发明名称 |
Moving table MRI with subsampling in parallel |
摘要 |
A novel magnetic resonance imaging method is described, for forming an image of an object from a plurality of signals sampled in a restricted homogeneity region of a main magnet field of a magnetic resonance imaging apparatus. A patient disposed on a table is moved continuously through the bore of the main magnet and spins in a predetermined area of the patient are excited by an excitation pulse from a transmitter antenna, such that an image is formed over a region exceeding largely the restricted region. Data is undersampled in the restricted region by means off at least one receiver antenna in a plurality of receive situations being defined as a block of measurements contiguous in time having preserved magnetisation and presaturation conditions within the excited area of the patient. Fold-over artefacts due to said undersampling are unfolded by means of the known sensitivity pattern of the receiver antenna and/or the properties of selected factors determining said receive situations.
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申请公布号 |
US7417429(B2) |
申请公布日期 |
2008.08.26 |
申请号 |
US20040547196 |
申请日期 |
2004.02.18 |
申请人 |
KONINKLIJKE PHILIPS ELECTRONICS N.V. |
发明人 |
FUDERER MIHA;HARVEY PAUL ROYSTON;VAN DEN BRINK JOHAN SAMUEL |
分类号 |
G01V3/00;G01R33/561;G01R33/563 |
主分类号 |
G01V3/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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