Abstract: A system and method is provided for reducing partial scan reconstruction artifacts in sinogram data acquired as a series of sets of partial-scan projection views, each set of projection views extending over an angular range of less than 360 degrees. A full-scan sinogram matrix for each of the sets of projection views in the series is created and each set of partial-scan projection views is stored in a respective full-scan sinogram matrix to create an array of full-scan matrices having respective empty spaces not filled by partial-scan projection view data stored therein. The empty spaces are filled in each of the full-scan sinogram matrices using the partial-scan projection view data stored therein and an image of the subject is reconstructed from the full-scan sinogram matrices having the empty spaces filled using the partial-scan projection view data stored therein.

Abstract: A system and method for reducing image noise and artifacts in coronary computed tomography angiography includes acquisition of CT images at multiplicity of CT slices arranged in such a fashion throughout the phases of the cardiac cycle as to utilize the majority of the X-ray radiation to which the myocardium exposed during the cycle. The acquired imaging data is processed with the use of a TAF filter to reduce the amount of noise and artifacts associated with the CT's system operating at low tube current. The TAF filter is configured to adapt the filtering strength in time domain according to temporal variations of the same anatomical location as identified in its corresponding CT slices.

Abstract: A system and method for reducing image noise and artifacts in coronary computed tomography angiography includes acquisition of CT images at multiplicity of CT slices arranged in such a fashion throughout the phases of the cardiac cycle as to utilize the majority of the X-ray radiation to which the myocardium exposed during the cycle. The acquired imaging data is processed with the use of a TAF filter to reduce the amount of noise and artifacts associated with the CT's system operating at low tube current. The TAF filter is configured to adapt the filtering strength in time domain according to temporal variations of the same anatomical location as identified in its corresponding CT slices.

Abstract: A system and method is provided for reducing partial scan reconstruction artifacts in sinogram data acquired as a series of sets of partial-scan projection views, each set of projection views extending over an angular range of less than 360 degrees. A full-scan sinogram matrix for each of the sets of projection views in the series is created and each set of partial-scan projection views is stored in a respective full-scan sinogram matrix to create an array of full-scan matrices having respective empty spaces not filled by partial-scan projection view data stored therein. The empty spaces are filled in each of the full-scan sinogram matrices using the partial-scan projection view data stored therein and an image of the subject is reconstructed from the full-scan sinogram matrices having the empty spaces filled using the partial-scan projection view data stored therein.