Waveform-Sampling Electronics for a Whole-Body Time-of-Flight PET Scanner [0.03%]
一种全数字采样电子线路用于全身TOF-PET scanner
W J Ashmanskas,B C LeGeyt,F M Newcomer et al.
W J Ashmanskas et al.
Waveform sampling is an appealing technique for instruments requiring precision time and pulse-height measurements. Sampling each PMT waveform at oscilloscope-like rates of several gigasamples per second enables one to process PMT signals d...
A Study of Position-Sensitive Solid-State Photomultiplier Signal Properties [0.03%]
关于位置敏感固态光电倍增管信号特性的研究
Jeffrey P Schmall,Junwei Du,Martin S Judenhofer et al.
Jeffrey P Schmall et al.
We present an analysis of the signal properties of a position-sensitive solid-state photomultiplier (PS-SSPM) that has an integrated resistive network for position sensing. Attractive features of PS-SSPMs are their large area and ability to...
Parallel Beam Approximation for Calculation of Detection Efficiency of Crystals in PET Detector Arrays [0.03%]
PET探头晶体检测效率计算的平行束近似方法研究
Sergey Komarov,Tae Yong Song,Heyu Wu et al.
Sergey Komarov et al.
In this work we propose a parallel beam approximation for the computation of the detection efficiency of crystals in a PET detector array. In this approximation the detection efficiency of a crystal is estimated using the distance between s...
Generalization Evaluation of Machine Learning Numerical Observers for Image Quality Assessment [0.03%]
机器学习数值观察器的图像质量评估通用化评价
Mahdi M Kalayeh,Thibault Marin,Jovan G Brankov
Mahdi M Kalayeh
In this paper, we present two new numerical observers (NO) based on machine learning for image quality assessment. The proposed NOs aim to predict human observer performance in a cardiac perfusion-defect detection task for single-photon emi...
Design and performance of a high spatial resolution, time-of-flight PET detector [0.03%]
高空间分辨率、飞行时间型PET探测器的设计与性能分析
Srilalan Krishnamoorthy,Benjamin LeGeyt,Matthew E Werner et al.
Srilalan Krishnamoorthy et al.
This paper describes the design and performance of a high spatial resolution PET detector with time-of-flight capabilities. With an emphasis on high spatial resolution and sensitivity, we initially evaluated the performance of several 1.5 ...
Bias atlases for segmentation-based PET attenuation correction using PET-CT and MR [0.03%]
基于PET-CT和MR的衰减校正偏置图 atlas研究
Jinsong Ouyang,Se Young Chun,Yoann Petibon et al.
Jinsong Ouyang et al.
This study was to obtain voxel-wise PET accuracy and precision using tissue-segmentation for attenuation correction. We applied multiple thresholds to the CTs of 23 patients to classify tissues. For six of the 23 patients, MR images were al...
Automatic Alignment of Myocardial Perfusion Images With Contrast-Enhanced Cardiac Computed Tomography [0.03%]
基于对比度增强的心脏CT的心肌灌注图像自动配准方法研究
Tracy L Faber,Cesar A Santana,Marina Piccinelli et al.
Tracy L Faber et al.
Explicit fusion of perfusion data from Positron Emission Tomography (PET) or Single Photon Emission Computed Tomography (SPECT) with coronary artery anatomy from Computed Tomographic Coronary Angiography (CTA) has been shown to improve the ...
Samrat Dey,Lushon Banks,Shaw-Pin Chen et al.
Samrat Dey et al.
Our lab has previously reported on novel board-level readout electronics for an 8×8 silicon photomultiplier (SiPM) array featuring row/column summation technique to reduce the hardware requirements for signal processing. We are taking the ...
MRI Investigation of the Linkage Between Respiratory Motion of the Heart and Markers on Patient's Abdomen and Chest: Implications for Respiratory Amplitude Binning List-Mode PET and SPECT Studies [0.03%]
心脏呼吸运动与患者腹部和胸部标记之间关联的磁共振研究：对呼吸幅度分箱列表模式PET和SPECT研究的影响
Paul Dasari,Karen Johnson,Joyoni Dey et al.
Paul Dasari et al.
Respiratory motion of the heart impacts the diagnostic accuracy of myocardial-perfusion emission-imaging studies. Amplitude binning has come to be the method of choice for binning list-mode based acquisitions for correction of respiratory m...
Estimation of 6-Degree-of-Freedom (6-DOF) Rigid-Body Patient Motion From Projection Data by the Principal-Axes Method in Iterative Reconstruction [0.03%]
基于主轴法的迭代重建投影数据求解患者六自由度刚体运动参数的估计方法
Bing Feng,Michael A King
Bing Feng
We developed a unique method for estimating and compensating rigid-body translations and rotations from scatter and-attenuation-compensated projection data in iterative reconstruction when multiple projection angles are acquired at the same...