Method for providing medical images

• US 5,590,215 A
• Filed: 04/21/1995
• Issued: 12/31/1996
• Est. Priority Date: 10/15/1993
• Status: Expired due to Term

• Current Assignee: Marker
• Original Assignee: George S. Allen
• Inventors: Allen, George S.
• Primary Examiner(s): COUSO, YON JUNG
• Application Number:
  US08/427,634
• Time in Patent Office: 620 Days
• Field of Search: 382/128, 382/131, 382/132, 382/190, 382/278, 364/413.13, 364/413.18, 364/413.19
• US Class Current: 382/128
• CPC Class Codes: G06T 11/008 Specific post-processing after tomographic reconstruction, e.g. voxelisation, metal artifact correction

Abstract

A technique for integrating voxelly-assigned information regarding a portion of anatomy derived from a number of sources into an accurate, single two dimensional pixel-based representation of a view of that anatomy is disclosed. Empirical relationships between known properties are used to infer values for unknown properties.

Claims

1. A method for determining a measurement of a physical property of interest associated with the discrete spatial locations of a three dimensional object, wherein each spatial location of the three dimensional object has a unique address, and wherein the three dimensional object is composed of a plurality of types of matter, each type of matter having at least two properties, comprising the steps of:

generating a first set of data reflective of at least a first physical property accessible by a first imaging technique and scanner for each spatial location of the area of interest;

generating a second set of data reflective of at least a second physical property accessible by a second, different imaging technique and scanner for each spatial location of the area of interest;

storing the data generated by the first and second imaging techniques in a memory storage device along with the address of each spatial location; and

assigning to each unique address a first value, said first value representing the measurement of said property of interest for each unique address, said first value based on a correlation between said property of interest with the measure of the first physical property obtained in the first imaging scan taken and the correlation between said property of interest with the measure of the second physical property obtained in the second imaging scan taken, such that said property of interest is different from said first and second physical properties.

2. The method of claim 1, further comprising the step of assigning to each address a pixel display value defining the physical appearance that the pixel is to have upon its display.

3. The method of claim 2, further comprising the step of

displaying an image based on the pixels so defined.

4. The method of claim 1, wherein the first set of data is generated by a CT scan.

5. The method of claim 1, wherein the first set of data is generated by a PET scan.

6. The method of claim 1, wherein the first set of data is generated by a particular type of MRI scan.

7. The method of claim 1, further comprising the steps of

generating additional sets of data reflective of at least one additional physical property accessible by additional imaging techniques for each spatial location of the area of interest, wherein each spatial location has an address;

and

storing the additional sets of data so generated in a computer memory along with the address of each spatial location.

8. The method of claim 1, wherein the three dimensional object includes a portion of human anatomy.

9. The method of claim 1, wherein the physical properties being determined relate to the appearance of the region when exposed to visible light.

10. The method of claim 1, wherein the second set of data is generated by a CT scan.

11. The method of claim 1, wherein the second set of data is generated by a PET scan.

12. The method of claim 1, wherein the second set of data is generated by a particular type of MRI scan.

13. The method of claim 1, wherein the correlation between the property of interest and a value of at least one of the physical properties measured in at least one of the generated data sets is determined empirically.

14. The method of claim 1, wherein at least one of the generated sets of data is reflective of density.

15. The method of claim 1, wherein at least one of the generated sets of data is reflective of the position of known features in relation to each other.

16. The method of claim 1, wherein at last one of the generated sets of data is reflective of the presence of hydrogen.

17. The method of claim 1, wherein at last one of the generated sets of data is reflective of sound transmissibility.

18. The method of claim 1, wherein at least one of the generated sets of data is indicative of the manner in which light is absorbed or reflected.

19. The method of claim 1, wherein at last one of the generated sets of data is reflective of temperature.

20. The method of claim 1, wherein at least one of the generated sets of data is reflective of electrical activity.

21. The method of claim 1, wherein at least one of the generated sets of data is reflective of energy usage.

22. A method for determining a measurement of a tissue type property associated with the discrete spatial locations of a three dimensional object, wherein each spatial location of the three dimensional object has a unique address, and wherein the three dimensional object is composed of a plurality of types of matter, each type of matter having at least two properties, comprising the steps of:

generating a first set of data reflective of at least a first physical property accessible by a first imaging technique and scanner for each spatial location of the area of interest;

generating a second set of data reflective of at least a second physical property accessible by a second, different imaging technique and scanner for each spatial location of the area of interest;

storing the data generated by the first and second imaging techniques in a memory storage device along with the address of each spatial location; and

assigning to each unique address a first value, said first value representing the measurement of the tissue type property for each unique address, said first value based on a correlation between the tissue type property with the measure of the first physical property obtained in the first imaging scan taken and the correlation between the tissue type property with the measure of the second physical property obtained in the second imaging scan taken, such that said first and second physical properties are different from the tissue type property.

23. The method of claim 22, further comprising the step of assigning to each unique address a pixel display value defining the physical appearance that the pixel is to have upon its display.

24. The method of claim 23, further comprising the step of displaying an image based on the pixels so defined.

25. The method of claim 22, wherein the three dimensional object includes a portion of human anatomy.