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1. 发明申请

US20230065196A1 PATIENT-SPECIFIC ORGAN DOSE QUANTIFICATION AND INVERSE OPTIMIZATION FOR CT 有权
公开(公告)号：US20230065196A1
公开(公告)日：2023-03-02
申请号：US17796715
申请日：2021-02-01
申请人： Xie George Xu , Pingkun Yan , Birsen Yazici
发明人： Xie George Xu , Pingkun Yan , Birsen Yazici
IPC分类号： G06T7/10 , A61B6/03 , A61B6/00 , G06T1/20
摘要： In one embodiment, there is provided a method of optimizing image quality and organ dose for computed tomography (CT). The method includes segmenting, by an organ segmentation module, at least one organ based, at least in part, on patient image data. The method further includes determining, by a Monte Carlo dose module, a patient-specific heterogeneous dose based, at least in part, on the patient image data and based, at least in part, on a selected CT scanner data. The method further includes determining, by a patient-specific organ dose module, a patient-specific nominal organ dose for each segmented organ based, at least in part, on the patient-specific heterogeneous dose. The method further includes determining, by an inverse optimization module, at least one CT scanner parameter configured to optimize image quality and a selected patient-specific organ dose of at least one selected organ.

2. 发明授权

US06734974B2 Terahertz imaging with dynamic aperture 有权
标题翻译：太赫兹成像与动态光圈
公开(公告)号：US06734974B2
公开(公告)日：2004-05-11
申请号：US10056866
申请日：2002-01-25
申请人： Zhiping Jiang , Qin Chen , Xie George Xu , Xi-Cheng Zhang
发明人： Zhiping Jiang , Qin Chen , Xie George Xu , Xi-Cheng Zhang
IPC分类号： G01N2100
CPC分类号： G01N21/3581 , G02F1/3534 , G02F2203/13
摘要： A method of improving spatial resolution of a pump-probe terahertz (THz) imaging system for producing an image of an object. The method provides a chopped optical gating beam focused on a semiconductive layer that is either part of the object or a discrete layer placed over the object. The gating beam is focused on a gating pulse focal spot having a diameter effective to cause measurable modulation in transmission of a THz beam through the semiconductive layer when the gating pulse is on as compared to when the gating pulse is off, creating alternating modulated THz beams for detection and processing. Systems for performing the method in transmission and reflection modes are also described.
摘要翻译：一种提高泵浦太赫兹（THz）成像系统的空间分辨率的方法，用于产生物体的图像。该方法提供了聚焦在作为物体的一部分或放置在物体上的离散层的半导体层的切割的光学门控光束。选通光束聚焦在门控脉冲焦点上，该脉冲焦点有效地在与选通脉冲关闭时相比门控脉冲打开时在THz光束透过半导体层的传输中产生可测量的调制，产生交替调制的THz光束用于检测和处理。还描述了用于在传输和反射模式中执行该方法的系统。

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