English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Plus monthly

Global: Zendy Tools annual

Global: Zendy Tools monthly

Global: Zendy Free Plan

For long time non-pure beta emitters are avoided from PET imaging due toextra dose and increase in background from Compton scattering. But advent ofhigh-resolution Compton camera system opens up new domain of imaging. Variousnon-pure beta emitters are formed as beam irradiation byproduct in therapywhich can be used in online beam range verification. In this case, the numberof usable counts for imaging is generally 1-3 order lesser than normal PETscan. On the other hand, we know that in human PET scanner, 30-60\% can betissue scattered coincidences in 3D case containing 80\% single scatteredevents. In this work, we have investigated feasibility of imaging using onlysingle scattered coincidences for non-pure beta emitters in a Compton-PETsystem. The locus of tissue scatter point can be reduced to in generally twopoints after using Compton cone from both ends of 511 keV detections. Finally,annihilation point is estimated using Compton cone of 1157 keV gamma andtime-of-flight information for the 511 keV. We believe independent assessmentof underlying activity from single scattered data sets will increase confidencein image interpretation.

Image reconstruction from tissue scattered events for ${\beta}^{+}\gamma$ coincidences in Compton-PET