Processing

Please wait...

Settings

Settings

Goto Application

1. WO2020198592 - RECONSTRUCTING CARDIAC FREQUENCY PHENOMENA IN ANGIOGRAPHIC DATA

Publication Number WO/2020/198592
Publication Date 01.10.2020
International Application No. PCT/US2020/025229
International Filing Date 27.03.2020
IPC
A61B 6/00 2006.01
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
BDIAGNOSIS; SURGERY; IDENTIFICATION
6Apparatus for radiation diagnosis, e.g. combined with radiation therapy equipment
A61B 5/00 2006.01
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
BDIAGNOSIS; SURGERY; IDENTIFICATION
5Measuring for diagnostic purposes; Identification of persons
A61B 5/021 2006.01
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
BDIAGNOSIS; SURGERY; IDENTIFICATION
5Measuring for diagnostic purposes; Identification of persons
02Measuring pulse, heart rate, blood pressure or blood flow; Combined pulse/heart-rate/blood pressure determination; Evaluating a cardiovascular condition not otherwise provided for, e.g. using combinations of techniques provided for in this group with electrocardiography; Heart catheters for measuring blood pressure
021Measuring pressure in heart or blood vessels
G01N 21/31 2006.01
GPHYSICS
01MEASURING; TESTING
NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
21Investigating or analysing materials by the use of optical means, i.e. using infra-red, visible or ultra-violet light
17Systems in which incident light is modified in accordance with the properties of the material investigated
25Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
31Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
CPC
A61B 6/504
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
BDIAGNOSIS; SURGERY; IDENTIFICATION
6Apparatus for radiation diagnosis, e.g. combined with radiation therapy equipment
50Clinical applications
504involving diagnosis of blood vessels, e.g. by angiography
A61B 6/5217
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
BDIAGNOSIS; SURGERY; IDENTIFICATION
6Apparatus for radiation diagnosis, e.g. combined with radiation therapy equipment
52Devices using data or image processing specially adapted for radiation diagnosis
5211involving processing of medical diagnostic data
5217extracting a diagnostic or physiological parameter from medical diagnostic data
A61B 6/5288
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
BDIAGNOSIS; SURGERY; IDENTIFICATION
6Apparatus for radiation diagnosis, e.g. combined with radiation therapy equipment
52Devices using data or image processing specially adapted for radiation diagnosis
5288involving retrospective matching to a physiological signal
G06T 11/006
GPHYSICS
06COMPUTING; CALCULATING; COUNTING
TIMAGE DATA PROCESSING OR GENERATION, IN GENERAL
112D [Two Dimensional] image generation
003Reconstruction from projections, e.g. tomography
006Inverse problem, transformation from projection-space into object-space, e.g. transform methods, back-projection, algebraic methods
G06T 2211/404
GPHYSICS
06COMPUTING; CALCULATING; COUNTING
TIMAGE DATA PROCESSING OR GENERATION, IN GENERAL
2211Image generation
40Computed tomography
404Angiography
Applicants
  • BUTLER, William, E. [US]/[US]
Inventors
  • BUTLER, William, E.
Agents
  • EFFLER, Janet, C.
Priority Data
62/824,58227.03.2019US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) RECONSTRUCTING CARDIAC FREQUENCY PHENOMENA IN ANGIOGRAPHIC DATA
(FR) RECONSTRUCTION DE PHÉNOMÈNES DE FRÉQUENCE CARDIAQUE DANS DES DONNÉES ANGIOGRAPHIQUES
Abstract
(EN)
Techniques are provided for reconstructing cardiac frequency phenomena from a sequence of angiographic images, i.e., two-dimensional projection images acquired at faster than cardiac rate (greater than two-fold), and analyzed to provide a spatiotemporal reconstruction of moving vascular pulse waves according to that projection. In aspects, a cardiac frequency bandpass filter and/or a Eulerian magnification may be applied to the angiographic data to output the spatiotemporal reconstruction of cardiac frequency angiographic phenomena.
(FR)
L'invention concerne des techniques pour reconstruire des phénomènes de fréquence cardiaque à partir d'une séquence d'images angiographiques, c'est-à-dire des images de projection bidimensionnelles acquises à un rythme cardiaque plus rapide (supérieur au double), et analysées pour fournir une reconstruction spatio-temporelle d'ondes d'impulsion vasculaire en mouvement en fonction de cette projection. Selon certains aspects, un filtre passe-bande de fréquence cardiaque et/ou un agrandissement eulérien peuvent être appliqués aux données angiographiques pour délivrer en sortie la reconstruction spatio-temporelle de phénomènes angiographiques de fréquence cardiaque.
Latest bibliographic data on file with the International Bureau