A positron-probe system for arterial input function quantification for positron emission tomography in humans

Research output: Contribution to journalArticle

4 Scopus citations


We developed an intra-arterial positron-probe (Β+ -probe) system to measure the arterial time-activity concentration in humans for quantitative compartmental modeling of positron emission tomography studies. Performance was characterized in vitro, by using a uniform phantom to calculate dead time, linearity, and absolute detector sensitivity. In vitro evaluations in a uniform phantom showed a system dead time of 2.5 μs, linear regression between measured and true count rates with R2 =0.999, and detector sensitivity of 6.9-7.0 countss kBq-1 ml. These met or exceeded values of previously reported systems.

Original languageEnglish (US)
Article number064301
JournalReview of Scientific Instruments
Issue number6
StatePublished - Jul 10 2008


ASJC Scopus subject areas

  • Instrumentation

Cite this