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GENERATION OF ACCURATE HYBRID DATASETS FOR QUANTITATIVE MOLECULAR IMAGING

机译:生成用于定量分子成像的精确混合数据集

摘要

A non-transitory computer readable medium storing instructions readable and executable by an imaging workstation (14) including at least one electronic processor (16) to perform a dataset generation method (100) operating on emission imaging data acquired of a patient for one or more axial frames at a corresponding one or more bed positions, the method comprising: (a) identifying a frame of interest from the one or more axial frames; (b) generating simulated lesion data by simulating emission imaging data for the frame of interest of at least one simulated lesion placed in the frame of interest; (c) generating simulated frame emission imaging data by simulating emission imaging data for the frame of interest of the patient; (d) determining a normalization factor comprising a ratio of the value of a quantitative metric for the simulated patient data and the value of the quantitative metric for the emission imaging data acquired of the same patient for the frame of interest; and (e) generating a hybrid data set comprising the emission imaging data acquired of the patient for the one or more axial frames at the corresponding one or more bed positions with the frame of interest replaced by a combination of the simulated lesion data scaled by the normalization factor and the emission imaging data acquired of the patient for the frame of interest.
机译:一种非暂时性计算机可读介质,其存储可由成像工作站(14)读取和执行的指令,所述成像工作站(14)包括至少一个电子处理器(16)以执行数据集生成方法(100),该数据集生成方法(100)对患者获取的一个或多个放射成像数据进行操作在相应的一个或多个床位置处的轴向框架,该方法包括:(a)从一个或多个轴向框架中识别感兴趣的框架; (b)通过对放置在关注帧中的至少一个模拟病变的关注帧的发射成像数据进行仿真来生成模拟病变数据; (c)通过模拟患者感兴趣帧的发射成像数据来产生模拟帧发射成像数据; (d)确定归一化因子,该归一化因子包括用于模拟患者数据的定量度量的值与针对同一帧从同一患者获取的放射成像数据的定量度量的值之比; (e)产生混合数据集,该混合数据集包括在对应的一个或多个床位置上针对一个或多个轴向框架从患者获取的放射成像数据,其中感兴趣的框架被由按比例缩放的模拟病变数据的组合所代替归一化因子和针对感兴趣帧获取的患者的放射成像数据。

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