发明名称 |
MAGNETIC RESONANCE IMAGING APPARATUS AND RINGING REDUCING METHOD |
摘要 |
PROBLEM TO BE SOLVED: To reduce ringing while restraining increase in blur caused in an image. SOLUTION: A filtering part 22a conducts filtering for k-space data collected utilizing a nuclear magnetic resonance phenomenon using a low pass filter for canceling high-frequency component. A contrast converting part 22c conducts contrast conversion for restraining a signal value of a high signal component for an image reconfigured from data subjected to filtering by the filtering part 22a. A restoring part 22d generates an image where high-frequency component canceled by the filtering part 22a is restored from the image subjected to contrast conversion by the contrast converting part 22c using a high pass filter having frequency characteristics equivalent to the substantially inverses of the low pass filter used by the filtering part 22a. COPYRIGHT: (C)2010,JPO&INPIT |
申请公布号 |
JP2010082372(A) |
申请公布日期 |
2010.04.15 |
申请号 |
JP20080257621 |
申请日期 |
2008.10.02 |
申请人 |
TOSHIBA CORP;TOSHIBA MEDICAL SYSTEMS CORP;TOSHIBA MEDICAL SYSTEM CO LTD |
发明人 |
MACHIDA YOSHIO;KUSAHARA HIROSHI |
分类号 |
A61B5/055;G01R33/32;G01R33/54 |
主分类号 |
A61B5/055 |
代理机构 |
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代理人 |
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地址 |
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