Samrat Dey,Thomas K Lewellen,Robert S Miyaoka et al.
Samrat Dey et al.
The recent realization of Silicon Photomultiplier (SiPM) devices as solid-state detectors for Positron Emission Tomography holds the promise of improving image resolution, integrating a significant portion of the interface electronics, and ...
Optimization of a Model Corrected Blood Input Function from Dynamic FDG-PET Images of Small Animal Heart In Vivo [0.03%]
基于小动物在体心脏动态氟脱氧葡萄糖正电子发射断层影像的校正血液输入函数模型优化
Min Zhong,Bijoy K Kundu
Min Zhong
Quantitative evaluation of dynamic Positron Emission Tomography (PET) of mouse heart in vivo is challenging due to the small size of the heart and limited intrinsic spatial resolution of the PET scanner. Here, we optimized a compartment mod...
Tracker Readout ASIC for Proton Computed Tomography Data Acquisition [0.03%]
一种质子计算机断层扫描数据获取的径迹探测读出ASIC
Robert P Johnson,Joel Dewitt,Cole Holcomb et al.
Robert P Johnson et al.
A unique CMOS chip has been designed to serve as the front-end of the tracking detector data acquisition system of a pre-clinical prototype scanner for proton computed tomography (pCT). The scanner is to be capable of measuring one to two m...
Evaluation of the Timing Properties of a High Quantum Efficiency Photomultiplier Tube [0.03%]
高量子效率光电倍增管时间特性的测试与分析
Qiyu Peng,Woon-Seng Choong,W William Moses
Qiyu Peng
We measured the timing resolution of 189 R9800-100 photomultiplier tubes (PMTs), which are a SBA (Super Bialkali, high quantum efficiency) variant of the R9800 high-performance PMT manufactured by Hamamatsu Photonics, and correlated their t...
Mike Rozler,Wei Chang
Mike Rozler
Compared to imaging the heart with conventional cameras, dedicated cardiac SPECT systems can achieve much higher performance through use of a small field of view. To realize this potential, however, the heart must be reliably placed in the ...
Temperature dependent operation of PSAPD-based compact gamma camera for SPECT imaging [0.03%]
基于PSAPD的SPECT成像微型γ相机的温度依赖性运行特性研究
Sangtaek Kim,Mickel McClish,Fares Alhassen et al.
Sangtaek Kim et al.
We investigated the dependence of image quality on the temperature of a position sensitive avalanche photodiode (PSAPD)-based small animal single photon emission computed tomography (SPECT) gamma camera with a CsI:Tl scintillator. Currently...
Feasibility of Using Distal Endpoints for In-room PET Range Verification of Proton Therapy [0.03%]
使用远端终点进行质子治疗室内PET射程验证的可行性研究
Kira Grogg,Xuping Zhu,Chul Hee Min et al.
Kira Grogg et al.
In an effort to verify the dose delivery in proton therapy, Positron Emission Tomography (PET) scans have been employed to measure the distribution of β+ radioactivity produced from nuclear reactions of the protons with native nuclei. Beca...
New Theoretical Results on Channelized Hotelling Observer Performance Estimation with Known Difference of Class Means [0.03%]
具有已知均值差的通道化Hotelling观测器性能估计的新理论结果
Adam Wunderlich,Frédéric Noo
Adam Wunderlich
Task-based assessments of image quality constitute a rigorous, principled approach to the evaluation of imaging system performance. To conduct such assessments, it has been recognized that mathematical model observers are very useful, parti...
DOI Determination by Rise Time Discrimination in Single-Ended Readout for TOF PET Imaging [0.03%]
基于单端读出的TOF-PET成像中时间飞行测定中的上升时间鉴别法确定DOI
R I Wiener,S Surti,J S Karp
R I Wiener
Clinical TOF PET systems achieve detection efficiency using thick crystals, typically of thickness 2-3cm. The resulting dispersion in interaction depths degrades spatial resolution for increasing radial positions due to parallax error. Furt...
Design Study of a Whole-Body PET Scanner with Improved Spatial and Timing Resolution [0.03%]
一种改进了空间及时间分辨率的全身PET扫描仪的设计研究
S Surti,Adam R Shore,Joel S Karp
S Surti
Current state-of-art whole-body PET scanners achieve a system spatial resolution of 4-5 mm with limited sensitivity. Since the reconstructed spatial resolution and image quality are limited by the count statistics, there has not been a sign...