Method and apparatus for updating multiple magnetic resonance datasets acquired using a parallel acquisition technique

A magnetic resonance (MR) apparatus comprising:

• an MR data acquisition scanner;
• a computer configured to operate said MR data acquisition scanner to acquire a first dataset from a subject, said first dataset comprising Nyquist undersampled MR measurement data, acquired with at least two reception coils of said scanner, said MR measurement data of said first dataset comprising first calibration data;
• said computer being configured to operate said MR data acquisition scanner to acquire at least one further dataset from said subject, said further dataset comprising Nyquist undersampled MR measurement data acquired with said at least two reception coils, and said MR measurement data in said at least one further dataset comprising second calibration data;
• said computer being configured to generate a common calibration dataset from said first and second calibration data;
• and
• said computer being configured to produce an updated first image dataset and at least one updated further image dataset from said common calibration dataset and said first dataset and said at least one further dataset, and to make the updated first and further image datasets available from said computer as a datafile for display thereof.

A non-transitory, computer-readable data storage medium encoded with programming instructions, said storage medium being loaded into a computer system of a magnetic resonance (MR) apparatus comprising an MR data acquisition scanner, and said programming instructions causing said computer system to:

• receive a first dataset acquired from a subject, said first dataset comprising Nyquist undersampled MR measurement data, acquired with at least two reception coils of said scanner, said MR measurement data of said first dataset comprising first calibration data;
• receive at least one further dataset acquired from said subject, said further dataset comprising Nyquist undersampled MR measurement data acquired with said at least two reception coils, and said MR measurement data in said at least one further dataset comprising second calibration data;
• generate a common calibration dataset from said first and second calibration data;
• and
• produce an updated first dataset and at least one updated further image dataset from said common calibration image dataset and said first dataset and said at least one further dataset, and make the updated first and further image datasets available from said computer as a datafile for display thereof.