Search Results - "Kitajima, Mika"

Deep Learning Based Noise Reduction for Brain MR Imaging: Tests on Phantoms and Healthy Volunteers by Kidoh, Masafumi, Shinoda, Kensuke, Kitajima, Mika, Isogawa, Kenzo, Nambu, Masahito, Uetani, Hiroyuki, Morita, Kosuke, Nakaura, Takeshi, Tateishi, Machiko, Yamashita, Yuichi, Yamashita, Yasuyuki

“…Purpose: To test whether our proposed denoising approach with deep learning-based reconstruction (dDLR) can effectively denoise brain MR images.Methods: In an…”
Get full text

Arterial Spin Labeling for Pediatric Central Nervous System Diseases: Techniques and Clinical Applications by Kitajima, Mika, Uetani, Hiroyuki

“…Dynamic susceptibility contrast (DSC) and arterial spin labeling (ASL) are techniques used to evaluate brain perfusion using MRI. DSC requires dynamic image…”
Get full text

A preliminary study of deep learning-based reconstruction specialized for denoising in high-frequency domain: usefulness in high-resolution three-dimensional magnetic resonance cisternography of the cerebellopontine angle by Uetani, Hiroyuki, Nakaura, Takeshi, Kitajima, Mika, Yamashita, Yuichi, Hamasaki, Tadashi, Tateishi, Machiko, Morita, Kosuke, Sasao, Akira, Oda, Seitaro, Ikeda, Osamu, Yamashita, Yasuyuki

“…Purpose Deep learning-based reconstruction (DLR) has been developed to reduce image noise and increase the signal-to-noise ratio (SNR). We aimed to evaluate…”
Get full text

Microsecretory adenocarcinoma of the hard palate: A case report of a recently described entity by Kawakami, Fumi, Nagao, Toshitaka, Honda, Yumi, Sakata, Junki, Yoshida, Ryoji, Nakayama, Hideki, Inoue, Seijiro, Kitajima, Mika, Ikeda, Osamu, Nakaguro, Masato, Mikami, Yoshiki

“…We report a case of microsecretory adenocarcinoma of the hard palate. The patient is a 37‐year‐old woman with a 15 mm submucosal tumor, which was incidentally…”
Get full text

An initial experience of machine learning based on multi-sequence texture parameters in magnetic resonance imaging to differentiate glioblastoma from brain metastases by Tateishi, Machiko, Nakaura, Takeshi, Kitajima, Mika, Uetani, Hiroyuki, Nakagawa, Masataka, Inoue, Taihei, Kuroda, Jun-ichiro, Mukasa, Akitake, Yamashita, Yasuyuki

“…To evaluate the performance of a machine learning method based on texture parameters in conventional magnetic resonance imaging (MRI) in differentiating…”
Get full text

Homozygous splicing mutation in NUP133 causes Galloway–Mowat syndrome by Fujita, Atsushi, Tsukaguchi, Hiroyasu, Koshimizu, Eriko, Nakazato, Hitoshi, Itoh, Kyoko, Kuraoka, Shohei, Komohara, Yoshihiro, Shiina, Masaaki, Nakamura, Shohei, Kitajima, Mika, Tsurusaki, Yoshinori, Miyatake, Satoko, Ogata, Kazuhiro, Iijima, Kazumoto, Matsumoto, Naomichi, Miyake, Noriko

“…Objective Galloway–Mowat syndrome (GAMOS) is a neural and renal disorder, characterized by microcephaly, brain anomalies, and early onset nephrotic syndrome…”
Get full text

Diagnostic accuracy of MRI parameters in pure akinesia with gait freezing by Nakahara, Keiichi, Nakane, Shunya, Kitajima, Mika, Masuda-Narita, Tomoko, Matsuo, Hidenori, Ando, Yukio

“…Objective To determine the usefulness of MRI measurements in patients with pure akinesia with gait freezing (PAGF), Richardson’s syndrome, and Parkinson’s…”
Get full text

Machine learning based on multi-parametric magnetic resonance imaging to differentiate glioblastoma multiforme from primary cerebral nervous system lymphoma by Nakagawa, Masataka, Nakaura, Takeshi, Namimoto, Tomohiro, Kitajima, Mika, Uetani, Hiroyuki, Tateishi, Machiko, Oda, Seitaro, Utsunomiya, Daisuke, Makino, Keishi, Nakamura, Hideo, Mukasa, Akitake, Hirai, Toshinori, Yamashita, Yasuyuki

“…To evaluate the performance of a machine learning method based on texture features in multi-parametric magnetic resonance imaging (MRI) to differentiate a…”
Get full text

Comparison of the image quality of turbo spin echo- and echo-planar diffusion-weighted images of the oral cavity by Hirata, Kenichiro, Nakaura, Takeshi, Okuaki, Tomoyuki, Kidoh, Masafumi, Oda, Seitaro, Utsunomiya, Daisuke, Namimoto, Tomohiro, Kitajima, Mika, Nakayama, Hideki, Yamashita, Yasuyuki

“…The purpose of this study was to compare the image quality of turbo spin echo (TSE) diffusion-weighted imaging (DWI) and echo-planar imaging (EPI) of the oral…”
Get full text

Hybrid of Compressed Sensing and Parallel Imaging Applied to Three-dimensional Isotropic T2-weighted Turbo Spin-echo MR Imaging of the Lumbar Spine by Morita, Kosuke, Nakaura, Takeshi, Maruyama, Natsuki, Iyama, Yuji, Oda, Seitaro, Utsunomiya, Daisuke, Namimoto, Tomohiro, Kitajima, Mika, Yoneyama, Masami, Yamashita, Yasuyuki

“…Purpose: The hybrid compressed sensing (hybrid-CS) technique can shorten the acquisition time compared with the sensitivity encoding (SENSE) technique in…”
Get full text

Teaching NeuroImages: Morphology of lumbosacral dorsal root ganglia and plexus in hereditary transthyretin amyloidosis by Masuda, Teruaki, Ueda, Mitsuharu, Kitajima, Mika, Morita, Kosuke, Misumi, Yohei, Yamashita, Taro, Obayashi, Konen, Yamashita, Yasuyuki, Ando, Yukio

Get full text

Grading astrocytic tumors by using apparent diffusion coefficient parameters: superiority of a one- versus two-parameter pilot method by Murakami, Ryuji, Hirai, Toshinori, Sugahara, Takeshi, Fukuoka, Hirofumi, Toya, Ryo, Nishimura, Shinichiro, Kitajima, Mika, Okuda, Tomoko, Nakamura, Hideo, Oya, Natsuo, Kuratsu, Jun-ichi, Yamashita, Yasuyuki

“…To assess the utility of both minimum apparent diffusion coefficients (ADCs) and ADC difference values for grading astrocytic tumors at magnetic resonance…”
Get full text

Differentiating Between Primary Central Nervous System Lymphomas and Glioblastomas: Combined Use of Perfusion-Weighted and Diffusion-Weighted Magnetic Resonance Imaging by Makino, Keishi, Hirai, Toshinori, Nakamura, Hideo, Kuroda, Jun-ichiro, Shinojima, Naoki, Uetani, Hiroyuki, Kitajima, Mika, Yano, Shigetoshi

“…The purpose of this study was to determine whether combined diffusion-weighted imaging and dynamic susceptibility contrast-enhanced perfusion-weighted imaging…”
Get full text

Does adding FDG-PET to MRI improve the differentiation between primary cerebral lymphoma and glioblastoma? Observer performance study by Makino, Keishi, Hirai, Toshinori, Nakamura, Hideo, Murakami, Ryuji, Kitajima, Mika, Shigematsu, Yoshinori, Nakashima, Rumi, Shiraishi, Shinya, Uetani, Hiroyuki, Iwashita, Koya, Akter, Masuma, Yamashita, Yasuyuki, Kuratsu, Jun-ichi

“…Objective It is sometimes difficult to distinguish between primary central nervous system lymphomas (PCNSL) and glioblastoma multiforme (GBM). The aim of this…”
Get full text

Laterality on FDG-PET/CT in clinically node-negative early-stage oral squamous cell carcinoma: a retrospective analysis of patients with late neck metastasis by Minamitake, Anri, Murakami, Ryuji, Shiraishi, Shinya, Yoshida, Ryoji, Sakata, Junki, Hirosue, Akiyuki, Kawahara, Kenta, Yamana, Keisuke, Nakayama, Hideki, Kitajima, Mika, Sakamoto, Fumi

“…This study aimed to assess the role of preoperative 18 F-fluorodeoxyglucose (FDG)-positron emission tomography (PET)/computed tomography (CT) for predicting…”
Get full text

Circumventricular organs of human brain visualized on post-contrast 3D fluid-attenuated inversion recovery imaging by Azuma, Minako, Hirai, Toshinori, Kadota, Yoshihito, Khant, Zaw Aung, Hattori, Yohei, Kitajima, Mika, Uetani, Hiroyuki, Yamashita, Yasuyuki

“…Purpose Although contrast-enhanced three-dimensional T2 fluid-attenuated inversion recovery (3D T2-FLAIR) images are useful for assessing various neuronal…”
Get full text

Neonatal methionine adenosyltransferase I/III deficiency with abnormal signal intensity in the central tegmental tract by Kido, Jun, Sawada, Takaaki, Momosaki, Ken, Suzuki, Yosuke, Uetani, Hiroyuki, Kitajima, Mika, Mitsubuchi, Hiroshi, Nakamura, Kimitoshi, Matsumoto, Shirou

“…Methionine adenosyltransferase I/III (MAT I/III) deficiency is characterized by persistent hypermethioninemia. The clinical manifestations in cases with MAT…”
Get full text

Usefulness of perfusion- and diffusion-weighted imaging to differentiate between pilocytic astrocytomas and high-grade gliomas: a multicenter study in Japan by Kikuchi, Kazufumi, Hiwatashi, Akio, Togao, Osamu, Yamashita, Koji, Kamei, Ryotaro, Kitajima, Mika, Kanoto, Masafumi, Takahashi, Hiroto, Uchiyama, Yusuke, Harada, Masafumi, Shinohara, Yuki, Yoshiura, Takashi, Wakata, Yuki, Honda, Hiroshi

“…Purpose Imaging findings of pilocytic astrocytoma (PA) vary widely, sometimes resembling those of high-grade glioma (HGG). This study aimed to identify the…”
Get full text

Usefulness of Oblique Coronal Computed Tomography and Magnetic Resonance Imaging in the Endoscopic Endonasal Approach to Treat Skull Base Lesions by Yano, Shigetoshi, Shinojima, Naoki, Kitajima, Mika, Uetani, Hiroyuki, Hide, Takuichiro, Mukasa, Akitake

“…This report examines the usefulness of the preoperative image to orient the surgeon in the sphenoid sinus during endoscopic endonasal transsphenoidal surgery…”
Get full text

Brain computed tomography using iterative reconstruction to diagnose acute middle cerebral artery stroke: usefulness in combination of narrow window setting and thin slice reconstruction by Inoue, Taihei, Nakaura, Takeshi, Yoshida, Morikatsu, Yokoyama, Koichi, Uetani, Hiroyuki, Oda, Seitaro, Utsunomiya, Daisuke, Kitajima, Mika, Harada, Kazunori, Yamashita, Yasuyuki

“…Purpose The purpose of this study is to determine whether iterative model reconstruction (IMR) optimized for brain CT could improve the detection of acute…”
Get full text