JP2003325473A5 - - Google Patents

Claims (9)

A plurality of RF receiving coils for receiving magnetic resonance signals generated from the subject;
and had thinning phase encoding steps of k-space, the measurement control means for acquiring k-space data thinned every said RF receiver coil,
Magnetic resonance comprising signal processing means for reconstructing one image without aliasing using the thinned k-space data acquired for each RF receiver coil and the sensitivity distribution for each RF receiver coil In the imaging device,
The measurement control means acquires two or more pieces of k-space data in which the phase encoding step is thinned out for each RF receiving coil,
The magnetic resonance imaging apparatus , wherein the signal processing unit synthesizes the image for each k-space data having different thinning methods . The magnetic resonance imaging apparatus according to claim 1.
The signal processing means generates a sensitivity distribution of the RF receiving coil by using at least two of the two or more k-space data of different thinning methods . The magnetic resonance imaging apparatus according to claim 2.
The magnetic resonance imaging apparatus characterized in that the signal processing means generates a sensitivity distribution of the RF receiving coil using data in a low frequency region of the k-space data . The magnetic resonance imaging apparatus according to any one of claims 1 to 3,
The magnetic resonance imaging apparatus, wherein the measurement control unit acquires k-space data having two or more different thinning methods by thinning out different phase encoding steps. The magnetic resonance imaging apparatus according to claim 4.
The measurement control unit acquires k-space data obtained by thinning out odd-numbered phase encoding steps and k-space data obtained by thinning out even-numbered phase encoding steps. The magnetic resonance imaging apparatus according to any one of claims 1 to 4,
The measurement control means obtains k-space data having different two or more thinning methods by setting a phase encoding step interval in a high frequency region to be larger than a phase encoding step interval in a low frequency region. Magnetic resonance imaging device. The magnetic resonance imaging apparatus according to any one of claims 1 to 6,
The measurement control means alternately and repeatedly acquires k-space data having different thinning methods to the two or more,
  The magnetic resonance imaging apparatus, wherein the signal processing unit reconstructs the image every time the k-space data having the different thinning-out methods is acquired. The magnetic resonance imaging apparatus according to any one of claims 1 to 6,
Means for detecting heart beat of the subject;
The measurement control unit divides one cycle of the pulsation into a plurality of time phases, and acquires k-space data having different thinning methods for each time phase. A plurality of RF receiving coils for receiving magnetic resonance signals generated from the subject;
measurement control means for thinning out the k-space phase encoding step and acquiring k-space data thinned out for each RF receiving coil;
While generating a folded image using the k-space data acquired for each RF receiving coil, and removing the folding using a sensitivity distribution for each RF receiving coil, 1 In a magnetic resonance imaging apparatus comprising a signal processing means for synthesizing a plurality of images,
The measurement control means acquires two or more pieces of k-space data in which the phase encoding step is thinned out for each RF receiving coil,
The signal processing means includes the 2 At least of the above k-space data with different thinning methods 2 A magnetic resonance imaging apparatus characterized in that, using the two, a sensitivity distribution for each RF receiving coil is generated and the image is synthesized for each k-space data having a different thinning method.