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34495 NMR imaging method
Magnetic
Resonance Imaging,
Pergamon
NEW
Vol. 13, No. 1, pp. III-XXXIV, 1995 Copyright 0 1994 Elsevier Science Ltd Printed in the USA. All rights reserved 0730-725x/95 $9.50 + .oa
PATENTS
This section contains abstracts and, where appropriate, illustrations of recently issued United States patents and published patent application filed from over 30 countries under the Patent Cooperation Treaty. This information was obtained from recent additions to the PATSEARCH@ online database in accordance with interest profiles developed by the Editors. Further information about online patent searching can be obtained from Research on Demand, Inc., 2421 Fourth Street, Ste. C., Berkeley, CA 94710, U.S.A. [Tel. 510-841 1145; Fax 510-841 63111.
34495 NMR IMAGING
347475 METHOD
MAGNETIC RESONANCE IMAGING COIL BRACKET
Koichi Sano, Tetsuo Yokoyama, Ryuzaburo Takeda, Yasuhiko Ozawa, Shinichi Sato, Hideaki Koizumi, Yokohama, Japan assigned to Hitachi Ltd
Kenneth Meacham The ornamental design for a magnetic resonance imaging coil bracket, as shown and described.
A slice selection gradient magnetic field used in a pulse sequence for generating a spin echo signal is applied in such a fashion that its polarity at the time of a 90 degrees pulse becomes opposite to the one at the time of 180 degrees pulse, in order to expand a dynamic range of blood flow speed measurement. When the blood flow speed contains a component in a slice vertical direction, the gradient magnetic field in the slice vertical direction is adjusted so that the phase changes of two sets of flow encoded pulses contained in the slice vertical direction are opposite to each other. The flow speed in the direction of the readout gradient magnetic field, which is a lateral direction of the slice plane, is purely measured by canceling influences of the flow in the slice vertical direction.
5275163 MAGNETIC RESONANCE IMAGING METHOD AND DEVICE FOR MONITORING MOTION OF A PART OF AN OBJECT Graem McKinnon, Stefan Fischer, Peter Boesiger, Zswitzerlana assigned to U S Philips Corporation A magnetic resonance imaging method and device include a processor and a demodulator including a signal sampling device which provide automatic quantitative motion evaluation of a part of an object. Pulse and gradient sequences (tsq) are applied in pairs with spatially differing tagging patterns, images corresponding to the pairs being subtracted so as to form a tagged image. The motion is monitored by scanning of the tagging pattern in the tagged image which permits improved motion evaluation.
347063 MAGNETIC IMAGING
RESONANCE SCANNER
5275164
Tsukas Ariyoshi, Shigeki Masatsugu, Tatsuo Murai, Hiroyuki Kuriyama, Atsuo Yoshida, Atsuhiko Urushihara, Tadashi Sube, Kazunori Yanagisawa, Atsushi Katayama, Shyoji Kondo, Yoshiki Igarashi, Kokubunji, Japan assigned to Hitachi Ltd
MULTI-DIMENSIONAL MAGNETIC RESONANCE IMAGING METHOD AND APPARATUS FOR SAME
The ornamental design for a magnetic resonance imaging scanner, as shown.
Akira Maeda, Koichi Sano, Tetsu Yokoyama, Hideak Koizumi assigned to Hitachi Ltd III
Resonance Imaging,
Pergamon
NEW
Vol. 13, No. 1, pp. III-XXXIV, 1995 Copyright 0 1994 Elsevier Science Ltd Printed in the USA. All rights reserved 0730-725x/95 $9.50 + .oa
PATENTS
This section contains abstracts and, where appropriate, illustrations of recently issued United States patents and published patent application filed from over 30 countries under the Patent Cooperation Treaty. This information was obtained from recent additions to the PATSEARCH@ online database in accordance with interest profiles developed by the Editors. Further information about online patent searching can be obtained from Research on Demand, Inc., 2421 Fourth Street, Ste. C., Berkeley, CA 94710, U.S.A. [Tel. 510-841 1145; Fax 510-841 63111.
34495 NMR IMAGING
347475 METHOD
MAGNETIC RESONANCE IMAGING COIL BRACKET
Koichi Sano, Tetsuo Yokoyama, Ryuzaburo Takeda, Yasuhiko Ozawa, Shinichi Sato, Hideaki Koizumi, Yokohama, Japan assigned to Hitachi Ltd
Kenneth Meacham The ornamental design for a magnetic resonance imaging coil bracket, as shown and described.
A slice selection gradient magnetic field used in a pulse sequence for generating a spin echo signal is applied in such a fashion that its polarity at the time of a 90 degrees pulse becomes opposite to the one at the time of 180 degrees pulse, in order to expand a dynamic range of blood flow speed measurement. When the blood flow speed contains a component in a slice vertical direction, the gradient magnetic field in the slice vertical direction is adjusted so that the phase changes of two sets of flow encoded pulses contained in the slice vertical direction are opposite to each other. The flow speed in the direction of the readout gradient magnetic field, which is a lateral direction of the slice plane, is purely measured by canceling influences of the flow in the slice vertical direction.
5275163 MAGNETIC RESONANCE IMAGING METHOD AND DEVICE FOR MONITORING MOTION OF A PART OF AN OBJECT Graem McKinnon, Stefan Fischer, Peter Boesiger, Zswitzerlana assigned to U S Philips Corporation A magnetic resonance imaging method and device include a processor and a demodulator including a signal sampling device which provide automatic quantitative motion evaluation of a part of an object. Pulse and gradient sequences (tsq) are applied in pairs with spatially differing tagging patterns, images corresponding to the pairs being subtracted so as to form a tagged image. The motion is monitored by scanning of the tagging pattern in the tagged image which permits improved motion evaluation.
347063 MAGNETIC IMAGING
RESONANCE SCANNER
5275164
Tsukas Ariyoshi, Shigeki Masatsugu, Tatsuo Murai, Hiroyuki Kuriyama, Atsuo Yoshida, Atsuhiko Urushihara, Tadashi Sube, Kazunori Yanagisawa, Atsushi Katayama, Shyoji Kondo, Yoshiki Igarashi, Kokubunji, Japan assigned to Hitachi Ltd
MULTI-DIMENSIONAL MAGNETIC RESONANCE IMAGING METHOD AND APPARATUS FOR SAME
The ornamental design for a magnetic resonance imaging scanner, as shown.
Akira Maeda, Koichi Sano, Tetsu Yokoyama, Hideak Koizumi assigned to Hitachi Ltd III