(12), Laubenbacher et al. report no statisticallysignificantdifferencein tracer distribution
dependent on gen derinpatientswithalowlikelihoodof CAD. This resultis expecteddue to the …

It is a well-known fact that attenuation correction is the prerequisite of quantification in PET. It
is, however, also the (necessarily related, but even more obvious) requirement that a …

There is probably no technical invention which has changed more within the medical world
than the discovery of the x-rays by Wilhelm Conrad Röntgen in 1895 who explicitly never …

Attenuation correction is a cornerstone in quantification of PET data. It ensures that some
more or less arbitrary counts per seconds are converted to true Becquerel per milliliter which …

An assessment of what the future holds for cardiac positron emission tomography (PET) is,
at best, challenging. Often the past is a prelude to the future. Yet the current rapid and …

MATERIALS AND METHODS Theory We studied two effects of transmission smoothing:(a)
reduction in the noise-induced bias in measured activity concentration and (b) artifactual …

Introduction Although positron emission tomography PET–MR imaging is emerging into
clinical practice, many aspects of this imaging technique such as attenuation correction have …

About a decade ago, the dream of many nuclear physicians, radiologists, and even
engineers came true and the first fully integrated, commercially available PET/MRI device …

Results: Two patternsof artifactualinhomogeneitywere found: a depression in activity at the
antero-apex and an elevation in activity in the free wall compared with the septum. Thus, in …

Methods: We evaluated two methods for the correction of resolu tion effects in PET perfusion
13NH3-ammonia images. In one model, the spillover and recovery coefficients are …