Papers › Improving Computed Tomography (CT) Reconstruction via 3D Shape Induction

Improving Computed Tomography (CT) Reconstruction via 3D Shape Induction

23 Aug 2022arXiv:2208.10937archive 2025-07-28

Elena Sizikova, Xu Cao, Ashia Lewis, Kenny Moise, Megan Coffee

Chest computed tomography (CT) imaging adds valuable insight in the diagnosis and management of pulmonary infectious diseases, like tuberculosis (TB). However, due to the cost and resource limitations, only X-ray images may be available for initial diagnosis or follow up comparison imaging during treatment. Due to their projective nature, X-rays images may be more difficult to interpret by clinicians. The lack of publicly available paired X-ray and CT image datasets makes it challenging to train a 3D reconstruction model. In addition, Chest X-ray radiology may rely on different device modalities with varying image quality and there may be variation in underlying population disease spectrum that creates diversity in inputs. We propose shape induction, that is, learning the shape of 3D CT from X-ray without CT supervision, as a novel technique to incorporate realistic X-ray distributions during training of a reconstruction model. Our experiments demonstrate that this process improves both the perceptual quality of generated CT and the accuracy of down-stream classification of pulmonary infectious diseases.

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array2string esizikova/medsynth_public/X2CT/CT2XRAY/xraypro.py official repository unverified MIT (permissive) · 56df8ccc78108b11 · report
bedstriping esizikova/medsynth_public/X2CT/CT2XRAY/ctxray_utils.py official repository unverified MIT (permissive) · eaae6531c847971e · report
crop_to_standard esizikova/medsynth_public/X2CT/CT2XRAY/ctpro.py official repository unverified MIT (permissive) · 4c4215270326aebc · report
get_center esizikova/medsynth_public/X2CT/CT2XRAY/xraypro.py official repository unverified MIT (permissive) · 1d52f1a2253052da · report
resample esizikova/medsynth_public/X2CT/CT2XRAY/ctpro.py official repository unverified MIT (permissive) · 0a218f32d6309cc7 · report

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3D ReconstructionCT ReconstructionComputed Tomography (CT)DiversityManagement

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