Systems for image detection

• US 10,209,376 B2
• Filed: 02/26/2018
• Issued: 02/19/2019
• Est. Priority Date: 12/20/2013
• Status: Active Grant

• Current Assignee: General Electric Company
• Original Assignee: General Electric Company
• Inventors: Kovalski, Gil, Bouhnik, Jean-Paul, Sachs, Jonathan, Grobshtein, Yariv, Zingerman, Yulim, Eshco, Arie, Hefetz, Yaron
• Primary Examiner(s): Kim, Kiho
• Application Number:
  US15/905,266
• Publication Number:
  US 20180188393A1
• Time in Patent Office: 358 Days
• CPC Class Codes: A61B 6/037 Emission tomography
• CPC Class Codes: A61B 6/4258 for detecting non x-ray radiation, e.g. gamma radiation A61B6/037 takes precedence
• CPC Class Codes: A61B 6/4266 characterised by using a plurality of detector units A61B6/4014 takes precedence
• CPC Class Codes: A61B 6/503 for diagnosis of the heart
• CPC Class Codes: A61B 6/545 involving automatic set-up of acquisition parameters
• CPC Class Codes: A61B 6/547 involving tracking of position of the device or parts of the device
• CPC Class Codes: G01T 1/161 Applications in the field of nuclear medicine, e.g. in vivo counting apparatus for radiation diagnosis A61B6/00
• CPC Class Codes: G01T 1/1648 Ancillary equipment for scintillation cameras, e.g. reference markers, devices for removing motion artifacts, calibration devices adapted for flow studies G01T1/1647
• CPC Class Codes: G01T 1/166 involving relative movement between detector and subject scanners in general without using scintigraphy G01T1/2964
• CPC Class Codes: G01T 1/2985 In depth localisation, e.g. using positron emitters; Tomographic imaging (longitudinal and transverse section imaging; apparatus for radiation diagnosis sequentially in different planes, steroscopic radiation diagnosis); using external radiation sources A61B6/02
• CPC Class Codes: G06T 11/005 Specific pre-processing for tomographic reconstruction, e.g. calibration, source positioning, rebinning, scatter correction, retrospective gating

Abstract

A customizable and upgradable imaging system is provided. Imaging detector columns are installed in a gantry to receive imaging information about a subject. Imaging detector columns can extend and retract radially as well as be rotated orbitally around the gantry. The gantry can be partially populated with detector columns and the detector columns can be partially populated with detector elements.

Claims

1. An imaging system, comprising:

a gantry having a bore configured to accept a patient, the bore defining a circumference and a central axis extending along a center of the bore, the gantry configured to rotate about the center of the bore;

between five and nine imaging detector columns attached to the gantry, each detector column comprising a detector arm and a detector head, each detector arm extending radially toward the center of the bore from the gantry, each detector head coupled to a corresponding detector arm and comprising at least one detector element, wherein each detector head is configured to be radially articulable toward and away from the center of the bore, and each detector head is configured to be pivotable with respect to the corresponding detector arm around a sweep pivot axis, each sweep pivot axis extending parallel to the central axis extending along the center of the bore; and

at least one processor operably coupled to the detector columns and configured to independently control the between five and nine imaging detector columns, and to acquire imaging information with the detector elements, wherein the gantry includes additional gantry locations configured for installation of additional detector columns, the imaging system configured for the additional gantry locations to be vacant when the at least one processor acquires the imaging information with the between five and nine imaging detectors.

2. The imaging system of claim 1, wherein the imaging system comprises six or less imaging detector columns distributed along half or less of the circumference of the bore.

3. The imaging system of claim 1, wherein the detector heads of the between five and nine imaging detector columns are extendable toward the center of the bore toward a position in which the detector heads are adjacent each other.

4. The imaging system of claim 1, wherein the at least one processor is configured to acquire cardiac imaging information with the detector elements.

5. The imaging system of claim 1, wherein each detector head defines a length extending along the corresponding sweep pivot axis, wherein at least some of the detector heads include plural detector element locations extending along the length, each detector element location configured to accept a corresponding detector element, each detector element configured to receive photons during acquisition of imaging information.

6. The imaging system of claim 5, wherein the system is configured for vacant detector element locations and occupied detector element locations to alternate along the length of at least one of the detector heads.

7. The imaging system of claim 5, wherein the system is configured for all vacant detector element locations of at least one detector head to be positioned toward a first side of the detector head and all occupied detector element locations to be positioned toward an opposite side of the detector head.

8. The imaging system of claim 5, wherein detector element locations alternate between odd positions and even positions along the length, wherein the system is configured for a first detector head to comprise vacant detector element locations at the odd positions and occupied detector element location at the even positions, and for a second detector head adjacent the first detector head to comprise vacant detector element locations at the even positions and occupied detector element location at the odd positions.

9. An imaging system, comprising:

a gantry having a bore configured to accept a patient, the bore defining a circumference and a central axis extending along a center of the bore, the gantry configured to rotate about the center of the bore;

plural imaging detector columns attached to the gantry, each detector column comprising a detector arm and a detector head, each detector arm extending radially toward the center of the bore from the gantry, each detector head coupled to a corresponding detector arm and comprising at least one detector element, wherein each detector head is configured to be radially articulable toward and away from the center of the bore, and each detector head is configured to be pivotable with respect to the corresponding detector arm around a sweep pivot axis, each sweep pivot axis extending parallel to the central axis extending along the center of the bore, wherein each detector head defines a length extending along the corresponding sweep pivot axis, wherein at least some of the detector heads include plural detector element locations extending along the length, each detector element location configured to accept a corresponding detector element, each detector element configured to receive photons during acquisition of imaging information, wherein the system is configured for some of the detector element locations to be vacant during acquisition of imaging information; and

at least one processor operably coupled to the detector columns and configured to independently control the imaging detector columns, and to acquire imaging information with the detector elements.

10. The imaging system of claim 9, wherein the system is configured for vacant detector element locations and occupied detector element locations to alternate along the length of at least one of the detector heads.

11. The imaging system of claim 9, wherein the system is configured for all vacant detector element locations of at least one detector head to be positioned toward a first side of the detector head and all occupied detector element locations to be positioned toward an opposite side of the detector head.

12. The imaging system of claim 9, wherein detector element locations alternate between odd and even positions along the length, wherein the system is configured for a first detector head to comprise vacant detector element locations at the odd positions and occupied detector element location at the even positions, and for a second detector head adjacent the first detector head to comprise vacant detector element locations at the even positions and occupied detector element location at the odd positions.

13. A method comprising:

attaching between five and nine imaging detector columns to a gantry, the gantry having a bore configured to accept a patient, the bore defining a circumference and a central axis extending along a center of the bore, the gantry configured to rotate about the center of the bore, each detector column comprising a detector arm and a detector head, each detector arm extending radially toward the center of the bore from the gantry, each detector head coupled to a corresponding detector arm and comprising at least one detector element, wherein each detector head is configured to be radially articulable toward and away from the center of the bore, and each detector head is configured to be pivotable with respect to the corresponding detector arm around a sweep pivot axis, each sweep pivot axis extending parallel to the central axis extending along the center of the bore, wherein the detector columns are distributed along half or less of the circumference of the bore;

independently controlling, with at least one processor, the between five and nine imaging detector columns to acquire imaging information with the detector elements; and

reconstructing an image using the imaging information.

14. The method of claim 13, wherein attaching the between five and nine imaging detector columns comprises attaching six or less imaging detector columns.

15. The method of claim 13, wherein the imaging information is cardiac imaging information and the image is a cardiac diagnostic image.

16. The method of claim 13, wherein the gantry includes additional gantry locations configured for installation of additional detector columns, the method comprising leaving the additional gantry locations vacant when the at least one processor acquires the imaging information with the between five and nine imaging detectors.

17. The method of claim 13, wherein each detector head defines a length extending along the corresponding sweep pivot axis, wherein at least some of the detector heads include plural detector element locations extending along the length, each detector element location configured to accept a corresponding detector element, each detector element configured to receive photons during acquisition of imaging information, wherein the method comprises wherein leaving some of the detector element locations vacant during acquisition of imaging information.

18. The method of claim 13, wherein vacant detector element locations and occupied detector element locations alternate along the length of at least one of the detector heads.