Zobrazeno 1 - 10
of 130
pro vyhledávání: '"Osamu Abe"'
Autor:
Koichiro Yasaka, Naoki Yoshioka, Taku Tajima, Rintaro Miyo, Masaaki Akahane, Osamu Abe, Hiroyuki Akai, Hiroyuki Kabasawa, Kuni Ohtomo, Shigeru Kiryu, Haruto Sugawara
Publikováno v:
Japanese Journal of Radiology. 40:476-483
Purpose The purpose of this study was to evaluate whether deep learning reconstruction (DLR) improves the image quality of intracranial magnetic resonance angiography (MRA) at 1.5 T. Materials and methods In this retrospective study, MRA images of 40
Publikováno v:
Magnetic Resonance Imaging. 82:55-73
Test-retest reliability is essential for using resting-state functional magnetic resonance imaging (rs-fMRI) as a potential biomarker for Alzheimer's disease (AD), especially when monitoring longitudinal changes and treatment effects. In addition, te
Autor:
Mariko Kurokawa, Tomoya Tanishima, Moto Nakaya, Yoshiaki Ota, Wataru Gonoi, Shohei Inui, Akifumi Hagiwara, Osamu Abe, Ryo Kurokawa, Nana Fujita, Yudai Nakai, Shiori Amemiya, Akira Baba
Publikováno v:
Abdominal Radiology. 46:3066-3074
To evaluate the relationship between abnormal findings on abdomino-pelvic CT and adverse events in oncologic patients treated with lenvatinib, and their relationship with treatment planning. This single institutional retrospective study included 58 p
Publikováno v:
Journal of Magnetic Resonance Imaging. 54:609-616
Background Longitudinal magnetic resonance imaging (MRI) studies have become increasingly important to assess the changes in brain morphology during normal aging and neurodegenerative disorders. However, the reliability of longitudinal morphometric c
Autor:
Ryo, Kurokawa, Shimpei, Kato, Hiroaki, Koyama, Masanori, Ishida, Mariko, Kurokawa, Ryohei, Kuroda, Tetsuo, Ushiku, Haruki, Kume, Osamu, Abe
Publikováno v:
European Journal of Radiology. 157:110595
Osteolytic or mixed bone metastases (BMs) are considered rare in prostate cancer (PCa). However, we hypothesized that they are not uncommon in high-risk PCa. This study aimed to compare the clinical and CT imaging characteristics of PCa by focusing o
Differentiation of high-grade and low-grade intra-axial brain tumors by time-dependent diffusion MRI
Autor:
Akihiko Wada, Saori Koshino, Tomoko Maekawa, Akifumi Hagiwara, Kouhei Kamiya, Toshiaki Akashi, Christina Andica, Thorsten Feiweier, Shigeki Aoki, Osamu Abe, Koji Kamagata, Katsutoshi Murata, Masaaki Hori, Shohei Fujita
Publikováno v:
Magnetic Resonance Imaging. 72:34-41
Introduction Oscillating gradient spin-echo (OGSE) sequences enable acquisitions with shorter diffusion times. There is growing interest in the effect of diffusion time on apparent diffusion coefficient (ADC) values in patients with cancer. However,
Autor:
Matteo Cencini, Akifumi Hagiwara, Shohei Fujita, Shigeki Aoki, Koji Kamagata, Naoyuki Takei, Guido Buonincontri, Issei Fukunaga, Masaaki Hori, Rolf F. Schulte, Wataru Uchida, Osamu Abe
Publikováno v:
Human Brain Mapping
Three‐dimensional (3D) Magnetic resonance fingerprinting (MRF) permits whole‐brain volumetric quantification of T1 and T2 relaxation values, potentially replacing conventional T1‐weighted structural imaging for common brain imaging analysis. Th
Publikováno v:
Radiation oncology (London, England). 17(1)
Background Prostate cancer is the second most common malignancy worldwide, and the majority of patients are diagnosed with localized disease. We examined patients’ quality of life after stereotactic body radiation therapy (SBRT) for prostate cancer
Autor:
Subaru, Sawayanagi, Hideomi, Yamashita, Mami, Ogita, Ryosuke, Takenaka, Yuki, Nozawa, Yuichi, Watanabe, Toshikazu, Imae, Osamu, Abe
Publikováno v:
Radiation Oncology. 17
Background The aim of this study was to clarify the association between intrafractional prostate shift and hydrogel spacer. Methods Thirty-eight patients who received definitive volumetric modulated arc therapy (VMAT)-stereotactic body radiation ther
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