Medical measuring system and method

• US 8,754,865 B2
• Filed: 11/16/2012
• Issued: 06/17/2014
• Est. Priority Date: 11/16/2011
• Status: Active Grant

• Current Assignee: Volcano Corporation (Koninklijke Philips N.V.)
• Original Assignee: Volcano Corporation (Koninklijke Philips N.V.)
• Inventors: Merritt, Fergus, Cohen, Asher, De Jong, Duane, Litzza, Gerald Lea, Cheline, Aaron
• Primary Examiner(s): Chen, Tse
• Assistant Examiner(s): IP, JASON M
• Application Number:
  US13/679,776
• Publication Number:
  US 20130120297A1
• Time in Patent Office: 578 Days
• Field of Search: 345/173, 600/407, 600/437, 600/466, 600/467
• US Class Current: 345/173
• CPC Class Codes: A61B 2560/0437 Trolley or cart-type apparatus
• CPC Class Codes: A61B 2560/0487 Special user inputs or interfaces
• CPC Class Codes: A61B 5/0013 Medical image data A61B1/00011, A61B6/56, A61B8/56 take precedence
• CPC Class Codes: A61B 5/0059 using light, e.g. diagnosis by transillumination, diascopy, fluorescence A61B5/0093, A61B5/1455, A61B5/02416 and A61B5/0261 take precedence
• CPC Class Codes: A61B 5/0066 Optical coherence imaging
• CPC Class Codes: A61B 5/0077 Devices for viewing the surface of the body, e.g. camera, magnifying lens
• CPC Class Codes: A61B 5/0084 for introduction into the body, e.g. by catheters A61B5/1459 takes precedence
• CPC Class Codes: A61B 5/0095 by applying light and detecting acoustic waves, i.e. photoacoustic measurements
• CPC Class Codes: A61B 5/1076 for measuring dimensions inside body cavities, e.g. using catheters A61B3/1005 takes precedence
• CPC Class Codes: A61B 5/7435 Displaying user selection data, e.g. icons in a graphical user interface
• CPC Class Codes: A61B 5/7445 Display arrangements, e.g. multiple display units
• CPC Class Codes: A61B 6/504 for diagnosis of blood vessels, e.g. by angiography
• CPC Class Codes: A61B 6/56 Details of data transmission or power supply, e.g. use of slip rings
• CPC Class Codes: A61B 8/12 in body cavities or body tracts, e.g. by using catheters catheters per se A61M25/00
• CPC Class Codes: A61B 8/4416 related to combined acquisition of different diagnostic modalities, e.g. combination of ultrasound and X-ray acquisitions
• CPC Class Codes: A61B 8/467 characterised by special input means
• CPC Class Codes: A61B 8/56 Details of data transmission or power supply
• CPC Class Codes: A61B 8/565 involving data transmission via a network
• CPC Class Codes: A61M 5/007 for contrast media
• CPC Class Codes: G06F 3/01 Input arrangements or combined input and output arrangements for interaction between user and computer G06F3/16 takes precedence
• CPC Class Codes: G06F 3/041 : Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
• CPC Class Codes: G06F 3/04883 : for inputting data by handwriting, e.g. gesture or text
• CPC Class Codes: G16H 40/63 : for local operation

Abstract

A method of performing measurements on medical images with a bedside controller includes receiving, through a touch-sensitive display on the bedside controller, a user measurement input on an image displayed on the display, the user measurement input including a start point defined by a point of initial contact with the touch-sensitive display and an end point defined by a point of last contact with the touch-sensitive display. The method also includes selecting a measurement mode based on a shape of the user measurement input and calculating a measurement value associated with the user measurement input based on the measurement mode.

Claims

1. A method of performing measurements on medical images with a bedside controller, the method comprising:

receiving, through a touch-sensitive display on the bedside controller, a user measurement input on an intravascular image displayed on the display, the intravascular image obtained in real time by an intravascular imaging device within a vessel of a patient, the intravascular imaging device including at least one of an ultrasound transducer and an optical coherence tomography (OCT) component, wherein the intravascular imaging device is controlled by the bedside controller, and wherein the user measurement input includes a start point on the intravascular image defined by a point of initial contact with the touch-sensitive display and an end point on the intravascular image defined by a point of last contact with the touch-sensitive display;

selecting a measurement mode from a group of measurement modes including a diameter measurement mode, an area-point measurement mode, and an area-draw measurement mode based on the user measurement input without requiring a user to select the measurement mode prior to making the user measurement input on the touch-sensitive display, wherein selecting the measurement mode includes;

determining if a distance between the start point and the end point is less than a threshold distance;

selecting an area-point measurement if the distance between the start point and the end point is less than the threshold distance;

determining, when the distance between the start point and the end point is greater than a threshold distance, if any intervening points along the user measurement input between the start point and the end point fall outside of a boundary threshold;

selecting the diameter measurement mode if none of the intervening points fall outside of the boundary threshold; and

selecting the area-draw measurement mode if at least one intervening point falls outside of the boundary threshold;

calculating a measurement value associated with the user measurement input based on the selected measurement mode; and

displaying the calculated measurement value on the touch-sensitive display.

2. The method of claim 1, wherein selecting the measurement mode includes selecting one of the diameter measurement mode, the area-point measurement mode, and the area-draw measurement mode based on the shape of the user measurement input.

3. The method of claim 1,

wherein, in response to selecting the diameter measurement mode, a straight line is drawn between the start point and the end point;

and

wherein calculating the measurement value includes calculating the length of the straight line.

4. The method of claim 1,

wherein selecting the area-point or area-draw measurement mode includes connecting the start point and the end point to create a bounded object;

and

wherein calculating the measurement value includes calculating the area of the bounded object.

5. The method of claim 1, wherein, after selecting the area-point measurement mode, the method further includes determining whether additional points are needed to calculate an area measurement value on the intravascular image.

6. The method of claim 5, wherein, after selecting the area-point measurement mode, the method further includes:

interpreting subsequent user measurement inputs as points; and

connecting the points to create a bounded object;

wherein calculating the measurement value includes calculating the area of the bounded object.

7. The method of claim 1, wherein receiving the user measurement input includes detecting contact on the touch-sensitive display from one of a stylus and a body part.

8. The method of claim 1, wherein receiving the user measurement input includes detecting contact on the touch-sensitive display through one of a sterile drape and a glove.

9. A bedside controller, comprising:

a housing, the housing including self-contained mounting structure;

a touch-sensitive display disposed within the housing and configured to display real-time intravascular images obtained by an intravascular imaging device disposed within a vessel of the patient and receive user input on the touch-sensitive display, wherein the intravascular imaging device includes at least one of an ultrasound transducer and an optical coherence tomography (OCT) component;

a processor disposed within the housing;

a communication module disposed within the housing, communicatively coupled to the processor and the intravascular imaging device disposed within the vessel, and configured to transmit and receive medical data from a processing system, the medical data including the real-time intravascular images obtained by the intravascular imaging device; and

a non-transitory computer readable storage module disposed within the housing, communicatively coupled to the processor, and including a plurality of instructions stored therein and executable by the processor, the plurality of instructions including;

instructions for receiving, through the touch-sensitive display, a user measurement input on an intravascular image displayed on the display, the user measurement input including a start point on the intravascular image defined by a point of initial contact with the touch-sensitive display and an end point on the intravascular image defined by a point of last contact with the touch-sensitive display;

instructions for selecting a measurement mode based on the user measurement input without requiring a user to select the measurement mode prior to making the user measurement input on the touch-sensitive display, wherein the measurement mode is selected from a group of measurement modes including a diameter measurement mode, an area-point measurement mode, and an area-draw measurement mode by;

determining if a distance between the start point and the end point is less than a threshold distance;

selecting an area-point measurement if the distance between the start point and the end point is less than the threshold distance;

determining, when the distance between the start point and the end point is greater than a threshold distance, if any intervening points along the user measurement input between the start point and the end point fall outside of a boundary threshold;

selecting the diameter measurement mode if none of the intervening points fall outside of the boundary threshold; and

selecting the area-draw measurement mode if at least one intervening point falls outside of the boundary threshold;

instructions for calculating a measurement value associated with the user measurement input based on the selected measurement mode; and

instructions for displaying the calculated measurement value on the touch-sensitive display.

10. The bedside controller of claim 9, wherein the touch-sensitive display is configured to accept user input through a sterile drape.

11. The bedside controller of claim 9, wherein the touch-sensitive display is configured to accept user input from gloved touch.

12. The bedside controller of claim 9, wherein the touch-sensitive display is configured to provide haptic feedback to a user.

13. The bedside controller of claim 9, wherein the housing is fluid resistant.

14. The bedside controller of claim 9, wherein the communication module is a wireless communication module.

15. The bedside controller of claim 9, including a rechargeable battery disposed within the housing, the battery being configured to provide power to the non-transitory computer readable storage module, the communication module, the processor, and the touch-sensitive display.

16. The bedside controller of claim 15, wherein the bedside controller is configured to dock to a processing system and draw power therefrom to recharge the battery.

17. The bedside controller of claim 9, wherein the instructions for selecting the measurement mode include instructions for selecting one of a diameter measurement mode, the area-point measurement mode, and an area-draw measurement mode based on the shape of the user measurement input.

18. The bedside controller of claim 9,

wherein the instructions for selecting the measurement mode include instructions for drawing a straight line between the start point and the end point when the diameter measurement mode is selected;

and

wherein the instructions for calculating the measurement value include instructions for calculating the length of the straight line when the diameter measurement mode is selected.

19. The bedside controller of claim 9,

wherein the instructions for selecting the measurement mode include instructions for connecting the start point and the end point to create a bounded object when the area-point or area-draw measurement mode is selected;

and

wherein the instructions for calculating the measurement value include instructions for calculating the area of the bounded object when the area-point or area-draw measurement mode is selected.

20. A medical measuring system, comprising:

a medical sensor device configured to gather intravascular medical data from a patient;

a processing system communicatively coupled to the medical sensor device and operable to receive the intravascular medical data from the medical sensor device, wherein the medical sensor device includes at least one of an ultrasound transducer and an optical coherence tomography (OCT) component, the processing system being further operable to transform the intravascular medical data into real-time intravascular medical images representative of the patient; and

a bedside controller communicatively coupled to the processing system and operable to receive the real-time intravascular medical images from the processing system and display the real-time intravascular medical images on a touch-sensitive display, the bedside controller being further configured to;

receive, through the touch-sensitive display, a user measurement input on a intravascular medical image displayed on the display, the user measurement input including a start point on the intravascular medical image defined by a point of initial contact with the touch-sensitive display and an end point on the intravascular medical image defined by a point of last contact with the touch-sensitive display;

select a measurement mode from a group of measurement modes including a diameter measurement mode, an area-point measurement mode, and an area-draw measurement mode based on the user measurement input without requiring a user to select the measurement mode prior to making the user measurement input on the touch-sensitive display, wherein selecting the measurement mode includes;

determining if a distance between the start point and the end point is less than a threshold distance;

selecting an area-point measurement if the distance between the start point and the end point is less than the threshold distance;

determining, when the distance between the start point and the end point is greater than a threshold distance, if any intervening points along the user measurement input between the start point and the end point fall outside of a boundary threshold;

selecting the diameter measurement mode if none of the intervening points fall outside of the boundary threshold; and

selecting the area-draw measurement mode if at least one intervening point falls outside of the boundary threshold; and

calculate a measurement value associated with the user measurement input based on the selected measurement mode.

21. The medical measuring system of claim 20, wherein the bedside controller is configured to select one of the diameter measurement mode, the area-point measurement mode, and the area-draw measurement mode based on the shape of the user measurement input.

22. The medical measuring system of claim 20, wherein the bedside controller is configured to control the commencement and termination of a recordation of medical data captured by the medical sensor device.