Multimodal imaging fiducial marker
A multimodal fiducial marker ( 10 ) for registration of data is disclosed. The multimodal fiducial marker ( 10 ) generally comprises a first portion ( 12 ) made from at least one radiopaque material and a second portion ( 14 ) made from a porous material capable of absorbing at least one radioactive material. The second portion ( 14 ) at least partially surrounds the first portion ( 12 ).
1. A multimodal fiducial marker for registration of multimodal data, comprising:
a first portion comprising at least one radiopaque material; and
a second portion comprising a radioactive material in combination with a porous component capable of absorbing the radioactive material;
wherein the porous component of the second portion forms a cavity for receiving and supporting the first portion within the second portion.
2. The multimodal fiducial marker according to claim 1 , wherein the second portion substantially surrounds the first portion.
3. The multimodal fiducial marker according to claim 1 , wherein the fiducial marker is between about 0.05 and 3.00 mm in diameter.
4. The multimodal fiducial marker according to claim 1 , wherein the fiducial marker is about 1.0 mm in diameter.
5. The multimodal fiducial marker according to claim 1 , wherein the fiducial marker is identifiable in two or more of a CT, fluoroscopy, PET, micro PET, SPECT, micro SPECT, MR, or ultrasound scanner.
6. The multimodal fiducial marker according to claim 1 further comprising an attachment means for attaching the fiducial marker to a surface of a scanned subject.
7. The multimodal fiducial marker according to claim 1 further comprising a base having an adhesive for attaching the fiducial marker to a surface of a scanned subject.
8. The multimodal fiducial marker according to claim 1 , wherein the first portion is spherical.
9. The multimodal fiducial marker according to claim 1 , wherein the first portion is non-magnetic.
10. The multimodal fiducial marker according to claim 1 , wherein the first portion comprises aluminum.
11. The multimodal fiducial marker according to claim 1 , wherein the first portion comprises polyvinyl alcohol.
12. The multimodal fiducial marker according to claim 1 , wherein the second portion comprises hydrophilic paper.
13. A multimodal fiducial marker for registration of multimodal data, comprising:
a first portion comprising a radiopaque material, wherein the first portion is spherical; and
a porous second portion comprising hydrophilic paper and capable of absorbing at least one radioactive material, wherein the second portion at least partially surrounds the first portion and defines a holder for the first portion.