Zobrazeno 1 - 10
of 419
pro vyhledávání: '"Keiichi Nakagawa"'
Autor:
Keiichi Nakagawa, Mami Ogita, Masanari Minamitani, Hideomi Yamashita, Tomoya Mukai, Atsuto Katano
Publikováno v:
Asian Pacific Journal of Cancer Prevention. 22:2889-2896
Objective: The radiotherapy utilization rate in Japan is lower than that in other developed countries. This study identified factors associated with the low rate, by conducting an online survey of Japanese cancer survivors. Methods: We reviewed the w
Autor:
Kae Okuma, Ryosuke Takenaka, Kanabu Nawa, Keiichi Nakagawa, Mayuka Kitaguchi, Hideomi Yamashita
Publikováno v:
Practical Radiation Oncology. 11:e308-e321
Purpose Total skin electron beam therapy (TSEBT) is useful for primary cutaneous lymphoma. However, helical skin radiation therapy (HSRT) using tomotherapy may avoid the complexity and uncertainty of TSEBT. Methods and Materials All patients with pri
Autor:
Keiichi Nakagawa, Ichiro Sakuma, Kenji Shimazoe, M. R. Liyanaarachchi, Etsuko Kobayashi, Hiroyuki Takahashi
Publikováno v:
International Journal of Computer Assisted Radiology and Surgery. 16:29-39
Conventional positron emission tomography can be used only preoperatively to identify lymph node metastases, and hence, these growths are difficult to locate intraoperatively. Previously, an intraoperative laparoscopic coincidence imaging system, wit
Autor:
Shigeharu Takenaka, Toshikazu Imae, Kanako Matsuda, Keiichi Nakagawa, Atsushi Aoki, Yuichi Watanabe, Katsutake Sasaki, Kanabu Nawa, Shigeki Saegusa, Osamu Abe
Publikováno v:
Journal of Applied Clinical Medical Physics
Using a plane‐parallel advanced Markus ionization chamber and a stack of water‐equivalent solid phantom blocks, percentage surface and build‐up doses of Elekta 6 MV flattening filter (FF) and flattening‐filter‐free (FFF) beams were measured
Autor:
Mami Ogita, Hideomi Yamashita, Kenji Tokumasu, Kenshiro Shiraishi, Jiro Kawamori, Naomi Nakajima, Katsuyuki Karasawa, Ta-Chen Chang, Keiichi Nakagawa
Publikováno v:
Breast, Vol 52, Iss, Pp 88-94 (2020)
The Breast : official journal of the European Society of Mastology
The Breast : official journal of the European Society of Mastology
Background Because primary squamous cell carcinoma (SCC) of the breast is a rare disease, the standard therapy has not been established. We examined the clinical outcomes of postoperative adjuvant radiotherapy for breast SCC. Material and methods We
Autor:
Keiichi Nakagawa, Shigeharu Takenaka, Osamu Abe, Wataru Takahashi, Kanabu Nawa, Hideomi Yamashita, Yuichi Watanabe, Akihiro Haga, Toshikazu Imae, Mami Ogita, Takashi Shiraki
Publikováno v:
Radiological Physics and Technology. 13:238-248
This study aimed to reconstruct the dose distribution of single fraction of stereotactic body radiotherapy for patients with prostate cancer using cone-beam computed tomography (CBCT) and a log file during volumetric-modulated arc therapy (VMAT) deli
Autonomous Surgical Robot With Camera-Based Markerless Navigation for Oral and Maxillofacial Surgery
Autor:
Ken Masamune, Kazuaki Hara, Hideyuki Suenaga, Ichiro Sakuma, Qingchuan Ma, Etsuko Kobayashi, Keiichi Nakagawa, Junchen Wang
Publikováno v:
IEEE/ASME Transactions on Mechatronics. 25:1084-1094
The results of oral and maxillofacial surgery (OMS) significantly depend on the individual capabilities of surgeons. In this article, an autonomous surgical robot is proposed to automatically perform surgery according to a preoperative plan with the
Autor:
Wataru Takahashi, Keiichi Nakagawa, Kanabu Nawa, Hideomi Yamashita, Tomoyuki Noyama, Osamu Abe, Yuki Nozawa
Publikováno v:
Journal of Cancer Therapy. 11:738-744
Background: Postoperative irradiation for brain tumor in pregnant women is a matter of concern. Aim: We aimed to assess the safety of radiotherapy for brain tumors in pregnancy. We here report a successful treatment for anaplastic astrocytoma during
Autor:
Kanako Matsuda, Toshikazu Imae, Sho Ozaki, Osamu Abe, Shizuo Kaji, Takahiro Nakamoto, Hideomi Yamashita, Atsushi Aoki, Keiichi Nakagawa, Shigeharu Takenaka, Satoshi Kida, Kanabu Nawa
Publikováno v:
Japanese Journal of Radiological Technology. 76:1173-1184
Purpose Volumetric modulated arc therapy (VMAT) can acquire projection images during rotational irradiation, and cone-beam computed tomography (CBCT) images during VMAT delivery can be reconstructed. The poor quality of CBCT images prevents accurate
Autor:
Keiichi Nakagawa, Osamu Abe, Hideomi Yamashita, Akihiro Haga, Kae Okuma, Toshikazu Imae, Wataru Takahashi, Kanabu Nawa, Mami Ogita
Publikováno v:
Clinical and Translational Radiation Oncology, Vol 20, Iss, Pp 9-12 (2020)
Clinical and Translational Radiation Oncology
Clinical and Translational Radiation Oncology
Highlights • An optimal and safe irradiation method for pregnant woman remains controversial. • Flattening-filter free VMAT could reduce the fetal exposure significantly. • As adjuvant CCRT, 66 Gy to the involved nodes was delivered over 33 fra