Devices and methods for evaluation of deformable image registration (DIR) systems
Apparatus and methods for evaluating the accuracy of deformable image registration (DIR) systems. Certain aspects may include a base and a support member coupled to the base, where the support member is configured to rotate about a first axis with respect to the base. Particular aspects may include a housing coupled to the support member, where the housing is configured to rotate about a second axis with respect to the support member. Specific aspects may include an insert coupled to the housing, where the insert is configured to rotate about a third axis with respect to the housing.
1. A device for testing the accuracy of deformable image registration systems, the device comprising:
a base;
a support member coupled to the base, wherein the support member is configured to rotate about a first axis with respect to the base;
a housing coupled to the support member, wherein the housing is configured to rotate about a second axis with respect to the support member; and
an insert coupled to the housing, wherein the insert is configured to rotate about a third axis with respect to the housing.
2. The device of claim 1 further comprising a first locking mechanism configured to lock the support member housing in a plurality of rotated positions with respect to the base.
3. The device of claim 2 further comprising a first plurality of indications to identify the plurality of rotated positions.
4. The device of claim 1 further comprising a second locking mechanism configured to lock the housing in a plurality of angled positions with respect to the support member.
5. The device of claim 4 further comprising a second plurality of indications to identify the plurality of angled positions.
6. The device of claim 1 wherein the insert comprises a cavity and a seal configured to seal the cavity.
7. The device of claim 6 wherein the cavity is filled with a liquid.
8. The device of claim 6 wherein the cavity is filled with a solid.
9. The device of claim 6 wherein the cavity has an oval cross-section shape.
10. The device of claim 6 wherein the cavity has a circular cross-section shape.
11. The device of claim 1 wherein the first axis is vertical and the second axis and third axis are horizontal.
12. The device of claim 1 wherein the insert is a first insert and wherein the device further comprises:
a second insert coupled to the housing, wherein the second insert is configured to rotate about a fourth axis with respect to the housing.
13. The device of claim 12 wherein the fourth axis is a horizontal axis.