans un domaine temporel (S100) ； la réalisation de la modélisation tridimensionnelle d'un segment d'intérêt de vaisseau sanguin dans une ima
