Image-based Modeling of PSF Deformation with Application to Limited Angle PET Data [0.03%]
基于图像的PSF变形建模及其在限制角度PET数据中的应用
Samuel Matej,Yusheng Li,Joseph Panetta et al.
Samuel Matej et al.
The point-spread-functions (PSFs) of reconstructed images can be deformed due to detector effects such as resolution blurring and parallax error, data acquisition geometry such as insufficient sampling or limited angular coverage in dual-pa...
Investigation of the Intrinsic Spatial Resolution of an Intensified EMCCD Scintillation Camera [0.03%]
增强型EMCCD闪烁相机的固有空间分辨率研究
L J Meng,G Fu
L J Meng
In this paper, we present an experimental and Monte Carlo investigation of the intrinsic spatial resolution that can be achieved with the intensified electron-multiplying charge-coupled device (I-EMCCD) gamma camera [1]-[4]. This detector h...
Effect of Using 2mm Voxels on Observer Performance for PET Lesion Detection [0.03%]
2毫米体素使用对PET病灶检测的人工观察者性能的影响研究
A Michael Morey,Frédéric Noo,Dan J Kadrmas
A Michael Morey
Positron emission tomography (PET) images are typically reconstructed with an in-plane pixel size of approximately 4mm for cancer imaging. The objective of this work was to evaluate the effect of using smaller pixels on general oncologic le...
Stability of the Baseline Holder in Readout Circuits For Radiation Detectors [0.03%]
辐射探测器读出电路中保持基线稳定性的研究
Y Chen,Y Cui,P O&#x;Connor et al.
Y Chen et al.
Baseline holder (BLH) circuits are used widely to stabilize the analog output of application-specific integrated circuits (ASICs) for high-count-rate applications. The careful design of BLH circuits is vital to the overall stability of the ...
LROC Investigation of Three Strategies for Reducing the Impact of Respiratory Motion on the Detection of Solitary Pulmonary Nodules in SPECT [0.03%]
基于SPECT图像三种降低呼吸运动对肺部孤立结节检测影响的方法研究:LROC分析
Mark S Smyczynski,Howard C Gifford,Joyoni Dey et al.
Mark S Smyczynski et al.
The objective of this investigation was to determine the effectiveness of three motion reducing strategies in diminishing the degrading impact of respiratory motion on the detection of small solitary pulmonary nodules (SPN) in single photon...
Modeling the respiratory motion of solitary pulmonary nodules and determining the impact of respiratory motion on their detection in SPECT imaging [0.03%]
肺孤立结节呼吸运动的建模及其对SPECT图像检测的影响研究
Mark S Smyczynski,Howard C Gifford,Andre Lehovich et al.
Mark S Smyczynski et al.
The objectives of this investigation were to model the respiratory motion of solitary pulmonary nodules (SPN) and then use this model to determine the impact of respiratory motion on the localization and detection of small SPN in SPECT imag...
Design of a Multi-Pinhole Collimator for I-123 DaTscan Imaging on Dual-Headed SPECT Systems in Combination with a Fan-Beam Collimator [0.03%]
一种用于双探头SPECT系统上的I-123多孔准直器的新型扇形束准直器组合设计方法
Michael A King,Joyeeta M Mukherjee,Arda Könik et al.
Michael A King et al.
For the 2011 FDA approved Parkinson's Disease (PD) SPECT imaging agent I-123 labeled DaTscan, the volume of interest (VOI) is the interior portion of the brain. However imaging of the occipital lobe is also required with PD for calculation ...
Junwei Du,Yongfeng Yang,Xiaowei Bai et al.
Junwei Du et al.
The performance of an 8 × 8 array of 6.0 × 6.0 mm2 (active area) SiPMs was evaluated for PET applications using crystal arrays with different pitch sizes (3.4 mm, 1.5 mm, 1.35 mm and 1.2 mm) and custom designed five-channel front-end read...
A Fast Experimental Scanner for Proton CT: Technical Performance and First Experience with Phantom Scans [0.03%]
一种快速的质子CT实验扫描仪：技术性能与实体扫描初步结果分析
Robert P Johnson,Vladimir Bashkirov,Langley DeWitt et al.
Robert P Johnson et al.
We report on the design, fabrication, and first tests of a tomographic scanner developed for proton computed tomography (pCT) of head-sized objects. After extensive preclinical testing, pCT is intended to be employed in support of proton th...
Architecture and Implementation of OpenPET Firmware and Embedded Software [0.03%]
开放PET固件和嵌入式软件的架构与实现
Faisal T Abu-Nimeh,Jennifer Ito,William W Moses et al.
Faisal T Abu-Nimeh et al.
OpenPET is an open source, modular, extendible, and high-performance platform suitable for multi-channel data acquisition and analysis. Due to the flexibility of the hardware, firmware, and software architectures, the platform is capable of...