Theoretical modeling and numerical simulation of a light-field detector for x-ray differential phase contrast imaging [0.03%]
用于x射线微分相位对比成像的光场探测器理论建模与数值模拟
Yuhang Tan,Jiongtao Zhu,Xin Zhang et al.
Yuhang Tan et al.
Background: Most recently, a novel color-encoding light-field detector based on perovskite material has been demonstrated for x-ray differential phase contrast (DPC) imaging. However, it lacks performance evaluation and c...
Evaluation of motion correction on myocardial [1 8F]F-AraG PET uptake using data-driven respiratory gating [0.03%]
基于数据驱动的呼吸门控法评价运动校正对心肌[1 8F]F-AraG摄取显像的影响
Hannah Kim,Ryan Tang,Uttam M Shrestha et al.
Hannah Kim et al.
Background: [1 8F]F-AraG (radio-fluorinated 9-β-D-arabinofuranosylguanine) is a PET radiotracer for imaging T-cell activation with emerging applications in myocardial imaging. Cardiac PET is particularly susceptible to r...
Sergio Morató,Yeon Soo Yeom,Les R Folio et al.
Sergio Morató et al.
Background: Computed tomography (CT) is sometimes necessary during pregnancy to diagnose and treat urgent conditions, but accurate fetal dose estimation remains challenging. Prior studies often relied on uterus dose or si...
Lighting up FLASH and beyond: TLD response across four orders of magnitude in proton dose rate [0.03%]
从FLASH到超越FLASH——四种不同质子剂量率下的肿瘤低氧水平响应关系研究
Fada Guan,Jason Tang,Ally Brookner et al.
Fada Guan et al.
Background: Thermoluminescent dosimeters (TLDs) are widely used for proton therapy dosimetry and remote audits. Yet their response under pulsed delivery and the ultrahigh dose rates relevant to proton FLASH remains incomp...
Ismail Melik Turker,Isa Yildirim
Ismail Melik Turker
Background: Projection and backprojection are fundamental operators in tomographic image reconstruction. Existing approaches-namely pixel-driven (PD), ray-driven (RD), and distance-driven (DD)-are subject to well-known tr...
Estimation of proton stopping power from principal components of dual-energy CT virtual monoenergetic images [0.03%]
基于双能量CT虚拟单能图像主成分的质子注量估计方法研究
Mohsen Beikali Soltani,Esther Bär,Edrine Damulira et al.
Mohsen Beikali Soltani et al.
Background: DECT systems can perform projection-domain decomposition to generate quantitative maps of electron density ( ρ e ) and effective atomic number ( Z eff ) for proton stopping power ratio (SPR) estimation....
Towards automated dose-guided patient positioning at clinical timescale in head-and-neck cancer proton radiotherapy [0.03%]
面向临床时间尺度的头颈部癌症质子放疗自动剂量引导患者定位方法研究
Femke Oosterhof,Gabriel Guterres Marmitt,Alexander M Kamerbeek et al.
Femke Oosterhof et al.
Background: In intensity modulated proton therapy (IMPT) accurate patient positioning prior to treatment delivery is important to ensure that the prescribed dose is delivered as intended. Typically, in-room 3D imaging is ...
Yinuo Liu,Yang Hu,Pengbo He et al.
Yinuo Liu et al.
Background: Online adaptive radiotherapy (OART) improves the precision of carbon ion therapy by enabling dynamic treatment plan adjustment. However, its implementation is critically constrained by the limited development ...
Accurate estimation of intravoxel incoherent motion parameters based on implicit neural representation [0.03%]
基于隐式神经表示的准确估计体素内不相干运动参数
Yunxiang Li,Yen-Peng Liao,Yan Dai et al.
Yunxiang Li et al.
Background: Intravoxel incoherent motion (IVIM) diffusion-weighted imaging has important value in treatment response monitoring. However, traditional voxel-wise independent fitting methods are highly sensitive to noise an...