Patient Weight–Based Acquisition Protocols to Optimize18F-FDG PET/CT Image Quality

…, M Onoguchi, N Matsutomo - Journal of nuclear …, 2011 - Soc Nuclear Med
The choice of injected dose of 18 F-FDG and acquisition time is important in obtaining
consistently high-quality PET images. The aim of this study was to determine the optimal …

Clinical validation of high-resolution image reconstruction algorithms in brain 18F-FDG-PET: effect of incorporating Gaussian filter, point spread function, and time-of …

…, M Onoguchi, N Matsutomo - Nuclear Medicine …, 2014 - journals.lww.com
Objectives Accurate estimation of radiopharmaceutical uptake in the brain is difficult because
of count statistics, low spatial resolution, and smoothing filter. The aim of this study was to …

Optimization of iterative reconstruction parameters with 3-dimensional resolution recovery, scatter and attenuation correction in 123I-FP-CIT SPECT

N Matsutomo, A Nagaki, F Yamao, M Sasaki - Annals of nuclear medicine, 2015 - Springer
Objective The aim of this study was to determine the optimal reconstruction parameters on
ordered-subset expectation maximization iterative reconstruction with resolution recovery, …

Validation of a calibration method using the cross-calibration factor and system planar sensitivity in quantitative single-photon emission computed tomography …

N Matsutomo, S Matsumoto, T Yamamoto… - Radiological Physics and …, 2017 - Springer
The present study aimed to validate the absolute quantitative accuracy of a calibration method
for single-photon emission computed tomography (SPECT) using cross-calibration factor (…

Impact of list-mode reconstruction and image-space point spread function correction on PET image contrast and quantitative value using SiPM-based PET/CT system

Y Shirakawa, N Matsutomo - Radiological Physics and Technology, 2023 - Springer
We evaluate the effects of list-mode reconstruction and the image-space point spread
function (iPSF) on the contrast and quantitative values of positron emission tomography (PET) …

Development of a novel body phantom with bone equivalent density for evaluation of bone SPECT

H Ichikawa, K Miwa, N Matsutomo… - … Gijutsu Gakkai Zasshi, 2015 - europepmc.org
We developed a custom-designed phantom for bone single photon emission computed
tomography (SPECT)-specific radioactivity distribution and linear attenuation coefficient. The aim …

Evaluation of bone metastasis burden as an imaging biomarker by quantitative single-photon emission computed tomography/computed tomography for assessing …

K Motegi, N Matsutomo, T Yamamoto… - Radiological Physics and …, 2020 - Springer
Metabolic bone volume (MBV), standardized uptake value (SUV), and total bone uptake (TBU)
are new imaging biomarkers for quantitative bone single-photon emission computed …

[HTML][HTML] Performance of myocardial perfusion imaging using multi-focus fan beam collimator with resolution recovery reconstruction in a comparison with conventional …

N Matsutomo, A Nagaki, M Sasaki - Asia Oceania Journal of …, 2014 - ncbi.nlm.nih.gov
Objective (s): IQ-SPECT is an advanced high-speed SPECT modality for myocardial perfusion
imaging (MPI), which uses a multi-focus fan beam collimator with resolution recovery …

Optimization of number of iterations as a reconstruction parameter in bone SPECT imaging using a novel thoracic spine phantom

M Fukami, N Matsutomo… - Journal of Nuclear …, 2021 - Soc Nuclear Med
The aim of this study was to optimize the number of iterations in bone SPECT imaging using
a novel thoracic spine phantom (ISMM phantom). Methods: The quality and quantitative …

Corneal dose reduction using a bismuth-coated latex shield over the eyes during brain SPECT/CT

N Matsutomo, M Fukunaga, H Onishi… - Journal of Nuclear …, 2017 - Soc Nuclear Med
This study aimed to determine whether a bismuth-coated latex shield (B-shield) could protect
the eyes during brain SPECT/CT. Methods: A shield containing the heavy metal bismuth (…