[PDF][PDF] Effects of scatter and attenuation correction on quantitative assessment of regional cerebral blood flow with SPECT

H Iida, Y Narita, H Kado, A Kashikura… - Journal of Nuclear …, 1998 - Soc Nuclear Med
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 …

Hyperoxia-enhanced activation-induced hemodynamic response in human VI: an fMRI study

K Kashikura, J Kershaw, A Kashikura, T Matsuura… - …, 2000 - journals.lww.com
The effect hyperoxia had on the hemodynamic response to visual stimulation (black and
white checkerboard alternating at a frequency of 8 Hz) of human VI was investigated using a …

Hyperoxia modified activation-induced blood oxygenation level-dependent response of human visual cortex (V1): an event-related functional magnetic resonance …

K Kashikura, J Kershaw, A Kashikura, X Zhang… - Neuroscience …, 2001 - Elsevier
To investigate the effect that hyperoxia has on the blood oxygenation level-dependent (BOLD)
response to visual stimulation of human V1, an event-related functional magnetic …

Evaluation of reconstruction arc in myocardial SPECT imaging using a cardiac phantom--comparison between 360 degrees and 180 degrees arcs

K Kashikura, A Kashikura, S Terada… - Kaku igaku. The …, 1996 - europepmc.org
In order to investigate the effect of reconstruction arc on myocardial SPECT images, a series
of phantom studies was performed with and without plastic chambers simulating perfusion …

Effect of reconstruction arc in myocardial SPECT imaging--comparison between 180 degrees and 360 degrees arc--

K Kashikura, H Kobayashi, M Momose… - Kaku igaku. The …, 1996 - europepmc.org
A series of thallium-201 (201Tl) and technetium-99m (99mTc) myocardial perfusion images
with or without perfusion defects were acquired by 360 degrees arc using a triple-head …

Exposure to the technologists from radioactive patients during nuclear medicine studies

K Kashikura, S Kanaya, A Kashikura… - Kaku igaku. The …, 1996 - europepmc.org
In order to evaluate the exposure to the nuclear medicine technologists from patients who
had been administrated with radiopharmaceuticals, we measured the exposure in 5 common …

Evaluation of myocardial SPECT imaging reconstructed from 270deg projection data. A study using a cardiac phantom

K Kashikura, H Kobayashi, A Kashikura - Radioisotopes (Tokyo), 1997 - osti.gov
SPECT reconstruction is commonly performed using 360deg or 180deg projection data.
However, it is also possible to reconstruct SPECT images using other projection data arcs. The …

Time courses of MRI BOLD signals in prolonged visual stimulation. Comparison between colors and orders

K Kashikura, H Fujita, JB Kershaw, T Matsuura… - Nippon Jiki Kyomei …, 1998 - osti.gov
We investigated: the BOLD signal response during 270 second photic stimulation using an
EPI pulse sequence; the BOLD signal response for two different color checkerboards; and the …

Bayesian technique for investigating linearity in event‐related BOLD fMRI

J Kershaw, K Kashikura, X Zhang… - … in Medicine: An …, 2001 - Wiley Online Library
… The authors thank Akemi Kashikura for her help in performing the activation experiments,
and David Wright for reading the draft manuscript and for useful discussions. …

[PDF][PDF] Effects of Scatter and Attenuation Correction on Quantitative Assessment of Regional Cerebral Blood Flow with SPECT

T Ogawa, S Eberl - academia.edu
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 …