-
公开(公告)号：US11769277B2
公开(公告)日：2023-09-26
申请号：US16650941
申请日：2018-09-28
CPC分类号： G06T11/005 , G06N3/08 , G06T2210/41
摘要： An imaging system includes a computed tomography (CT) imaging device (10) (optionally a spectral CT), an electronic processor (16, 50), and a non-transitory storage medium (18, 52) storing a neural network (40) trained on simulated imaging data (74) generated by Monte Carlo simulation (60) including simulation of at least one scattering mechanism (66) to convert CT imaging data to a scatter estimate in projection space or to convert an uncorrected reconstructed CT image to a scatter estimate in image space. The storage medium further stores instructions readable and executable by the electronic processor to reconstruct CT imaging data (12, 14) acquired by the CT imaging device to generate a scatter-corrected reconstructed CT image (42). This includes generating a scatter estimate (92, 112, 132, 162, 182) by applying the neural network to the acquired CT imaging data or to an uncorrected CT image (178) reconstructed from the acquired CT imaging data.
-
2.发明授权公开(公告)号：US11510641B2
公开(公告)日：2022-11-29
申请号：US16965201
申请日：2019-01-30
发明人： Chuanyong Bai , Yang-Ming Zhu , Sheng Lu , Shiyu Xu , Hao Dang , Hao Lai , Douglas B. McKnight , Hui Wang
摘要： A non-spectral computed tomography scanner (102) includes a radiation source (112) configured to emit x-ray radiation, a detector array (114) configured to detect x-ray radiation and generate non-spectral data, and a memory (134) configured to store a spectral image module (130) that includes computer executable instructions including a neural network trained to produce spectral volumetric image data. The neural network is trained with training spectral volumetric image data and training non-spectral data. The non-spectral computed tomography scanner further includes a processor (126) configured to process the non-spectral data with the trained neural network to produce spectral volumetric image data.
-
3.发明授权公开(公告)号：US11986336B2
公开(公告)日：2024-05-21
申请号：US17979061
申请日：2022-11-02
发明人： Chuanyong Bai , Yang-Ming Zhu , Sheng Lu , Shiyu Xu , Hao Dang , Hao Lai , Douglas McKnight , Hui Wang
摘要： A non-spectral computed tomography scanner includes a radiation source configured to emit x-ray radiation, a detector array configured to detect x-ray radiation and generate non-spectral data, and a memory configured to store a spectral image module that includes computer executable instructions including a neural network trained to produce spectral volumetric image data. The neural network is trained with training spectral volumetric image data and training non-spectral data. The non-spectral computed tomography scanner further includes a processor configured to process the non-spectral data with the trained neural network to produce spectral volumetric image data.
-
公开(公告)号：US11813101B2
公开(公告)日：2023-11-14
申请号：US16965225
申请日：2019-01-30
发明人： Hao Dang , Shiyu Xu , Chuanyong Bai , Hui Wang , Douglas B. McKnight
CPC分类号： A61B6/482 , G06T5/009 , G06T2207/10081 , G06T2207/20081 , G06T2207/20084 , G06T2207/30004
摘要： A spectral computed tomography imaging system (102) includes a radiation source (112) configured to emit x-ray radiation and a detector array (114) configured to detect x-ray radiation and generate spectral data. The spectral imaging system further includes a memory (134) configured to store a virtual non-contrast image enhancing module (136) that includes computer executable instructions including a neural network trained to produce image quality enhanced virtual non-contrast images. The neural network is trained with training spectral data and training non-contrast-enhanced images generated from a non-contrast-enhanced scan. The spectral imaging system further includes a processor (132) configured to process the spectral data with the trained neural network to produce the image quality enhanced virtual non-contrast images.
-
-
-
搜索结果
4 条记录 (耗时 0.013 秒)
