Quantification phantom for use with multiple imaging modalities

Patent metadata

Field	Value
Publication number	US-11246558-B2
Application number	US-201916710118-A
Country	US
Kind code	B2
Filing date	Dec 11, 2019
Priority date	Feb 27, 2015
Publication date	Feb 15, 2022
Grant date	Feb 15, 2022

Abstract

Described is an in-scan phantom for use during an imaging procedure. The phantom can include at least one measuring insert and/or at least one measured insert. The measuring insert may have radiation detecting capabilities while the measured insert may include a radioactive material. Also described is an imaging modality system that includes an imaging modality and an in-scan phantom as well as methods of using the in-scan phantom for imaging a patient or performing a scout scan.

First claim

The invention claimed is:

1. An in-scan phantom for use in an imaging procedure, the in-scan phantom comprising:
a measured insert comprising a radioactive material that is configured to be non-uniform along a Z-axis of the in-scan phantom.

2. The in-scan phantom of claim 1 , further comprising a second measured insert comprising at least one of a low density foam, an ultra-low density foam, an X-ray active gas, and water.

3. The in-scan phantom of claim 1 , further comprising a measuring insert capable of measuring at least one of patient motion during the imaging procedure, and patient weight.

4. The in-scan phantom of claim 1 , further comprising:
an imaging modality system.

5. The imaging modality system of claim 4 , wherein the imaging modality system is a combination imaging modality system selected from a PET/CT combined modality and a PET/MR combined modality.

6. The imaging modality system of claim 4 , further comprising an auxiliary device system that receives information measured by the measuring insert of the in-scan phantom.

7. A method comprising:
placing a patient within an imaging modality of an imaging modality system, wherein the imaging modality system also contains an in-scan phantom comprising a measured insert comprising a radioactive material that is configured to be non-uniform along a Z-axis of the in-scan phantom; and imaging the patient and the in-scan phantom using the imaging modality.

8. The method of claim 7 , further comprising removing at least one measured insert from or inserting at least one measured insert into the in-scan phantom prior to imaging the patient and the in-scan phantom.

9. The method of claim 7 , further comprising:
performing a scout scan using the imaging modality.

Assignees

• Bayer Healthcare Llc

Inventors

• Uber Iii Arthur
• Cowan Kevin
• Griffiths David
• Kingston Ivana
• Liushtyk Dzmitry
• Hoiko Matthew
• Flor Roey
• Redmond Robert
• Hernaez Henry
• Balasubramanian Sridhar

Classifications

• G01T7/00

  Details of radiation-measuring instruments · CPC title

• A61B6/544

  dependent on patient size · CPC title

• A61B6/585

  Calibration of detector units · CPC title

• A61B5/0035

  adapted for acquisition of images from more than one imaging mode, e.g. combining MRI and optical tomography · CPC title

• A61B6/5288

  involving retrospective matching to a physiological signal · CPC title