# US 11,443,425 B2 · Fast anatomical mapping (FAM) reconstruction using surface update restrictions

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- Number: US 11,443,425 B2
- Document ID: US11443425B2
- Status: Granted
- Kind: B2
- Application number: 16/852,803
- Filed: 2020-04-20
- Published: 2021-10-21
- Granted: 2022-09-13
- Earliest claimed: 2020-04-20
- Assignees: Biosense Webster (Israel) Ltd.
- Applicants: Biosense Webster (Israel) Ltd.
- Inventors: Sigal Altman; Fady Massarwa
- Web page: https://patentgrep.com/patent/US11443425B2

## CPC

- G06T 7/0012: {Biomedical image inspection}
- G06T 19/20: Editing of three-dimensional [3D] images, e.g. changing shapes or colours, aligning objects or positioning parts
- A61B 5/339: Displays specially adapted therefor
- A61B 5/343: Potential distribution indication
- A61B 5/367: Electrophysiological study [EPS], e.g. electrical activation mapping or electro-anatomical mapping
- A61B 5/287: Holders for multiple electrodes, e.g. electrode catheters for electrophysiological study [EPS]
- G06T 2200/24: involving graphical user interfaces [GUIs]
- G06T 2207/30048: Heart; Cardiac
- G06T 2207/30101: Blood vessel; Artery; Vein; Vascular
- G06T 2210/41: Medical
- G06T 2210/56: Particle system, point based geometry or rendering
- G06T 2219/2021: Shape modification
- G06T: IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- A61B: DIAGNOSIS; SURGERY; IDENTIFICATION (usefulness limited to only animals A61D)

## Abstract

A method includes presenting, on a display, an electroanatomical (EA) map of a surface of a cavity of an organ. Input is received from a user, and, in response to the user input, a region of the EA map is locked to subsequent updates.

## Claims

### Claim 1

A method for fast anatomical mapping reconstruction, the method comprising:
presenting, on a display, an electroanatomical (EA) map of a surface of a cavity of an organ;
receiving input from a user; and
in response to the user input, locking a region of the EA map to subsequent updates, wherein locking the region comprises preventing subsequent updates in prespecified proximity of an anatomical feature in the EA map and wherein the EP map comprise an EA map of the left atrium, and wherein the anatomical feature is a pulmonary vein.

### Claim 2 (depends on 1)

The method according to claim 1, wherein locking the region comprises preventing subsequent manual editing of the EA map.

### Claim 3 (depends on 1)

The method according to claim 1, wherein locking the region comprises ignoring subsequently acquired data points belonging to the region.

### Claim 4 (depends on 1)

The method according to claim 1, wherein locking the region is performed in response to identifying that data points in the region were obtained by a probe while applying excessive force to the surface.

### Claim 5 (depends on 1)

The method according to claim 1, and comprising manually editing unlocked regions of the EA map to remove irrelevant data points therein.

### Claim 6 (depends on 1)

The method according to claim 1, and comprising:
unlocking the locked region;
manually editing the unlocked region of the EA map to remove irrelevant data points therein; and
re-locking the manually edited region.

### Claim 7

A system for fast anatomical mapping reconstruction, the system comprising:
a display, which is configured to present an electroanatomical (EA) map of a surface of a cavity of an organ; and
a processor, which is configured to receive input from a user, and, in response to the user input, to lock a region of the EA map to subsequent updates, wherein the processor is configured to lock the region by preventing subsequent updates in prespecified proximity of an anatomical feature in the EA map and wherein the EP map comprise an EA map of the left atrium, and wherein the anatomical feature is a pulmonary vein.

### Claim 8 (depends on 7)

The system according to claim 7, wherein the processor is configured to lock the region by preventing subsequent manual editing of the EA map.

### Claim 9 (depends on 7)

The system according to claim 7, wherein the processor is configured to lock the region by ignoring subsequently acquired data points belonging to the region.

### Claim 10 (depends on 7)

The system according to claim 7, wherein the processor is configured to lock the region in response to identifying that data points in the region were obtained by a probe while applying excessive force to the surface.

### Claim 11 (depends on 7)

The system according to claim 7, wherein the processor is configured to receive further user input that manually edits unlocked regions of the EA map to remove irrelevant data points therein.

### Claim 12 (depends on 7)

The system according to claim 7, wherein the processor is configured to:
unlock the locked region;
receive further user input that manually edits the unlocked region of the EA map to remove irrelevant data points therein; and
re-lock the manually edited region.