Objective: The radioactivity count distribution in the brain must be determined accurately to
accurately measure cerebral blood flow (CBF). Scatter and attenuation are factors that …

To characterize a recently introduced cerebral perfusion tracer, 99mTc-bicisate, single
photon emission computed tomography (SPECT) images of 99mTc-bicisate were compared …

IJLmaps in the lower slices due to the airways and in the higher slices due to increased skull
attenuation. However, differences were< 5% in all cerebral tissue regions, thus assumption …

Single photon emission computed tomography (SPECT) is used widely in clinical studies.
However, the technique requires image reconstruction and the methods for correcting …

The transmission dependent convolution subtraction method which is one of the methods for
scatter correction of SPECT was applied to the assessment of CBF using SPECT and I-123 …

Purpose The aim of this study was to elucidate the regional differences between brain
perfusion single photon emission computed tomography (SPECT) images reconstructed …

The development of whole-body cadmium zinc telluride (CZT) cameras contributes to 28
recent advances in single photon emission computed tomography (SPECT) imaging, owing …

Objectives Three accumulative tracers, iodine-123-labeled N-isopropyl-p-iodoamphetamine
(I-123-IMP), technetium-99m-labeled hexamethylpropyleneamineoxime (Tc-99m-HMPAO) …

RESULTS The time taken to calculate one slice functional images by the present technique
was about 3 min when the inte gration interval was 1 sec. This calculation speed is about ten …

The aim of this study was to compare the accuracy and reliability of simple methods of
quantifying regional cerebral blood flow (rCBF) with 123l-labeled/V-isopropyl-p …