Influence of Time-of-Flight Kernel Accuracy in TOF-PET Reconstruction

2006 ◽  
Author(s):  
Margaret E. Daube-Witherspoon ◽  
Suleman Surti ◽  
Samuel Matej ◽  
Matthew Werner ◽  
Shridhar Jayanthi ◽  
...  
Keyword(s):  
Time Of Flight ◽  
Pet Reconstruction ◽  
Tof Pet

scholarly journals Significant artefactual noise in 90Y TOF-PET imaging of low specific activity phantoms arises despite increased acquisition time

2019 ◽  
Vol 6 (1) ◽  
Author(s):  
Michel Hesse ◽  
Stephan Walrand
Keyword(s):  
Pet Imaging ◽  
Specific Activity ◽  
Whole Body ◽  
Acquisition Time ◽  
Random Coincidence ◽  
Natural Crystal ◽  
Phantom Studies ◽  
Pet Reconstruction ◽  
Very High ◽  
Tof Pet

AbstractVolumes of usual PET phantoms are about four to sixfold that of a human liver. In order to avoid count rate saturation and handling of very high 90Y activity, reported TOF-PET phantom studies are performed using specific activities lower than those observed in liver radioembolization.However, due to the constant random coincidence rate induced by the natural crystal radioactivity, reduction of 90Y specific activity in TOF-PET imaging cannot be counterbalanced by increasing the acquisition time. As a result, most 90Y phantom studies reported images noisier than those obtained in whole-body 18F-FDG, and thus advised to use dedicated noise control in TOF-PET imaging post 90Y liver radioembolization.We performed acquisitions of the Jaszczak Deluxe phantom in which the hot rod insert was only partially filled with 2.6 GBq of 90Y. Standard reconstruction parameters recommended by the manufacturer for whole-body 18F-FDG PET were used.Low specific activity setups, although exactly compensated by increasing the acquisition time in order to get the same number of detected true coincidences per millilitre, were impacted by significant noise. On the other hand, specific activity and acquisition time setup similar to that used in post 90Y liver radioembolization provided image quality very close to that of whole-body 18F-FDG.This result clearly discards the use of low specific activity phantoms intended to TOF-PET reconstruction parameter optimization. Volume reduction of large phantoms can be achieved by vertically setting the phantoms or by adding Styrofoam inserts.

Systematic and Distributed Time-of-Flight List Mode PET Reconstruction

2006 ◽  
Author(s):  
W. Wang ◽  
Z. Hu ◽  
E. E. Gualtieri ◽  
M. J. Parma ◽  
E. S. Walsh ◽  
...  
Keyword(s):  
Time Of Flight ◽  
List Mode ◽  
Pet Reconstruction

Efficient 3D TOF PET Reconstruction Using View-Grouped Histo-Images: DIRECT - Direct Image Reconstruction for TOF

2006 ◽  
Author(s):  
Samuel Matej ◽  
Shridhar Jayanthi ◽  
Suleman Surti ◽  
Margaret E. Daube-Witherspoon ◽  
Gerd Muehllehner ◽  
...  
Keyword(s):  
Image Reconstruction ◽  
Direct Image ◽  
Pet Reconstruction ◽  
Tof Pet

scholarly journals Photo-Detectors for Time of Flight Positron Emission Tomography (ToF-PET)

Sensors ◽  
2010 ◽  
Vol 10 (11) ◽  
pp. 10484-10505 ◽  
Author(s):  
Virginia Ch. Spanoudaki ◽  
Craig S. Levin
Keyword(s):  
Positron Emission Tomography ◽  
Time Of Flight ◽  
Emission Tomography ◽  
Positron Emission ◽  
Photo Detectors ◽  
Tof Pet

Estimation of optimum scintillator thickness of Si-PM detectors for time-of-flight (TOF)-PET

2017 ◽  
Vol 3 (2) ◽  
pp. 027002 ◽  
Author(s):  
Kouhei Nakanishi ◽  
Kanako Kodani ◽  
Jung Yeol Yeom ◽  
Seiichi Yamamoto
Keyword(s):  
Time Of Flight ◽  
Tof Pet

Design Rules for Time of Flight Positron Emission Tomography (ToF-PET) Heterostructure Radiation Detectors

2021 ◽  
Author(s):  
Philip Krause ◽  
Edith Rogers ◽  
Muhammad Danang Birowosuto ◽  
Qibing Pei ◽  
Etiennette Auffray ◽  
...  
Keyword(s):  
Positron Emission Tomography ◽  
Time Of Flight ◽  
Radiation Detectors ◽  
Emission Tomography ◽  
Design Rules ◽  
Positron Emission ◽  
Tof Pet

Sensitivity Improvement of Time-of-Flight (ToF) PET Detector Through Recovery of Compton Scattered Annihilation Photons

2014 ◽  
Vol 61 (1) ◽  
pp. 121-125 ◽  
Author(s):  
Ashwin A. Wagadarikar ◽  
Adrian Ivan ◽  
Sergei Dolinsky ◽  
David L. McDaniel
Keyword(s):  
Time Of Flight ◽  
Sensitivity Improvement ◽  
Tof Pet
Sign in / Sign up

Export Citation Format

Share Document