公开(公告)号：US20240081766A1

公开(公告)日：2024-03-14

申请号：US17767756

申请日：2020-10-13

Applicant: KONINKLIJKE PHILIPS N.V.

Inventor： Bernardus Hendrikus WIlhelmus HENDRIKS ,  Maria-Louisa IZAMIS ,  Caifeng SHAN

IPC: A61B6/00 ,  G16H30/40

CPC classification number: A61B6/5217 ,  A61B6/4417 ,  A61B6/463 ,  A61B6/481 ,  A61B6/507 ,  A61B6/5247 ,  A61B6/5264 ,  G16H30/40

Abstract: Perfusion angiography combined with photoplethysmography imaging for peripheral vascular disease assessment A device (13) and method for performing perfusion imaging receive image sequences that are acquired simultaneously by an X-ray imaging apparatus (2) and by a photoplethysmography imaging apparatus (3). When temporally aligned, changes in the perfusion states of a perfused organic tissue over time are extracted from the two image sequences and an image is generated for display on a display unit (5) which indicates the changes in the perfusion states at various locations of the perfused organ tissue, thereby capturing both deep organ tissue and superficial organ tissue perfusion properties. A diminution in an image signal strength in the photoplethysmography images caused by a passage of a bolus comprising a previously administered contrast agent (10) can be used to align the two concurrently acquired image sequences in time.

公开(公告)号：US20230181148A1

公开(公告)日：2023-06-15

申请号：US17919860

申请日：2021-04-21

Applicant: KONINKLIJKE PHILIPS N.V.

Inventor： Aydin MERT ,  Joanneke Gerrigje GROEN ,  Frank VERBAKEL ,  Maria-Louisa IZAMIS ,  Marc Godfriedus Marie NOTTEN

IPC: A61B8/06 ,  A61B8/08

CPC classification number: A61B8/06 ,  A61B8/0841 ,  A61B8/0891

Abstract: A method (100) for visualizing a section of a patient's vascular system (155) with an ultrasound image processing system (3) is disclosed. The method comprises receiving (103) ultrasound data generated by an ultrasound probe (10) being displaced across a part of the patients anatomy (150) containing the section of the patients vascular system, said ultrasound data comprising image data and Doppler data; generating (107) ultrasound images (170) from said image data, each ultrasound image corresponding to a subsection of the patients vascular system having a determined location within the patients vascular system and combining (109) said ultrasound images into a map (180) of said section of the patients vascular system; processing (111) the received Doppler data to obtain blood flow characteristics for the section of the patients vascular system; identifying (113) landmarks within the section of the patients vascular system based on the obtained blood flow characteristics; annotating (115) said map with said landmark identifications (181, 183); and generating (117) an output signal comprising said annotated map. Also disclosed are a computer program product and ultrasound image processing system for implementing this method.