Truncation correction imaging enhancement method and system

A method for enhancing an image, comprising:

• receiving a first plurality of projections, wherein the first plurality of projections contain computed tomography (CT) data obtained in multiple motion phases and collected within an imaging device's field-of-view (FOV), and the CT data contains artifacts caused by a portion of a scanned object which is located outside of the imaging device's FOV;
• prior to performing reconstruction to generate a multi-phase image, generating a second plurality of projections by reducing the CT data from the first plurality of projections, wherein the reduced CT data are associated with an extended FOV that covers at least the portion of the scanned object and contains the artifacts caused by the portion of the scanned object;
• generating the multi-phase image based on the second plurality of projections;
• and
• generating a phase-correlated image based on the multi-phase image and the second plurality of projections.

A non-transitory machine-readable medium containing a set of instructions which, when executed by a processor, causes the processor to:

• receive a first plurality of projections, wherein the first plurality of projections contain computed tomography (CT) data obtained in multiple motion phases and collected within an imaging device's field-of-view (FOV), and the CT data contains artifacts caused by a portion of a scanned object which is located outside of the imaging device's FOV;
• prior to performing reconstruction to generate a multi-phase image, generate a second plurality of projections by expanding the first plurality of projections, wherein the second plurality of projections have an extended FOV that covers at least the portion of the scanned object;
• generate the multi-phase image based on the second plurality of projections;
• and
• generate a phase-correlated image by reducing from a multi-phase image artifacts identified by a phase-correlated difference image, wherein the phase-correlated difference image is reconstructed based on the first plurality of projections and the second plurality of projections and contains the artifacts caused by the portion of the scanned object.

A non-transitory machine-readable medium having a set of instructions which, when executed by a processor, cause the processor to:

• receive a first plurality of projections, wherein the first plurality of projections contain computed tomography (CT) data obtained in multiple motion phases and collected within an imaging device's field-of-view (FOV), and the CT data contains artifacts caused by a portion of a scanned object which is located outside of the imaging device's FOV;
• prior to performing reconstruction to generate a multi-phase image, generate a second plurality of projections by reducing the CT data from the first plurality of projections, wherein the reduced CT data are associated with an extended FOV that covers at least the portion of the scanned object and contains the artifacts caused by the portion of the scanned object;
• generate the multi-phase image based on the second plurality of projections;
• and
• generate a phase-correlated image based on the multi-phase image and the second plurality of projections.