S
Sadayuki Murayama
Researcher at University of the Ryukyus
Publications - 170
Citations - 3720
Sadayuki Murayama is an academic researcher from University of the Ryukyus. The author has contributed to research in topics: Cancer & Radiation therapy. The author has an hindex of 31, co-authored 165 publications receiving 3183 citations. Previous affiliations of Sadayuki Murayama include St. Marianna University School of Medicine.
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Journal ArticleDOI
CT-guided needle biopsy of lung lesions: a survey of severe complication based on 9783 biopsies in Japan.
Noriyuki Tomiyama,Yoshifumi Yasuhara,Yasuo Nakajima,Shuji Adachi,Yasuaki Arai,Masahiko Kusumoto,Kenji Eguchi,Keiko Kuriyama,Fumikazu Sakai,Masayuki Noguchi,Kiyoshi Murata,Sadayuki Murayama,Teruhito Mochizuki,Kiyoshi Mori,Kozo Yamada +14 more
TL;DR: This is the first national study documenting severe complications with respect to CT-guided needle biopsy in Japan, and it is believed this data will improve both clinicians as well as patients understanding of the risk versus benefit of CT- guided needle biopsies, resulting better decisions.
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Natural History of Pulmonary Subsolid Nodules: A Prospective Multicenter Study
Ryutaro Kakinuma,Masayuki Noguchi,Kazuto Ashizawa,Keiko Kuriyama,Akiko Miyagi Maeshima,Naoya Koizumi,Tetsuro Kondo,Haruhisa Matsuguma,Norihisa Nitta,Hironobu Ohmatsu,Jiro Okami,Hiroshi Suehisa,Taiki Yamaji,Ken Kodama,Kiyoshi Mori,Kouzo Yamada,Yoshihiro Matsuno,Sadayuki Murayama,Kiyoshi Murata +18 more
TL;DR: This study revealed the frequencies and periods of development from PGGNs and HGGNs into part‐solid nodules and Invasive adenocarcinomas were diagnosed only among the part‐ Solid nodules.
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Spontaneous pneumomediastinum and Macklin effect: Overview and appearance on computed tomography.
Sadayuki Murayama,Shinji Gibo +1 more
TL;DR: The aim of this review article is to describe the CT imaging spectrum of the Macklin effect in patients with SPM, focusing on the common appearance of the MacGregor effect, pneumorrhachis, and persistent SPM with pneumatocele.
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Long-term results of radiotherapy for intracranial germinoma: a multi-institutional retrospective review of 126 patients.
Kazuhiko Ogawa,Naoto Shikama,Takafumi Toita,Katsumasa Nakamura,Takashi Uno,Hiroshi Onishi,Jun Itami,Yasumasa Kakinohana,Takao Kinjo,Yoshihiko Yoshii,Hisao Ito,Sadayuki Murayama +11 more
TL;DR: RT was a curative treatment for intracranial germinoma, and elevated serum hCG levels did not affect the prognosis of patients treated by RT alone, and a total dose of 40-50 Gy to adequate treatment fields was effective in preventing intrac Cranial relapse.
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Clinical Significance of Human Kallikrein Gene 6 Messenger RNA Expression in Colorectal Cancer
Kazuhiko Ogawa,Tohru Utsunomiya,Koshi Mimori,Fumiaki Tanaka,Hiroshi Inoue,Hisashi Nagahara,Sadayuki Murayama,Masaki Mori +7 more
TL;DR: KLK6 mRNA expression was significantly higher in cancerous than in noncancerous colorectal tissues, and high expression of KLK6 RNA correlated with serosal invasion, liver metastasis, advanced Duke's stage, and a poor prognosis for patients with coloreCTal cancer.