Improvement of the Sign Determination Method for Data-Driven respiratory signal in TOF-PET
Improvement of the Sign Determination Method for Data-Driven respiratory signal in TOF-PET
复制标题
TOF-PET 数据驱动呼吸信号符号判定方法的改进
DOI:
10.1109/nssmic.2017.8533018
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发表时间:
2017
期刊:
影响因子:
--
通讯作者:
Bertolli O
中科院分区:
文献类型:
--
作者:
Bertolli O
Respiratory gating and motion correction can increase resolution in PET chest imaging, but require a respiratory signal. Data-Driven (DD) methods aim to produce a respiratory signal from PET data, avoiding the use of external devices. Principal Component Analysis (PCA) is an easy to implement DD algorithm whose signals, however, are determined up to an arbitrary factor. The direction of the motion represented by its signal has to be determined. In this work we present the extension to TOF data of a previously presented sign-determination method. Furthermore, we propose the application of a selection process in sinogram space, to automatically select the areas of the data mostly affected by respiratory motion. The performance of the updated sign-determination method is evaluated on patient data, and the effect of TOF information and masking process is investigated also in terms of quality of the PCA respiratory signal.
DOI:
10.1109/nssmic.2015.7582098
发表时间:
2015
期刊:
--
影响因子:
--
作者:
Bertolli O
通讯作者:
Bertolli O
DOI:
10.1109/nssmic.2016.8069426
发表时间:
2016
期刊:
--
影响因子:
--
作者:
Bertolli O
通讯作者:
Bertolli O
影响因子:
4
作者:
Kesner AL;Schleyer PJ;Büther F;Walter MA;Schäfers KP;Koo PJ
通讯作者:
Koo PJ