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1. WO2004004539 - APPARATUS FOR MONITORING CHF PATIENTS USING BIO-IMPEDANCE TECHNIQUE

Publication Number WO/2004/004539
Publication Date 15.01.2004
International Application No. PCT/IL2003/000556
International Filing Date 03.07.2003
Chapter 2 Demand Filed 28.01.2004
IPC
A61B 5/053 2006.01
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
BDIAGNOSIS; SURGERY; IDENTIFICATION
5Measuring for diagnostic purposes; Identification of persons
05Measuring for diagnosis by means of electric currents or magnetic fields
053Measuring electrical impedance or conductance of a portion of the body
CPC
A61B 5/0044
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
BDIAGNOSIS; SURGERY; IDENTIFICATION
5Detecting, measuring or recording for diagnostic purposes
0033Features or image-related aspects of imaging apparatus classified in A61B5/00, e.g. for MRI, optical tomography or impedance tomography apparatus; arrangements of imaging apparatus in a room
004adapted for image acquisition of a particular organ or body part
0044for the heart
A61B 5/0536
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
BDIAGNOSIS; SURGERY; IDENTIFICATION
5Detecting, measuring or recording for diagnostic purposes
05Detecting, measuring or recording for diagnosis by means of electric currents or magnetic fields; ; Measuring using microwaves or radiowaves
053Measuring electrical impedance or conductance of a portion of the body
0536Impedance imaging, e.g. by tomography
A61B 5/7289
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
BDIAGNOSIS; SURGERY; IDENTIFICATION
5Detecting, measuring or recording for diagnostic purposes
72Signal processing specially adapted for physiological signals or for diagnostic purposes
7271Specific aspects of physiological measurement analysis
7285for synchronising or triggering a physiological measurement or image acquisition with a physiological event or waveform, e.g. an ECG signal
7289Retrospective gating, i.e. associating measured signals or images with a physiological event after the actual measurement or image acquisition, e.g. by simultaneously recording an additional physiological signal during the measurement or image acquisition
A61B 6/541
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
BDIAGNOSIS; SURGERY; IDENTIFICATION
6Apparatus for radiation diagnosis, e.g. combined with radiation therapy equipment
54Control of apparatus or devices for radiation diagnosis
541involving acquisition triggered by a physiological signal
Applicants
  • TEL-AVIV UNIVERSITY FUTURE TECHNOLOGY DEVELOPMENT L.P. C/O TAU FUTURE TECHNOLOGY MANAGEMENT LTD. C/OTHE TEL-AVIV UNIVERSITY ECONOMIC CORPORATION LTD. [IL]/[IL] (AllExceptUS)
  • ARAD (ABBOUD), Shimon [IL]/[IL] (UsOnly)
Inventors
  • ARAD (ABBOUD), Shimon
Agents
  • FENSTER, Paul
Priority Data
10/189,16103.07.2002US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) APPARATUS FOR MONITORING CHF PATIENTS USING BIO-IMPEDANCE TECHNIQUE
(FR) APPAREIL PERMETTANT DE SURVEILLER DES PATIENTS SOUFFRANT D'INSUFFISANCE CARDIAQUE GLOBALE PAR UNE TECHNIQUE DE BIO-IMPEDANCE
Abstract
(EN)
An apparatus and method for making corrected impedance images of the chest includes an impedance imaging data acquisition system (609,611) which acquires impedance imaging data of the chest, an electrocardiograph (618) which obtains electrocardiograph data of the patient, and a data analyzer (616) which analyzes the electrocardiograph data to obtain information about breathing parameters at the time the impedance imaging data was acquired. The data analyzer reconstructs, from the imaging data and the information about breathing parameters, at least one impedance image of the chest with reduced sensitivity to breathing parameters.
(FR)
La présente invention concerne un procédé qui permet de produire des images d'impédance de la poitrine, selon lequel : on acquiert des données électriques de la poitrine ; on obtient des données électrocardiographiques d'un patient ; on analyse les données électrocardiographiques afin d'obtenir des informations concernant les paramètres respiratoires au moment où les données électriques ont été acquises ; et on reconstruit au moins une image d'impédance de la poitrine à partir des données électriques et des informations relatives aux paramètres respiratoires, lesdites informations relatives aux paramètres respiratoires permettant de réduire la sensibilité d'au moins une image d'impédance aux paramètres respiratoires.
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