JPWO2021198340A5

JPWO2021198340A5 -

Info

Publication number: JPWO2021198340A5
Application number: JP2022559896A
Authority: JP
Publication date: 2023-07-28
Anticipated expiration: 2041-03-31

Claims

a probe comprising ultrasound detection means and at least one electrode for use in electrocardiogram (ECG) measurements;
a controller operably coupled to the probe , the controller storing atlas data sets storing reference ultrasound data associated with each of a plurality of possible positions of the probe relative to the body; a data store storing a plurality of reference target electrode positions relative to the body for measurement;
with
The controller controls the ultrasound detection means to acquire ultrasound data, and based on the acquired ultrasound data and based on reference to the atlas data set, a reference electrode position. configured in at least one mode of operation to perform a location guidance function that generates guidance information to a user for placing the probe on one or more of the
medical detection system.

the position guidance function generates guidance information to guide the user to place the probe within a predefined set of reference electrode positions to obtain a predefined set of ECG measurements;
The medical detection system of claim 1.

the predetermined set of reference electrode positions having a defined order such that the guidance information guides the user through a defined sequence of reference electrode positions having a defined order;
3. The medical detection system of claim 2.

the controller further controls acquisition of ECG measurement data using at least one ECG electrode of the probe when the probe is positioned at each of one or more target locations;
4. A medical detection system according to any one of claims 1-3.

The controller further identifies one or more anatomical parameters related to the heart based on the acquired ECG measurement data for each of the one or more target locations.
5. The medical detection system of claim 4.

At least one static ECG for static mounting at a location on the body of a subject for a medical detection system to electrically couple to at least one ECG electrode of the probe for performing ECG measurements. further comprising an electrode;
optionally, at least one said static ECG electrode is integrated into a body-worn unit;
6. A medical detection system according to any one of claims 1-5.

The position guidance function is based at least in part on acquiring ultrasound data representative of an area including at least a portion of the patient's ribs, and wherein the atlas data set includes reference ultrasound data associated with the ribs for different locations. include,
7. A medical detection system according to any one of claims 1-6.

The position guidance function is based at least in part on acquiring ultrasound data of the heart to identify positional offsets of the probe with respect to one or more of target ECG electrode positions, preferably based on atlas data associated with the
wherein the acquired ultrasound data comprises ultrasound image data, the medical detection system stores a reference ultrasound image view associated with each of the subject ECG electrode locations, and the image registration step comprises: performing a registration between the acquired ultrasound image data and the reference ultrasound image view for the position;
8. A medical detection system according to any one of claims 1-7.

The position guidance function has two modes:
a first mode wherein said ultrasound detection means is controlled to acquire ultrasound data at a first depth level within said body to acquire data representative of at least a rib region of a subject; a first mode, wherein the positional guidance is based on atlas data associated with rib position;
a second mode, wherein the ultrasound detection means is controlled to acquire ultrasound data at a second deeper depth level within the body to acquire ultrasound data representative of the heart; a second mode, preferably wherein said positional guidance is based on an image registration process based on atlas data associated with said heart;
having a
9. A medical detection system according to any one of claims 1-8.

The controller repeatedly performs a mode selection step, and the position guidance function is activated when at least a portion of the reference ultrasound image view for a given target location is within the field of view of the acquired ultrasound data. , operating in said second mode, wherein said position guidance function is activated if no portion of said reference ultrasound image view for said target location in question is observed within the field of view of said acquired ultrasound data. , operating in said first mode;
10. Medical detection system according to claim 9 when dependent on claim 8.

A medical detection system guides the user to position the probe at a first set of target electrode locations to perform a first set of ECG measurements, and a medical detection system guides the user to position the probe at a first set of target electrode locations to perform a first set of ECG measurements; adjusting the stored target electrode positions for a second set of ECG measurements based on the obtained ECG measurement data;
11. A medical detection system according to any one of claims 1-10.

wherein said controller adopts at least one mode of operation to acquire ultrasound data continuously or at regular intervals, and said position guidance function comprises acquired ultrasound data and generated position guidance information; including continuous or iterative feedback loops between
12. A medical detection system according to any one of claims 1-11.

A method for guiding a user in placing a medical sensing probe relative to the body of a subject, comprising:
said medical sensing probe comprises ultrasound sensing means and at least one ECG electrode;
said method comprising:
acquiring ultrasound data using the ultrasound detection means;
a controller accessing an atlas data set storing reference ultrasound data associated with each of a plurality of possible positions of the medical sensing probe relative to the body;
the controller accessing a data store storing a plurality of reference electrode positions relative to the body for different ECG measurements;
Guidance information to a user for positioning the medical sensing probe at one or more of the reference electrode locations based on the acquired ultrasound data and based on reference to the atlas data set. the controller performing a generated positional guidance function;
A method.

the position guidance function generates guidance information to guide the user to position the medical sensing probe through a predefined set of reference electrode positions to obtain a predefined set of ECG measurements;
14. The method of claim 13.