Noval advance non-linear descriptor and characteristic equivalency to predict CT from MRI image

Authors

  • Sowmya Bachu Sreenidhi Institute of Science and Technology Author
  • Shrutibhargava Choubey Sreenidhi Institute of Science and Technology Author
  • Abhishek Choubey Sreenidhi Institute of Science and Technology Author

Keywords:

CT calculation, KNN regression, Low-rank approximation, Non-linear descriptor, PET attenuation correction

Abstract

Attenuation correction designed for PET/MR hybrid imaging frameworks along with portion making arrangements used for MR-based radiation treatment remain testing because of lacking high-energy photon weakening data. We present a new method so as to uses the learned nonlinear neighborhood descriptors also highlight coordinating toward foresee pseudo CT pictures starting T1w along with T2w MRI information. The nonlinear neighborhood descriptors are acquired through anticipating the direct descriptors interested in the nonlinear high-dimensional space utilizing an unequivocal constituent guide also low-position guess through regulated complex regularization. The nearby neighbors of every near descriptor inside the data MR pictures are looked during an obliged spatial extent of the MR pictures among the training dataset. By that point, the pseudo-CT patches are evaluated through k-closest neighbor relapse. The planned procedure designed for pseudo-CT forecast is quantitatively broke downward on top of a dataset comprising of coordinated mind MRI along with CT pictures on or after 13 subjects.

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Published

2026-02-04

Issue

Section

Articles