# US 9,517,040 B2 · Method and system for providing information from a patient-specific model of blood flow

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- Number: US 9,517,040 B2
- Document ID: US9517040B2
- Status: Granted
- Kind: B2
- Application number: 14/177,630
- Filed: 2014-02-11
- Published: 2014-10-02
- Granted: 2016-12-13
- Earliest claimed: 2012-05-14
- Assignees: HeartFlow, Inc.
- Applicants: HeartFlow, Inc.
- Inventors: Gregory R. Hart; John H. Stevens
- Web page: https://patentgrep.com/patent/US9517040B2

## CPC

- A61B 34/10: Computer-aided planning, simulation or modelling of surgical operations
- A61B 5/02007: {Evaluating blood vessel condition, e.g. elasticity, compliance}
- A61B 5/021: Measuring pressure in heart or blood vessels
- A61B 5/026: Measuring blood flow {(A61B3/1233, A61B3/1241 take precedence)}
- A61B 5/0263: {using NMR}
- A61B 5/7275: {Determining trends in physiological measurement data; Predicting development of a medical condition based on physiological measurements, e.g. determining a risk factor}
- A61B 5/7278: {Artificial waveform generation or derivation, e.g. synthesizing signals from measured signals}
- A61B 5/7425: {Displaying combinations of multiple images regardless of image source, e.g. displaying a reference anatomical image with a live image}
- A61B 5/7445: {Display arrangements, e.g. multiple display units}
- A61B 5/748: {Selection of a region of interest, e.g. using a graphics tablet}
- A61B 6/032: {Transmission computed tomography [CT]}
- A61B 6/466: {adapted to display 3D data}
- A61B 6/504: {for diagnosis of blood vessels, e.g. by angiography}
- A61B 6/5217: {extracting a diagnostic or physiological parameter from medical diagnostic data}
- A61B 8/06: Measuring blood flow
- G06F 3/017: {Gesture based interaction, e.g. based on a set of recognized hand gestures (interaction based on gestures traced on a digitiser G06F3/04883)}
- G06F 3/04815: Interaction with a metaphor-based environment or interaction object displayed as three-dimensional [3D], e.g. changing the user viewpoint with respect to the environment or object
- G06F 3/0486: Drag-and-drop
- G06F 3/0488: using a touch-screen or digitiser, e.g. input of commands through traced gestures
- G06F 30/20: Design optimisation, verification or simulation (optimisation, verification or simulation of circuit designs G06F30/30)
- G06T 15/00: Three-dimensional [3D] image rendering
- G06T 17/00: Three-dimensional [3D] modelling for computer graphics
- G06T 19/20: Editing of three-dimensional [3D] images, e.g. changing shapes or colours, aligning objects or positioning parts
- G16B 5/00: ICT specially adapted for modelling or simulations in systems biology, e.g. gene-regulatory networks, protein interaction networks or metabolic networks
- G16H 30/20: for handling medical images, e.g. DICOM, HL7 or PACS
- G16H 50/50: for simulation or modelling of medical disorders
- A61B 5/022: by applying pressure to close blood vessels, e.g. against the skin; Ophthalmodynamometers
- A61B 6/03: Computed tomography [CT]
- A61B 2034/104: {Modelling the effect of the tool, e.g. the effect of an implanted prosthesis or for predicting the effect of ablation or burring}
- A61B 2576/023: for the heart
- G06T 2200/04: involving 3D image data
- G06T 2200/24: involving graphical user interfaces [GUIs]
- G06T 2210/41: Medical
- G06T 2219/2016: Rotation, translation, scaling
- Y02A 90/10: Information and communication technologies [ICT] supporting adaptation to climate change, e.g. for weather forecasting or climate simulation
- A61B: DIAGNOSIS; SURGERY; IDENTIFICATION (usefulness limited to only animals A61D)
- G06F: ELECTRIC DIGITAL DATA PROCESSING (computer systems based on specific computational models G06N)
- G06T: IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G16B: BIOINFORMATICS, i.e. INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR GENETIC OR PROTEIN-RELATED DATA PROCESSING IN COMPUTATIONAL MOLECULAR BIOLOGY
- G16H: HEALTHCARE INFORMATICS, i.e. INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR THE HANDLING OR PROCESSING OF MEDICAL OR HEALTHCARE DATA
- Y02A: TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE

## Abstract

Embodiments include a system for providing blood flow information for a patient. The system may include at least one computer system including a touchscreen. The at least one computer system may be configured to display, on the touchscreen, a three-dimensional model representing at least a portion of an anatomical structure of the patient based on patient-specific data. The at least one computer system may also be configured to receive a first input relating to a first location on the touchscreen indicated by at least one pointing object controlled by a user, and the first location on the touchscreen may indicate a first location on the displayed three-dimensional model. The at least one computer system may be further configured to display first information on the touchscreen, and the first information may indicate a blood flow characteristic at the first location.

## Claims

### Claim 1

A method for providing patient-specific blood flow information using at least a computer system, the method comprising:
receiving over an electronic network, at the computer system, patient-specific anatomical data;
generating, based on the received patient-specific anatomical data, a geometric model representing at least a portion of an anatomical structure of a patient, and a reduced-order model of the portion of the anatomical structure;
transmitting over the electronic network one or both of the geometric model and the reduced-order model to a portable computer including a touchscreen;
receiving over the electronic network, at the computer system, a user intervention input entered by a user on the touchscreen indicating a potential treatment of the anatomical structure that initiates a modification of the reduced-order model;
calculating, at the computer system, at least one blood flow characteristic based on the received user intervention input and the modification of the reduced-order model; and
transmitting over the electronic network the calculated at least one blood flow characteristic to the portable computer.

### Claim 2 (depends on 1)

The method of claim 1, wherein the geometric model is a three-dimensional model.

### Claim 3 (depends on 1)

The method of claim 1, wherein the patient-specific anatomical data includes imaging data of at least a portion of an anatomical structure of a patient.

### Claim 4 (depends on 3)

The method of claim 3, wherein the anatomical structure includes at least a portion of an aorta and at least a portion of a plurality of coronary arteries emanating from the portion of the aorta.

### Claim 5 (depends on 3)

The method of claim 3, wherein the anatomical structure includes at least one of a portion of a plurality of arteries in the patient's heart, neck, head, thorax, abdomen, arms, or legs.

### Claim 6 (depends on 1)

The method of claim 1, wherein the modification of the reduced-order model is initiated on the portable computer.

### Claim 7 (depends on 1)

The method of claim 1, wherein the modification of the reduced-order model is initiated on the computer system.

### Claim 8 (depends on 1)

The method of claim 1, wherein the modification corresponds to placement of a stent.

### Claim 9 (depends on 1)

The method of claim 1, wherein the modification corresponds to a formation of a bypass.

### Claim 10 (depends on 1)

The method of claim 1, wherein the electronic network is chosen from a wired and a wireless network.

### Claim 11

A system for providing patient-specific blood flow information for a patient, the system comprising at least:
a computer system including a processor configured to:
receive over an electronic network patient-specific data anatomical data;
generate, based on the received patient-specific anatomical data, a geometric model representing at least a portion of an anatomical structure of a patient, and a reduced-order model of the portion of the anatomical structure;
transmit over the electronic network one or both of the geometric model and the reduced-order model to a portable computer including a touchscreen;
receive over the electronic network a user intervention input entered by a user on the touchscreen indicating a potential treatment of the anatomical structure that initiates a modification of the reduced-order model;
calculate at least one blood flow characteristic based on the received user intervention input and the modification of the reduced-order model; and
transmit over the electronic network the calculated at least one blood flow characteristic to the portable computer.

### Claim 12 (depends on 11)

The system of claim 11, wherein the geometric model is a three-dimensional model.

### Claim 13 (depends on 11)

The system of claim 11, wherein the patient-specific anatomical data includes imaging data of at least a portion of an anatomical structure of a patient.

### Claim 14 (depends on 13)

The system of claim 13, wherein the anatomical structure includes at least a portion of an aorta and at least a portion of a plurality of coronary arteries emanating from the portion of the aorta.

### Claim 15 (depends on 13)

The system of claim 13, wherein the anatomical structure includes at least one of a portion of a plurality of arteries in the patient's heart, neck, head, thorax, abdomen, arms, or legs.

### Claim 16 (depends on 11)

The system of claim 11, wherein the modification of the reduced-order model is initiated on the portable computer.

### Claim 17 (depends on 11)

The system of claim 11, wherein the modification of the reduced-order model is initiated on the computer system.

### Claim 18 (depends on 11)

The system of claim 11, wherein the modification corresponds to placement of a stent.

### Claim 19 (depends on 11)

The system of claim 11, wherein the modification corresponds to a formation of a bypass.

### Claim 20 (depends on 11)

The system of claim 11, wherein the electronic network is chosen from a wired and a wireless network.

### Claim 21

A non-transitory computer readable medium for use on at least a computer system containing computer-executable programming instructions for providing patient-specific blood flow information, the instructions being executable by the computer system for:
receiving over an electronic network, at the computer system, patient-specific anatomical data;
generating, based on the received patient-specific anatomical data, a geometric model representing at least a portion of an anatomical structure of a patient, and a reduced-order model of the portion of the anatomical structure;
transmitting over the electronic network one or both of the geometric model and the reduced-order model to a portable computer including a touchscreen;
receiving over the electronic network, at the computer system, a user intervention input entered by a user on the touchscreen indicating a potential treatment of the anatomical structure that initiates a modification of the reduced-order model;
calculating at least one blood flow characteristic based on the received user intervention input and the modification of the reduced-order model; and
transmitting the calculated at least one blood flow characteristic to the portable computer.

### Claim 22 (depends on 21)

The non-transitory computer readable medium of claim 21, wherein the geometric model is a three-dimensional model.

### Claim 23 (depends on 21)

The non-transitory computer readable medium of claim 21, wherein the patient-specific anatomical data includes imaging data of at least a portion of an anatomical structure of a patient.

### Claim 24 (depends on 23)

The non-transitory computer readable medium of claim 23, wherein the anatomical structure includes at least a portion of an aorta and at least a portion of a plurality of coronary arteries emanating from the portion of the aorta.

### Claim 25 (depends on 23)

The non-transitory computer readable medium of claim 23, wherein the anatomical structure includes at least one of a portion of a plurality of arteries in the patient's heart, neck, head, thorax, abdomen, arms, or legs.

### Claim 26 (depends on 21)

The non-transitory computer readable medium of claim 21, wherein the modification of the reduced-order model is initiated on the portable computer.

### Claim 27 (depends on 21)

The non-transitory computer readable medium of claim 21, wherein the modification of the reduced-order model is initiated on the computer system.

### Claim 28 (depends on 21)

The non-transitory computer readable medium of claim 21, wherein the modification corresponds to placement of a stent.

### Claim 29 (depends on 21)

The non-transitory computer readable medium of claim 21, wherein the modification corresponds to a formation of a bypass.

### Claim 30 (depends on 21)

The non-transitory computer readable medium of claim 21, wherein the electronic network is chosen from a wired and a wireless network.
