Zobrazeno 1 - 10
of 18
pro vyhledávání: '"Akira Maebatake"'
Autor:
Keishin Morita, Akira Maebatake, Rina Iwasaki, Yuki Shiotsuki, Kazuhiko Himuro, Shingo Baba, Masayuki Sasaki
Publikováno v:
Asia Oceania Journal of Nuclear Medicine and Biology, Vol 6, Iss 2, Pp 120-128 (2018)
Objective(s): The purpose of this study was to examine the optimal reconstructionparameters for brain dopamine transporter SPECT images obtained with a fanbeam collimator and compare the results with those obtained by using parallel-holecollimators.M
Externí odkaz:
https://doaj.org/article/d38e2b4ee22f44a4a0631c8774aaf5e7
Autor:
Akira Maebatake, Ayaka Imamura, Yui Kodera, Yasuo Yamashita, Kazuhiko Himuro, Shingo Baba, Kenta Miwa, Masayuki Sasaki
Publikováno v:
Asia Oceania Journal of Nuclear Medicine and Biology, Vol 4, Iss 2, Pp 72-80 (2016)
Objective(s): The aim of this study was to determine the optimal reconstruction parameters for iterative reconstruction in different devices and collimators for dopamine transporter (DaT) single-photon emission computed tomography (SPECT). The result
Externí odkaz:
https://doaj.org/article/d5c59e622f3f418b9665871e940c2e30
Autor:
Toshiki Takeshita, Daisuke Kidera, Shohei Mikasa, Yuji Tsutsui, Shingo Baba, Go Akamatsu, Kenta Miwa, Akira Maebatake, Masayuki Sasaki, Keishin Morita
Publikováno v:
Annals of Nuclear Medicine. 30:393-399
The purpose of this study was to investigate the influence of respiratory motion on the evaluation of the intratumoral heterogeneity of FDG uptake using cumulative SUV-volume histogram (CSH) and fractal analyses. We used an NEMA IEC body phantom with
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2698285cbd001bcc496e3a668252b12e
https://doi.org/10.1007/s12149-016-1071-1
https://doi.org/10.1007/s12149-016-1071-1
Autor:
Atsushi Nakanishi, Hideo Yamamoto, Shota Takemoto, Koji Murakami, Akira Maebatake, Yuki Yamashiro, Shuhei Karube
Publikováno v:
Annals of nuclear medicine. 33(4)
Whole-body dynamic imaging using positron emission tomography (PET) facilitates the quantification of tracer kinetics. It is potentially valuable for the differential diagnosis of tumors and for the evaluation of therapeutic efficacy. In whole-body d
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::61c059a0e967b426a7b0cd6f3aba8699
https://pubmed.ncbi.nlm.nih.gov/30707349
https://pubmed.ncbi.nlm.nih.gov/30707349
Autor:
Keishin Morita, Yuji Tsutsui, Kazuhiko Himuro, Akira Maebatake, Shingo Baba, Go Akamatsu, Masayuki Sasaki
Publikováno v:
Journal of nuclear medicine technology. 47(1)
We aimed to evaluate the influence of minimal misalignment of a hot spot on the repeatability of PET images using repositioning of point sources. Methods: Point sources with an inner diameter of 1 mm were made with 1 μL of 18F solution. Seven point
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::99cfe09dbdee1f8246715c95813b18c8
https://pubmed.ncbi.nlm.nih.gov/30413592
https://pubmed.ncbi.nlm.nih.gov/30413592
Autor:
Toshiki Takeshita, Ken Kihara, Akira Maebatake, Yuji Tsutsui, Takafumi Taniguchi, Kenta Miwa, Shohei Mikasa, Masayuki Sasaki, Go Akamatsu, Daisuke Kidera
Publikováno v:
Annals of Nuclear Medicine. 30:97-103
The aim of this study was to quantitatively evaluate the edge artifacts in PET images reconstructed using the point-spread function (PSF) algorithm at different sphere-to-background ratios of radioactivity (SBRs). We used a NEMA IEC body phantom cons
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8439891e6e22208a72f8b23fa1ff3ee3
https://doi.org/10.1007/s12149-015-1036-9
https://doi.org/10.1007/s12149-015-1036-9
Autor:
Hiroyuki Nishida, Akihito Ohnishi, Akira Maebatake, Go Akamatsu, Masayuki Sasaki, Michio Senda, Yasuhiko Ikari, Tomoyuki Nishio
Publikováno v:
Journal of Nuclear Medicine Technology. 43:222-226
Standardized uptake values (SUVs) have been widely used in the diagnosis of malignant tumors and in clinical trials of tumor therapies as semiquantitative metrics of tumor 18F-FDG uptake. However, SUVs for small lesions are liable to errors due to pa
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::27e0c213292f35664a422f48e66fb135
https://doi.org/10.2967/jnmt.115.161745
https://doi.org/10.2967/jnmt.115.161745
Autor:
Hiroyuki Nishida, Akira Fujino, Tomoyuki Nishio, Akira Maebatake, Akihito Ohnishi, Yasuhiko Ikari, Masayuki Sasaki, Michio Senda, Go Akamatsu
Publikováno v:
Japanese Journal of Radiological Technology. 71:735-745
Standardized uptake value (SUV) has been widely used as a semi-quantitative metric of uptake in FDGPET/ CT for diagnosis of malignant tumors and evaluation of tumor therapies. However, the SUV depends on various factors including PET/CT scanner speci
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ea7abd234a46421bdb981731cad64305
https://doi.org/10.6009/jjrt.2015_jsrt_71.9.735
https://doi.org/10.6009/jjrt.2015_jsrt_71.9.735
Autor:
Akira, Maebatake, Ayaka, Imamura, Yui, Kodera, Yasuo, Yamashita, Kazuhiko, Himuro, Shingo, Baba, Kenta, Miwa, Masayuki, Sasaki
Publikováno v:
Asia Oceania Journal of Nuclear Medicine and Biology
Objective(s): The aim of this study was to determine the optimal reconstruction parameters for iterative reconstruction in different devices and collimators for dopamine transporter (DaT) single-photon emission computed tomography (SPECT). The result
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::173b8156e3a5236a7bf6fd1a3fdb4176
https://pubmed.ncbi.nlm.nih.gov/27408895
https://pubmed.ncbi.nlm.nih.gov/27408895
Autor:
Akira Maebatake, Masayuki Sasaki, Kenta Miwa, Yuji Tsutsui, Shingo Baba, Go Akamatsu, Kazuhiko Himuro
Publikováno v:
Annals of nuclear medicine. 30(1)
The aim of this study was to investigate the relationship between the NEC and TOF-PET image quality. The National Electrical Manufactures Association and International Electrical Commission (NEMA IEC) body phantom with a 10-mm diameter sphere was fil
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::873ac9952a1dddadf9307bb4f5177273
https://pubmed.ncbi.nlm.nih.gov/26486151
https://pubmed.ncbi.nlm.nih.gov/26486151