Zobrazeno 1 - 10
of 931
pro vyhledávání: '"Sinusas, A. J."'
Autor:
Xie, Huidong, Guo, Liang, Velo, Alexandre, Liu, Zhao, Liu, Qiong, Guo, Xueqi, Zhou, Bo, Chen, Xiongchao, Tsai, Yu-Jung, Miao, Tianshun, Xia, Menghua, Liu, Yi-Hwa, Armstrong, Ian S., Wang, Ge, Carson, Richard E., Sinusas, Albert J., Liu, Chi
Rb-82 is a radioactive isotope widely used for cardiac PET imaging. Despite numerous benefits of 82-Rb, there are several factors that limits its image quality and quantitative accuracy. First, the short half-life of 82-Rb results in noisy dynamic fr
Externí odkaz:
http://arxiv.org/abs/2409.11543
Autor:
Guo, Xueqi, Shi, Luyao, Chen, Xiongchao, Liu, Qiong, Zhou, Bo, Xie, Huidong, Liu, Yi-Hwa, Palyo, Richard, Miller, Edward J., Sinusas, Albert J., Staib, Lawrence H., Spottiswoode, Bruce, Liu, Chi, Dvornek, Nicha C.
Inter-frame motion in dynamic cardiac positron emission tomography (PET) using rubidium-82 (82-Rb) myocardial perfusion imaging impacts myocardial blood flow (MBF) quantification and the diagnosis accuracy of coronary artery diseases. However, the hi
Externí odkaz:
http://arxiv.org/abs/2402.09567
Autor:
Chen, Xiongchao, Zhou, Bo, Guo, Xueqi, Xie, Huidong, Liu, Qiong, Duncan, James S., Sinusas, Albert J., Liu, Chi
Single-Photon Emission Computed Tomography (SPECT) is widely applied for the diagnosis of coronary artery diseases. Low-dose (LD) SPECT aims to minimize radiation exposure but leads to increased image noise. Limited-view (LV) SPECT, such as the lates
Externí odkaz:
http://arxiv.org/abs/2401.13140
Autor:
Zhang, Xiaoran, Stendahl, John C., Staib, Lawrence, Sinusas, Albert J., Wong, Alex, Duncan, James S.
We propose an adaptive training scheme for unsupervised medical image registration. Existing methods rely on image reconstruction as the primary supervision signal. However, nuisance variables (e.g. noise and covisibility), violation of the Lambertia
Externí odkaz:
http://arxiv.org/abs/2312.00837
Autor:
Zhang, Xiaoran, Pak, Daniel H., Ahn, Shawn S., Li, Xiaoxiao, You, Chenyu, Staib, Lawrence H., Sinusas, Albert J., Wong, Alex, Duncan, James S.
Deep learning methods for unsupervised registration often rely on objectives that assume a uniform noise level across the spatial domain (e.g. mean-squared error loss), but noise distributions are often heteroscedastic and input-dependent in real-wor
Externí odkaz:
http://arxiv.org/abs/2312.00836
Autor:
Guo, Xueqi, Shi, Luyao, Chen, Xiongchao, Zhou, Bo, Liu, Qiong, Xie, Huidong, Liu, Yi-Hwa, Palyo, Richard, Miller, Edward J., Sinusas, Albert J., Spottiswoode, Bruce, Liu, Chi, Dvornek, Nicha C.
The rapid tracer kinetics of rubidium-82 ($^{82}$Rb) and high variation of cross-frame distribution in dynamic cardiac positron emission tomography (PET) raise significant challenges for inter-frame motion correction, particularly for the early frame
Externí odkaz:
http://arxiv.org/abs/2308.12443
Autor:
Chen, Xiongchao, Zhou, Bo, Xie, Huidong, Guo, Xueqi, Liu, Qiong, Sinusas, Albert J., Liu, Chi
Myocardial perfusion imaging (MPI) by single-photon emission computed tomography (SPECT) is widely applied for the diagnosis of cardiovascular diseases. Reducing the dose of the injected tracer is essential for lowering the patient's radiation exposu
Externí odkaz:
http://arxiv.org/abs/2305.10328
Autor:
Chen, Xiongchao, Zhou, Bo, Xie, Huidong, Guo, Xueqi, Liu, Qiong, Sinusas, Albert J., Liu, Chi
Single-Photon Emission Computed Tomography (SPECT) is widely applied for the diagnosis of ischemic heart diseases. Low-dose (LD) SPECT aims to minimize radiation exposure but leads to increased image noise. Limited-angle (LA) SPECT enables faster sca
Externí odkaz:
http://arxiv.org/abs/2305.10326
Autor:
Xie, Huidong, Liu, Zhao, Shi, Luyao, Greco, Kathleen, Chen, Xiongchao, Zhou, Bo, Feher, Attila, Stendahl, John C., Boutagy, Nabil, Kyriakides, Tassos C., Wang, Ge, Sinusas, Albert J., Liu, Chi
In nuclear imaging, limited resolution causes partial volume effects (PVEs) that affect image sharpness and quantitative accuracy. Partial volume correction (PVC) methods incorporating high-resolution anatomical information from CT or MRI have been d
Externí odkaz:
http://arxiv.org/abs/2206.12344
Dual-Branch Squeeze-Fusion-Excitation Module for Cross-Modality Registration of Cardiac SPECT and CT
Autor:
Chen, Xiongchao, Zhou, Bo, Xie, Huidong, Guo, Xueqi, Zhang, Jiazhen, Sinusas, Albert J., Onofrey, John A., liu, Chi
Single-photon emission computed tomography (SPECT) is a widely applied imaging approach for diagnosis of coronary artery diseases. Attenuation maps (u-maps) derived from computed tomography (CT) are utilized for attenuation correction (AC) to improve
Externí odkaz:
http://arxiv.org/abs/2206.05278