首页> 外文会议>2013 IEEE Nuclear Science Symposium and Medical Imaging Conference >BrachyView: Tomographic reconstruction using timepix detectors in post-implant dosimetry checks for permanent prostate brachytherapy implants
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BrachyView: Tomographic reconstruction using timepix detectors in post-implant dosimetry checks for permanent prostate brachytherapy implants

机译:BrachyView:在永久性前列腺近距离放射治疗植入物的植入后剂量测定中使用timepix探测器进行断层扫描重建

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摘要

Computed tomography imaging is a mandatory part of the permanent prostate brachytherapy procedure. It is used as a post-implant dosimetric check to evaluate the quality of the implant. It is proposed that by using a novel assembly of multiple high-resolution pixelated detectors Timepix, an in-body probe can be used as a multi-modality imaging device. Preliminary phantom studies of a PMMA prostate phantom with implanted dummy I-125 seeds (Oncura Model 6711) have shown a qualitative confirmation of three-dimensional tomographic reconstruction from limited angles and limited field of view based on iterative reconstruction algorithms.
机译:计算机断层扫描成像是永久性前列腺近距离放射治疗程序的必不可少的部分。它用作植入后的剂量检查,以评估植入物的质量。提出通过使用多个高分辨率像素化检测器Timepix的新颖组件,可以将体内探针用作多模态成像设备。植入假人I-125种子的PMMA前列腺体模的初步体模研究(Oncura模型6711)已从有限的角度和有限的视域基于迭代重建算法对三维断层图像进行了定性确认。

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