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Apr, 2024
有限视角(LA)CBCT重建的先验频率引导扩散模型
Prior Frequency Guided Diffusion Model for Limited Angle (LA)-CBCT Reconstruction
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Jiacheng Xie, Hua-Chieh Shao, Yunxiang Li, You Zhang
TL;DR
通过条件扩散模型和高频CT信息,我们开发了一种用于限制角度下CBCT重建的鲁棒且具有结构保持特性的方法(PFGDM),实验证明PFGDM在有限的转台角度下能够重建高质量的LA-CBCT,实现更快速、更灵活和剂量减少的CBCT扫描。
Abstract
cone-beam computed tomography
(CBCT) is widely used in image-guided radiotherapy. Reconstructing CBCTs from
limited-angle acquisitions
(LA-CBCT) is highly desired for improved imaging efficiency, dose reduction,
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