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    Article

    Wide slab is useful for routine quality control of MRI slice thickness

    Although slice thickness accuracy is important for the performance of magnetic resonance imaging systems, long scan times are required to perform reliable measurements. Inclined slabs and wedges are convention...

    Yoshiyuki Ishimori, Masahiko Monma, Hiraku Kawamura in Radiological Physics and Technology (2018)

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    Fat-subtracted three-dimensional time-of-flight MR angiography of the neck by use of fat-only images with the two-point Dixon technique

    For improvement of three-dimensional time-of-flight magnetic resonance angiography (3D-TOF-MRA) image quality in the neck, fat-subtracted MRA by use of the two-point Dixon technique was compared with conventio...

    Yasuhiro Fujiwara, Yoshiyuki Ishimori in Radiological Physics and Technology (2015)

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    Feasibility of MR perfusion-weighted imaging by use of a time-spatial labeling inversion pulse

    Perfusion-weighted imaging (PWI) by use of arterial spin labeling (ASL) has been introduced to the clinical setting. However, it is not widely available because it requires specialized pulse sequences. Imaging...

    Yoshiyuki Ishimori, Hiraku Kawamura, Masahiko Monma in Radiological Physics and Technology (2013)

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    MR perfusion imaging by alternate slab width inversion recovery arterial spin labeling (AIRASL): a technique with higher signal-to-noise ratio at 3.0 T

    To propose a new arterial spin labeling (ASL) perfusion-imaging method (alternate slab width inversion recovery ASL: AIRASL) that takes advantage of the qualities of 3.0 T.

    Yasuhiro Fujiwara, Hirohiko Kimura in Magnetic Resonance Materials in Physics, B… (2012)

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    Time spatial labeling inversion pulse cerebral MR angiography without subtraction by use of dual inversion recovery background suppression

    Time-spatial labeling inversion pulse (time-SLIP), which is a technique of nonenhanced magnetic resonance angiography (MRA) based on arterial spin labeling (ASL), is used in various situations. Although subtra...

    Yoshiyuki Ishimori, Masahiko Monma, Hiraku Kawamura in Radiological Physics and Technology (2011)

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    Article

    Fat quantification by use of phase change in dual-echo magnetic resonance imaging

    The demand for measurement of visceral fat in medical checkups is increasing because of attention to central obesity. Computed tomography is widely used for this purpose, but carries risks associated with radi...

    Yoshiyuki Ishimori, Masahiko Monma, Hitoshi Sakurai in Radiological Physics and Technology (2008)