Výsledky vyhledávání - "Tomoyasu Yashiro"

Design of a compensating bolus by use of exhalation CT data for covering residual motion in respiratory-gated charged-particle lung therapy: four-dimensional carbon beam dose calculation

Autor: Tomoyasu Yashiro, Shinichiro Mori, Masayuki Baba, Masahiro Endo, Hiroshi Asakura, Susumu Kandatsu, Motoki Kumagai, Shuhei Komatsu

Publikováno v: Scopus-Elsevier

We developed an algorithm which we used to design a compensating bolus by using respiratory-gated CT data for respiratory-gated carbon beam lung therapy and evaluated it by calculating dose distributions as a function of time. Four-dimensional CT (4D

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::aa065e2e56eb6bdb70cc12c0b65f22a7
https://doi.org/10.1007/s12194-007-0012-z

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Carbon Ion Radiotherapy for Stage I Non-small Cell Lung Cancer Using a Regimen of Four Fractions during 1 Week

Autor: Masayuki Baba, Tomoyasu Yashiro, Toshio Sugane, Takehiko Fujisawa, Hidefumi Ezawa, Hirohiko Tsujii, Masashi Koto, Kennji Kagei, Toshiyuki Sugawara, Kennoshuke Kadono, Naoki Hirasawa, Naoyoshi Yamamoto, Tadaaki Miyamoto, Kyosan Yoshikawa, Mio Nakajima, Susumu Kandatsu, Jun Etsu Mizoe

Publikováno v: Journal of Thoracic Oncology. 2(10):916-926

Background A phase I/II study was first conducted for the treatment of stage I non-small cell lung cancer (NSCLC) from 1994 to 1999 to determine the optimal dose. On the basis on the results, a phase II study using a regimen of four fractions during

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::579bedbde23b9b31b41057d24bb6ac6b

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Inhibition of potential lethal damage repair and related gene expression after carbon-ion beam irradiation to human lung cancer grown in nude mice

Autor: Kumiko Koyama-Saegusa, Takehiko Fujisawa, Tomoyasu Yashiro, Takashi Imai, Tadaaki Miyamoto

Publikováno v: Journal of Radiation Research. 48(5):377-383

Using cultured and nude mouse tumor cells (IA) derived from a human lung cancer, we previously demonstrated their radiosensitivity by focusing attention on the dynamics of tumor clonogens and the early and rapid survival recovery (potential lethal da

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2b42a870257ac5fdf9520d822eeebe0f
https://repo.qst.go.jp/records/45445

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Four-Dimensional Measurement of Lung Tumor Displacement Using 256-Multi-Slice CT-Scanner

Autor: Susumu Kandatsu, Masahiro Endo, Masayuki Baba, Shinichiro Mori, Tomoyasu Yashiro, Shuhei Komatsu

Publikováno v: Lung Cancer. 56(1):59-67

The concept of internal target volume is of marked importance for radiotherapy to lung tumors as respiration-induced motion is important. Individualized assessment of motion is required as tumour site may not predict the extent or pattern of tumour m

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0484629267e6105f539bd6ca1fc3a1c0
https://repo.qst.go.jp/records/44809

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Curative treatment of Stage I non–small-cell lung cancer with carbon ion beams using a hypofractionated regimen

Autor: Masayuki Baba, Masashi Koto, Jun Etsu Mizoe, Tadaaki Miyamoto, Naoyoshi Yamamoto, Takehiko Fujisawa, Susumu Kandatsu, Kennoshuke Kadono, Hirohiko Tsujii, Tomoyasu Yashiro, Kyosan Yoshikawa, Toshiyuki Sugawara, Hidefumi Ezawa

Publikováno v: International Journal of Radiation Oncology*Biology*Physics. 67:750-758

Purpose: A phase I/II study on carbon ion radiotherapy for Stage I non–small-cell lung cancer (NSCLC) was first conducted between 1994 and 1999 and determined the optimal dose. Second, a Phase II study using the optimal dose was performed. The purp

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e1ad46e8f219ddc5b21ee311faa95b10
https://doi.org/10.1016/j.ijrobp.2006.10.006

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Respiratory Correlated Segment Reconstruction Algorithm Towards Four-dimensional Radiation Therapy Using Carbon Ion Beams

Autor: Shinichiro Mori, Masahiro Endo, Shuhei Komatsu, Kazutoshi Kohno, Hiroshi Asakura, Tomoyasu Yashiro, Masayuki Baba, Ryosuke Kohno, Susumu Kandatsu

Publikováno v: Radiotherapy and Oncology. 80(3):341-348

Purpose To enhance the precision of treatment planning for tumors which move under respiration, we developed a respiratory-correlated segment reconstruction method (RS) based on the Feldkamp–Davis–Kress algorithm (FDK) which provides high tempora

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5e43cd7666c7355b205c9a8e7f34e165
https://repo.qst.go.jp/records/44785

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A combination-weighted Feldkamp-based reconstruction algorithm for cone-beam CT

Autor: Shinichiro Mori, Shuhei Komatsu, Susumu Kandatsu, Masayuki Baba, Masahiro Endo, Tomoyasu Yashiro

Publikováno v: Physics in Medicine and Biology. 51(16):3953-3965

The combination-weighted Feldkamp algorithm (CW-FDK) was developed and tested in a phantom in order to reduce cone-beam artefacts and enhance cranio-caudal reconstruction coverage in an attempt to improve image quality when utilizing cone-beam comput

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b5db473fcc52aa5d2fd31dae74d1c38a
https://repo.qst.go.jp/records/44788

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Huge Localized Fibrous Tumor of the Pleura Resembling a Mediastinal Tumor: Report of a Case

Autor: Toshihiko Iizasa, Osamu Matsuzaki, Takehiko Fujisawa, Mitsutoshi Shiba, Tomoyasu Yashiro, Kouichiro Sato, Mizuto Otsuji

Publikováno v: Surgery Today. 34:58-61

A 67-year-old man was admitted to our hospital because of an abnormal chest echoic lesion detected incidentally by echocardiography. A chest roentgenogram showed the presence of a giant mass, and computed tomography of the chest confirmed the presenc

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8d7baaeb4949965afd6e226338676475
https://doi.org/10.1007/s00595-003-2648-6

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Volumetric cine imaging for four-dimensional radiation therapy planning using the second model of the 256-detector row CT-scanner: Initial experience in lung cancer

Autor: Masayuki Baba, Tomoyasu Yashiro, Masahiro Endo, Shinichiro Mori, Shuhei Komatsu, Susumu Kandatsu

Publikováno v: European Journal of Radiology Extra. 57:71-73

This is an initial demonstration of volumetric cine imaging under free breathing in lung cancer patients using the second model of the 256-detector row CT (256MDCT). Scan range is 128 mm in the cranio-caudal direction with a 0.5 mm slice thickness an

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::62b960e731d49920f0f668d1ca81826f
https://doi.org/10.1016/j.ejrex.2005.12.006

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Successful surgical treatment for life threatening metastatic thoracic and cervical pheochromocytoma

Autor: Kenzo Hiroshima, Kazuhiro Yasufuku, Takehiko Fujisawa, Tomoyasu Yashiro

Publikováno v: Interactive CardioVascular and Thoracic Surgery.

A 53 year-old woman had been followed up since 1996 after receiving bilateral adrenalectomy for the treatment of bilateral adrenal pheochromocytoma in von Hippel-Lindau (VHL) disease. In March 2003, she suffered from cough, dizziness and faint, and w

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1a21643600e41d203b872378fdc98198
https://doi.org/10.1510/icvts.2004.096784

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