公开(公告)号：EP1307757A1

公开(公告)日：2003-05-07

申请号：EP01960497.4

申请日：2001-07-13

申请人： Koninklijke Philips Electronics N.V. ,  Philips Corporate Intellectual Property GmbH

发明人： FUDERER, Miha ,  VAN DEN BRINK, Johan, S. ,  JURRISSEN, Michel, P., J. ,  VAN MUISWINKEL, Arianne, M., C. ,  KATSCHER, Ulrich

IPC分类号： G01R33/561 ,  G01R33/3415

CPC分类号： G01R33/5611 ,  G01R33/4835

摘要： A magnetic resonance imaging method employs sub-sampled signal acquisition from a number of receiver coils such as surface coils. A full field-of-view magnetic resonance image is reconstructed on the basis of the sensitivity profiles of the receiver coils, for example on the basis of the SENSE technique. The reconstruction is carried out mathematically as an optimization, for example, requiring a minimum noise level in the magnetic resonance image. According to the invention, a priori information is also involved in the reconstruction and the a priori information is taken into account especially as a constraint in said optimization.

公开(公告)号：EP1307757B1

公开(公告)日：2012-09-12

申请号：EP01960497.4

申请日：2001-07-13

申请人： Koninklijke Philips Electronics N.V. ,  Philips Intellectual Property & Standards GmbH

发明人： FUDERER, Miha ,  VAN DEN BRINK, Johan, S. ,  JURRISSEN, Michel, P., J. ,  VAN MUISWINKEL, Arianne, M., C. ,  KATSCHER, Ulrich

IPC分类号： G01R33/561 ,  G01R33/3415

CPC分类号： G01R33/5611 ,  G01R33/4835

公开(公告)号：EP2411829A1

公开(公告)日：2012-02-01

申请号：EP10712563.5

申请日：2010-03-22

申请人： Koninklijke Philips Electronics N.V.

发明人： FUDERER, Miha ,  PEETERS, Johannes, M. ,  ROZIJN, Thomas, H. ,  DUIJNDAM, Adrianus, J., W. ,  JURRISSEN, Michel, P., J. ,  BENSCHOP, Franciscus, J., M.

IPC分类号： G01R33/561

CPC分类号： G01R33/5611 ,  G01R33/543

摘要： The invention relates to a method of MR imaging of at least a portion of a body (10) of a patient placed in an examination volume of an MR device (1). The object of the invention is to provide an improved, i.e. faster, parallel imaging technique. The invention proposes to acquire a survey signal data set (21, 22) at a low image resolution, which survey signal data set (21, 22) includes MR signals received in parallel or successively via a volume RF coil (9) and via a set of array RF coils (11, 12, 13). Spatial sensitivity profiles (23) of the array RF coils (11, 12, 13) are determined from the low resolution data. As a next step, a reference scan is performed in which a reference signal data set (25) is acquired at intermediate resolution solely via the array RF coils (11, 12, 13). The spatial sensitivity profiles (27) of the array RF coils (11, 12, 13) are determined from the data acquired at intermediate resolution and from the spatial sensitivity profiles (23) determined before at low resolution. Finally, a diagnostic scan is performed, in which a diagnostic signal data set (29) is acquired in parallel via the array RF coils (11, 12, 13) at high resolution. The diagnostic signal data set (29) may be acquired in a sub-sampled fashion. A diagnostic MR image (30) is then reconstructed from the diagnostic signal data set (29) and from the spatial sensitivity profiles (27) determined at the intermediate resolution, for example by using the SENSE or SMASH algorithm.

公开(公告)号：EP1763681A1

公开(公告)日：2007-03-21

申请号：EP05751652.8

申请日：2005-06-22

申请人： Koninklijke Philips Electronics N.V.

发明人： JURRISSEN, Michel, P., J. ,  FUDERER, Miha

IPC分类号： G01R33/561

CPC分类号： G01R33/5611

摘要： The invention relates to a device (1) for magnetic resonance imaging of a body (7) placed in a stationary and substantially homogeneous main magnetic field. In order to provide an MR device (1) which is arranged to automatically select an optimum subsampling scheme for three-dimensional SENSE, the invention proposes to select the subsampling scheme such that the maximum number of folded-over image values is minimized and simultaneously distances between the positions of the folded-over image values within the predetermined field of view are maximized.