Compact multi-purpose SPECT system

Abstract

This provides efficient generation and / or use of tomographic images using depth-resolved gamma cameras. [Solution] The system and method include generating a first tomographic image of a subject based on first gamma rays detected by the detector while the detector 1010 is positioned in a first position relative to the subject 1050; generating a second tomographic image of the subject based on second gamma rays detected by the detector while the detector is positioned in a second position relative to the subject; identifying one or more tissues of the subject depicted in the first and second tomographic images; and generating a composite tomographic image based on the first tomographic image, the second tomographic image, and the identified one or more tissues.

Claims

1. Gamma-ray detector and A control system, While the detector is positioned at a first location relative to the subject, a first tomographic image of the subject is generated based on the first gamma rays detected by the detector. While the detector is positioned at a second location relative to the subject, a second tomographic image of the subject is generated based on the second gamma ray detected by the detector. Identifying one or more tissues of the subject as depicted in the first and second tomographic images, A composite tomographic image is generated based on the first tomographic image, the second tomographic image, and one or more identified tissues. Control system and, A system that includes this.

2. While the detector is positioned at a third location relative to the subject, a third tomographic image of the subject is generated based on the third gamma ray detected by the detector. Identify one or more second tissues of the subject depicted in the composite tomographic image and the third tomographic image, A second composite tomographic image is generated based on the composite tomographic image, the third tomographic image, and one or more identified second tissues. The system according to claim 1.

3. The system according to claim 2, wherein the first position and the second position are on the same plane, and the third position is not on the same plane as the first position and the second position.

4. The generation of the composite tomographic image includes aligning a first pixel of the first tomographic image showing one or more of the tissues with a second pixel of the second tomographic image showing one or more of the tissues, The generation of the second composite tomographic image includes aligning a third pixel of the composite tomographic image, which shows one or more second tissues, with a fourth pixel of the third tomographic image, which shows one or more second tissues. The system according to claim 3.

5. The generation of the composite tomographic image includes aligning a first pixel of a first tomographic image depicting one or more tissues with a second pixel of a second tomographic image depicting one or more tissues. The system according to claim 1.

6. The system according to claim 1, wherein the first position and the second position lie on the same plane.

7. The steps include generating a first tomographic image of the subject based on first gamma rays detected by the detector while the detector is positioned at a first location relative to the subject, The steps include generating a second tomographic image of the subject based on the second gamma ray detected by the detector while the detector is positioned at a second location relative to the subject, The steps include identifying one or more tissues of the subject as depicted in the first and second tomographic images, The steps of generating a composite tomographic image based on the first tomographic image, the second tomographic image, and one or more identified tissues, A method that includes this.

8. The steps include generating a third tomographic image of the subject based on a third gamma ray detected by the detector while the detector is positioned at a third location relative to the subject, The steps include identifying one or more second tissues of the subject as depicted in the composite tomographic image and the third tomographic image, A step of generating a second composite tomographic image based on the composite tomographic image, the third tomographic image, and one or more identified second tissues, The use according to claim 7, further comprising:

9. The method according to claim 8, wherein the first position and the second position are on the same plane, and the third position is not on the same plane as the first position and the second position.

10. The step of generating the composite tomographic image includes aligning a first pixel of the first tomographic image showing one or more tissues with a second pixel of the second tomographic image showing one or more tissues, The step of generating the second composite tomographic image includes aligning a third pixel of the composite tomographic image, which shows one or more second tissues, with a fourth pixel of the third tomographic image, which shows one or more second tissues. The method according to claim 9.

11. The step of generating the composite tomographic image includes aligning a first pixel of the first tomographic image depicting one or more tissues with a second pixel of the second tomographic image depicting one or more tissues. The method according to claim 7.

12. The method according to claim 7, wherein the first position and the second position lie on the same plane.

13. Gamma-ray detector and A control system, A first tomographic image of the subject is generated based on the first gamma rays detected by the detector while the detector is positioned at a first position relative to the subject. Identify the region of interest in the first tomographic image, Based on the region of interest, the position of the second detector is determined. Move the detector to the second position, While the detector is positioned at the second location, a second tomographic image of the subject is generated based on the second gamma rays detected by the detector. Control system and, A system that includes this.

14. Identify one or more tissues of the subject depicted in the first and second tomographic images, A composite tomographic image is generated based on the first tomographic image, the second tomographic image, and one or more of the identified tissues. The system according to claim 13.

15. The control system generates a third tomographic image of the subject based on the third gamma ray detected by the detector while the detector is positioned at a third location relative to the subject. Identify one or more tissues of the subject depicted in the second and third tomographic images, A composite tomographic image is generated based on the second tomographic image, the third tomographic image, and one or more of the identified tissues. The system according to claim 13.

16. The system according to claim 15, wherein the third position and the second position are on the same plane, and the first position is not on the same plane as the third position and the second position.

17. The generation of the composite tomographic image includes aligning a first pixel of the second tomographic image depicting one or more tissues with a second pixel of the third tomographic image depicting one or more tissues. The system according to claim 15.

18. The system according to claim 13, wherein the second detector position is closer to the subject than the first detector position.

19. The system according to claim 18, wherein the resolution of the second tomographic image is greater than the resolution of the first tomographic image.

20. The system according to claim 13, wherein the resolution of the second tomographic image is greater than the resolution of the first tomographic image.

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