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Article type: Cover
2004 Volume 74 Issue 1 Pages
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Article type: Reports from the Society
2004 Volume 74 Issue 1 Pages
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Article type: Reports from the Society
2004 Volume 74 Issue 1 Pages
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Article type: Reports from the Society
2004 Volume 74 Issue 1 Pages
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Article type: Index
2004 Volume 74 Issue 1 Pages
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Article type: Index
2004 Volume 74 Issue 1 Pages
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K. Matsubara
Article type: Article
2004 Volume 74 Issue 1 Pages
1-2
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Y. Fukui, [in Japanese], [in Japanese], [in Japanese], [in Japanese], ...
Article type: Discussion Meeting
2004 Volume 74 Issue 1 Pages
3-23
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Tomonori Isobe, Izumi Anno, Akira Matsumura
Article type: Original Contribution
2004 Volume 74 Issue 1 Pages
24-29
Published: January 01, 2004
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Sensitivity encoding (SENSE) is a technique that the uses multiple receiver coils to reduce scan time. In the present study, we investigated the advantages and disadvantages of the SENSE sequence for the brain examination. We also tried to fine the problems of SENSE imaging and the methods for avoiding it. Experiments were performed on a 1.5 T MR machine (Philips). A synergy coil of 2 ele- ments was used for the examination. In SENSE sequence, phase encoding step was reduced to 50% (reduction factor of 2). In comparison with the image using standard birdcage head coil (non-SENSE), SENSE image revealed the remarkable lowering of the visual signal to noise ratio in Tl weighed image, but not in T2 weighed image. In MR angiography (MRA), there was no difference in blood vessel delineation ability by comparing the SENSE image with the non-SENSE image, but the acquisition time was reduced in SENSE technique. The back folding artifact of the high signal appeared in the SENSE image, when the overlap over the number of the coil was made by the error of setting of the imaging range. This artifact can be avoided by enlarging the field of view. In the sequence in which the subcutaneous fat became a high signal, the cut-line artifact of arc and low signal appeared in SENSE image. In the brain examination, the SENSE technique is indicated especially in MRA, functional MRI and perfusion MRI due to its improvement in time resolution and high spatial resolution
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Hiromichi Maki, Yoshiharu Yonezawa, Shingo Matsuoka, Hidekuni Ogawa, T ...
Article type: Original Contribution
2004 Volume 74 Issue 1 Pages
30-38
Published: January 01, 2004
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A new care support system has been developed to monitor respiration, posture, behavior and general activity of welfare facility residents who need constant care. The system consists of wireless sensors, wireless repeaters and a host computer. The wireless repeaters and host computer communicate via a local area network. The wireless sensor, which is attached to the abdomen of each resident, records respiration, posture, behavior and activity, and these data are transmitted to the wireless repeater by a low power 303 MHz transceiver. The wireless repeater sends the data with the repeater ID to the host computer. The ID is used to detect the resident's location in the welfare facility. The host computer stores the data, which can be used to analyze for resident overall health condition. When the resident is in an emergency situation, such as falling or in an inactive state for a long time, then the host computer automatically alarms the situation to the care staff by the sound and PHS (personal handy phone).
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Seisuke Takashima, Shuhei Nakaji, Masato Kamitani, Hiroshi Isozaki
Article type: Original Contribution
2004 Volume 74 Issue 1 Pages
39-45
Published: January 01, 2004
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Some attempts to elucidate the characteristic changes of protein by the wet thermal treatment at the appointed temperatures (105, 131, 135°C) for 16 minutes have been carried out, respectively. That is. ; it is the very interested and the very important matter that any amino acid site composed with protein is the most sensitive against the external thermal treatment. In this study, the characteristic changes of the specific amino acid site composed with protein have been identified by amino acid analysis based on the high performance liquid chromatographic techniques. And then, it is surprised that the tyrosine site is the most sensitive only at 135°C. It is supposed that the phenolic OH of the tyrosine site may be more damaged by the thermal treatment from those of IR spectra.
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Article type: Technical Notes
2004 Volume 74 Issue 1 Pages
46-47
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Article type: Reports from the Society
2004 Volume 74 Issue 1 Pages
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Article type: Appendix
2004 Volume 74 Issue 1 Pages
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Article type: Appendix
2004 Volume 74 Issue 1 Pages
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Article type: Appendix
2004 Volume 74 Issue 1 Pages
9-10
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Article type: Appendix
2004 Volume 74 Issue 1 Pages
11-12
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Article type: Appendix
2004 Volume 74 Issue 1 Pages
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Article type: Cover
2004 Volume 74 Issue 1 Pages
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Published: January 01, 2004
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