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of 20
pro vyhledávání: '"Hisamoto Moriguchi"'
Autor:
Martin Blaimer, Jeffrey L. Duerk, Peter M. Jakob, Nicole Seiberlich, Felix A. Breuer, Hisamoto Moriguchi, Mark A. Griswold
Publikováno v:
Magnetic Resonance in Medicine. 60:474-478
Conventional Cartesian parallel MRI methods are limited to the sensitivity variations provided by the underlying receiver coil array in the dimension in which the data reduction is carried out, namely, the phase-encoding directions. However, in this
Publikováno v:
Magnetic Resonance in Medicine. 52:1342-1350
The Spiral two-point Dixon (Spiral 2PD) technique has recently been proposed as a method for unambiguous water–fat decomposition in spiral imaging. It also corrects for off-resonance blurring artifacts using only two data sets. In the Spiral 2PD te
Publikováno v:
Magnetic Resonance in Medicine. 50:915-924
Spiral imaging has recently gained acceptance in MR applications requiring rapid data acquisition. One of the main disadvantages of spiral imaging, however, is blurring artifacts that result from off-resonance effects. Spatial-spectral (SPSP) pulses
Publikováno v:
Magnetic Resonance in Medicine. 44:766-781
Various kinds of nonrectilinear Cartesian k-space trajectories have been studied, such as spiral, circular, and rosette trajectories. Although the nonrectilinear Cartesian sampling techniques generally have the advantage of fast data acquisition, the
Autor:
Shigeharu Takagi, Noriharu Yanagimachi, Hisamoto Moriguchi, Tomohiko Horie, Shunya Takizawa, Eiichiro Nagata
Publikováno v:
Internal Medicine. 48:2133-2135
We performed 3T magnetic resonance angiography (MRA) during a spontaneous migraine attack. The patient was a 42-year-old woman migraineur diagnosed by the IHS criteria. The change of the middle meningial artery (MMA) was measured on the axial brain i
Autor:
Yasuo Okuyama, Norihiko Akiba, Satoshi Ando, Tsuneo Takahashi, Hisamoto Moriguchi, Yuichi Watanabe, Kohki Yoshikawa, Morio Shimada, Kyoichi Ito
Publikováno v:
Okajimas folia anatomica Japonica. 89(3)
The human hyoid bone supports the base of the tongue and is involved in breathing, chewing, and swallowing as well as in the muscle movements associated with articulation. Accordingly it plays an important bone for a human to live. It is a very inter
Autor:
Peter M. Jakob, Nicole Seiberlich, Martin Blaimer, Hisamoto Moriguchi, Philipp Ehses, Felix A. Breuer, Mark A. Griswold
Publikováno v:
Magnetic Resonance in Medicine
As expected from the generalized sampling theorem of Papoulis, the use of a bunched sampling acquisition scheme in conjunction with a conjugate gradient (CG) reconstruction algorithm can decrease scan time by reducing the number of phase-encoding lin
Re-evaluation of body weight as an indicator for contrast material dosage for indirect CT venography
Autor:
Midori, Saito, Jun, Koizumi, Tamaki, Ichikawa, Hisamoto, Moriguchi, Shu, Ikeda, Eiko, Yamashita, Yutaka, Imai
Publikováno v:
The Tokai journal of experimental and clinical medicine. 34(1)
We evaluated body weight as an accurate indicator for determining contrast load using nonionic monomeric contrast material in indirect CT venography.One hundred and thirty-two patients (mean age 51 years) underwent indirect CT venography to exclude t
Autor:
Hisamoto Moriguchi, Jeffrey L. Duerk
Publikováno v:
Magnetic resonance in medicine. 55(3)
A new fast data acquisition method, "Bunched Phase Encoding" (BPE), is presented. In conventional rectilinear data acquisition, only a readout gradient (and no phase encoding gradient) is applied when k-space data are acquired. Reduction of the numbe
Publikováno v:
Proceedings of the 25th Annual International Conference of the IEEE Engineering in Medicine and Biology Society (IEEE Cat. No.03CH37439).
Spiral sampling of k-space is a popular magnetic resonance imaging (MRI) technique. A variety of choices are available for optimizing the spiral trajectory and reconstruction methods. To evaluate the effects of noise on these choices, we used a Perce