Zobrazeno 1 - 10
of 29
pro vyhledávání: '"Eiji, Kidoya"'
Autor:
Akinobu Kita, Hidehiko Okazawa, Katsuya Sugimoto, Nobuyuki Kosaka, Eiji Kidoya, Tetsuya Tsujikawa
Publikováno v:
Diagnostics, Vol 13, Iss 8, p 1371 (2023)
This study aimed to develop a new convolutional neural network (CNN) method for estimating the specific binding ratio (SBR) from only frontal projection images in single-photon emission-computed tomography using [123I]ioflupane. We created five datas
Externí odkaz:
https://doaj.org/article/571a837731944eb6acf3ae96d3adbf14
Autor:
Hirohiko Kimura, Nobuyuki Kosaka, Yuki Matta, Eiji Kidoya, Tsuyoshi Matsuda, Yasuhiro Fujiwara, Naoyuki Takei, Masayuki Kanamoto, Shota Ishida
Publikováno v:
Magnetic Resonance in Medicine. 87:1329-1345
Purpose To clarify the type of spin compartment in arterial spin labeling (ASL) that is eliminated by delays alternating with nutation for tailored excitation (DANTE) pulse using T2 -relaxometry, and to demonstrate the feasibility of arterial cerebra
Autor:
Akinobu Kita, Masahisa Onoguchi, Takayuki Shibutani, Hirohiko Kimura, Eiji Kidoya, Ryoto Kaido, Nobuyuki Kosaka, Katsuya Sugimoto, Hidehiko Okazawa
Publikováno v:
Annals of Nuclear Medicine. 35:1271-1278
In the [123I]FP-CIT single-photon emission computed tomography (SPECT) examination, the specific binding ratio (SBR), calculated from the ratio of the striatal specific to extra-striatal background non-specific binding in the brain, is now commonly u
Autor:
Shota, Ishida, Hirohiko, Kimura, Naoyuki, Takei, Yasuhiro, Fujiwara, Tsuyoshi, Matsuda, Masayuki, Kanamoto, Yuki, Matta, Nobuyuki, Kosaka, Eiji, Kidoya
Publikováno v:
Magnetic resonance in medicineREFERENCES. 87(3)
To clarify the type of spin compartment in arterial spin labeling (ASL) that is eliminated by delays alternating with nutation for tailored excitation (DANTE) pulse using TThe DANTE and TWhile TMicrovascular compartment signals were eliminated from t
Publikováno v:
Journal of Applied Clinical Medical Physics
Purpose Medical physicists use a suitable detector connected to an electrometer to measure radiotherapy beams. Each detector and electrometer has a lifetime (due to physical deterioration of detector components and electrical characteristic deteriora
Autor:
Masayuki Kanamoto, Hirohiko Kimura, Tsuyoshi Matsuda, Naoyuki Takei, Yasuhiro Fujiwara, Eiji Kidoya, Makoto Isozaki, Nobuyuki Kosaka, Shota Ishida
Publikováno v:
NMR in Biomedicine. 33
Arterial transit time (ATT) prolongation causes an error of cerebral blood flow (CBF) measurement during arterial spin labeling (ASL). To improve the accuracy of ATT and CBF in patients with prolonged ATT, we propose a robust ATT and CBF estimation m
Publikováno v:
Radiological Physics and Technology. 4:43-52
Our aim in this study was to determine an optimal delay time of hepatic arterial phase (HAP) imaging of hypervascular hepatocellular carcinomas (HCCs) in dynamic contrast-enhanced MDCT (DCE-CT) by use of the bolus-tracking method. The time-enhancemen
Publikováno v:
Japanese Journal of Radiological Technology. 63:621-627
This paper presents an introduction to the development of software that provides a physiologic model of contrast medium enhancement by incorporating available physiologic data and contrast medium pharmacokinetics to predict an organ-specific aortic t
Autor:
Akihiko Nishijima, Keizoh Yamamoto, Hiroyuki Komuro, Yoichi Tamagawa, Eiji Kidoya, Shigekazu Nakatsugawa, Teruo Matsushita, Yasushi Ishii
Publikováno v:
Thermal Medicine(Japanese Journal of Hyperthermic Oncology). 7:70-77
Publikováno v:
Computerized medical imaging and graphics : the official journal of the Computerized Medical Imaging Society. 33(1)
The present study was performed to find the required volume of physiological saline for flushing that will allow the most efficient use of contrast medium during the early phase of dynamic CT. We calculated contrast medium aortic arrival time (AT), t