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US 2024/0197267 A1Published application
Cardiac gated digital tomosynthesis
OwnerDavid H. FOOS, Levon O. VOGELSANG +1inventors
InventorsDavid H. FOOS, Levon O. VOGELSANG, Xiaohui WANG
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Abstract
A plurality of radiographic cardiac images of a living patient are captured and grouped according to a cardiac phase depicted in each of the captured images. A 3D cardiac image is then reconstructed for each phase group. A 4D motion reconstruction is generated and displayed using the plurality of 3D reconstructions. A 3D reconstruction using all of the plurality of cardiac images may be used as an alignment check.
Claims12
Method comprising:
- positioning an x-ray tube head and a digital radiographic detector about a patient to be radiographically imaged, the tube head comprising a plurality of x-ray sources;
- firing the plurality of x-ray sources in a preselected timed sequence to capture a plurality of radiographic cardiac images of the patient over a plurality of cardiac cycles;
- separating the captured cardiac images each into one of a plurality of phase groups according to a cardiac phase of said captured radiographic cardiac images;
- and
- reconstructing a 3D cardiac image for each of the plurality of phase groups using the corresponding separated cardiac images.
2 more elements
Method comprising:
- capturing a plurality of radiographic cardiac images of a living patient;
- assigning each of the captured cardiac images into one of a plurality of phase groups according to a cardiac phase of said each of the captured cardiac images;
- and
- reconstructing a 3D cardiac image for each of the plurality of phase groups using the corresponding assigned captured cardiac images.
1 more element
Method comprising:
- capturing a plurality of radiographic cardiac images of a living patient at a rate of at least four radiographic images per cardiac cycle over at least four cardiac cycles;
- assigning each of the captured cardiac images into one of at least four phase groups according to a cardiac phase of said each of the captured cardiac images;
- and
- reconstructing a 3D cardiac image for each of the plurality of phase groups using the corresponding captured cardiac images.
1 more element
Dependencies are inferred from the claim text.