Medical image data processing system and method

Patent metadata

Field	Value
Publication number	US-10342633-B2
Application number	US-201615186733-A
Country	US
Kind code	B2
Filing date	Jun 20, 2016
Priority date	Jun 20, 2016
Publication date	Jul 9, 2019
Grant date	Jul 9, 2019

Abstract

A medical image data processing system comprising processing circuitry configured to receive three-dimensional medical imaging data; and process the three-dimensional medical imaging data to generate using a virtual light source an image for display, wherein the processing circuitry is configured to vary at least one parameter relevant to the virtual light source in dependence on at least one of a position of a medical device inserted into a human or animal body, a position of a viewing point for virtual endoscopic imaging, and the progress of a procedure.

First claim

The invention claimed is:

1. A medical image data processing system, comprising:
processing circuitry configured to
receive three-dimensional medical imaging data representative of a region of a human or animal body and of at least part of a medical device inserted into the human or the animal body;
and
process the three-dimensional medical imaging data to generate, using a viewpoint positioned on the human's or the animal body's surface side with respect to the medical device and a virtual light source positioned away from the viewpoint, an image for display, wherein the processing of the three-dimensional medical imaging data to generate the image for display comprises (1) positioning the virtual light source in a virtual space of the three-dimensional imaging data such that the virtual light source is positioned in the virtual space of the three-dimensional imaging data at or near a representation of at least part of the medical device, or (2) positioning the virtual light source in the virtual space of the three-dimensional imaging data such that the virtual light source is positioned in the virtual space of the three-dimensional imaging data at or near a representation of a desired position to which the medical device is to be moved,
wherein the processing circuitry is further configured to vary at least one parameter relevant to the virtual light source in dependence on at least one of a position of the medical device inserted into the human or the animal body and progress of a procedure,
wherein the positioning of the virtual light source relative to the representation of the at least part of the medical device by the processing circuitry comprises at least one of positioning the virtual light source at or near a tip of the medical device;
positioning the virtual light source at or near a part of the medical device configured to perform a medical device process; and
distributing the virtual light source along at least part of a length of the medical device.

2. The system according to claim 1 , wherein the processing of the data to generate the image by the processing circuitry comprises associating the virtual light source with at least part of the medical device.

3. The system according to claim 2 , wherein the associating of the virtual light source with at least part of the medical device by the processing circuitry comprises positioning the virtual light source relative to the representation of the at least part of the medical device.

4. The system according to claim 1 , wherein the virtual light source comprises at least one of a point light source and a distributed light source.

5. The system according to claim 1 , wherein the processing circuitry is further configured to receive user input and process the three-dimensional medical imaging data based on the user input.

6. The system according to claim 1 , wherein the progress of the procedure comprises at least one of a duration of the procedure, a level of completeness of the procedure, and a number of medical device processes performed.

7. The system according to claim 1 , wherein the procedure comprises movement of the medical device to a desired position, and the processing circuitry is further configured to vary the at least one parameter in dependence on a position of the medical device relative to the desired position.

8. The system according to claim 7 , wherein the desired position comprises at least one of
a desired position relative to a selected anatomical feature,
a desired position relative to a position of a measurement,
a desired position relative to a position associated with a further image, and
a desired position relative to an ultrasound plane.

9. The system according to claim 7 , wherein the desired position comprises a desired position relative to at least one of
a position where it is desired for the medical device to perform a medical device process,
at least one prior position where at least one medical device process has previously been performed,
a desired biopsy position, and
at least one previous biopsy position.

10. The system according to claim 1 , wherein the processing circuitry is further configured to receive further data representative of at least one property of the human or the animal body, and the varying of the at least one parameter comprises varying of the at least one parameter in dependence on the at least one property of the human or the animal body.

11. The system according to claim 10 , wherein said further data comprises a result of a measurement.

12. The system according to claim 11 , wherein the measurement comprises at least one of an ultrasound measurement, an electrography measurement, a PET measurement, a SPECT measurement, a CT measurement, a CT perfusion measurement, an elasticity measurement, and a viscosity measurement.

13. The system according to claim 10 , wherein the at least one property of the human or the animal body comprises at least one of elasticity, viscosity, uptake of a radionuclide, uptake of a radioactive tracer, FDG (Fludeoxyglucose (18F)) uptake, technetium-99m uptake, electrical activity, computed pressure, computed flow, and CT perfusion.

14. The system according to claim 1 , wherein the at least one parameter that is varied by the processing circuitry comprises at least one property of the virtual light source.

15. The system according to claim 14 , wherein the at least one property of the virtual light source comprises at least one of:
intensity of the virtual light source,
colour of the virtual light source,
direction of the virtual light source,
position of the virtual light source,
at least one of direction and size of a light beam or light cone produced by the virtual light source, and
at least one of pulse duration or pulse frequency of light produced by the virtual light source, wherein the virtual light source produces pulsed light.

16. The system according to claim 1 , wherein the at least one parameter varied by the processing circuitry comprises at least one parameter of a global illumination process.

17. The system according to claim 1 , further comprising at least one display device, wherein the processing circuitry is further configured to display on the at least one display device the image adjacent to or overlaid with a further image.

18. The system according to claim 1 , wherein the medical device comprises at least one of a needle, a stent, a replacement body part, a prosthetic, a measurement device, a surgical device, a valve, an imaging device, an endoscopic device, a catheter, an electronic device, an implant, and an ultrasound probe.

19. A medical image data processing method, comprising:
receiving three-dimensional medical imaging data representative of a region of a human or animal body and of at least part of a medical device inserted into the human or the animal body; and
processing the three-dimensional medical imaging data to generate, using a viewpoint positioned on the human's or the animal body's surface side with respect to the medical device and a virtual light source positioned away from the viewpoint, an image for display, wherein the processing of the three-dimensional medical imaging data to generate the image for display comprises (1) positioning the virtual light source in a virtual space of the three-dimensional imaging data such that the virtual light source is positioned in the virtual space of the three-dimensional imaging data at or near a representation of at least part of the medical device, or (2) positioning the virtual light so

Assignees

• Toshiba Medical Sys Corp

Inventors

• Wahrenberg Magnus
• Lawton Tristan
• Day Timothy

Classifications

• A61B90/37 Primary

  Surgical systems with images on a monitor during operation · CPC title

• G06T7/70

  Determining position or orientation of objects or cameras (camera calibration G06T7/80) · CPC title

• A61B2034/2051

  Electromagnetic tracking systems · CPC title

• G06T15/08 Primary

  Volume rendering · CPC title

• A61B2090/378

  using ultrasound · CPC title