Systems and methods for x-ray computed tomography

A method of performing X-ray computed tomography, comprising:

• scanning, with an X-ray emitter, a subject that includes a plurality of fiducials;
• capturing a plurality of 2-dimensional views by an X-ray detector while scanning the subject with the X-ray emitter;
• filtering captured 2-dimensional views to obtain a set of imaged fiducials;
• generating a projection transformation matrix associated with each captured 2-dimensional view based at least in part on the set of imaged fiducials;
• applying each generated projection transformation matrix to data associated with each captured 2-dimensional view;
• and
• reconstructing a digital representation of the subject from the data after application of each projection transformation matrix.

A method of performing X-ray computed tomography, comprising:

• performing a scout scan of a subject including
• scanning the subject with an X-ray emitter, and
• capturing a first plurality of 2-dimensional views by an X-ray detector;
• determining a starting point for a full production scan of the subject based at least on the scout scan;
• performing a full production scan of the subject including
• scanning the subject with the X-ray emitter based at least in part on the determined starting point, and
• capturing a second plurality of 2-dimensional views by the X-ray detector;
• generating a projection transformation matrix associated with each of the second plurality of captured 2-dimensional views;
• applying each generated projection transformation matrix to data associated with each of the second plurality of captured 2-dimensional views;
• and
• reconstructing a digital representation of the subject from the data after application of each projection transformation matrix,
• wherein the captured second plurality of 2-dimensional views are substantially greater in number than the captured first plurality of 2-dimensional views.

A system, comprising:

• a robotic arm configured to rotate an X-ray emitter in a curvilinear path about a subject while the X-ray emitter scans the subject;
• an X-ray detector configured to capture a plurality of 2-dimensional views while the subject is scanned by the X-ray emitter;
• and
• a computed tomography reconstruction processor configured to reconstruct a digital image of the subject from the captured plurality of 2-dimensional views,
• wherein movement of the X-ray emitter and the X-ray detector is coordinated such that the position and angle of the X-ray emitter relative to the X-ray detector remains substantially constant while the X-ray emitter scans the subject.