Background: Step&Shoot cardiac computed tomography (CT) provides the benefit of significant reduction in radiation dose compared to helical cardiac CT acquisitions. We think that a difference occurs in image quality by presence of overlap reconstruction (fractionated sentence, attempted to clarify).
Purpose: We studied the utility of Step&Shoot overlap reconstruction (SSOR).
Methods: We evaluated image quality of SSOR by comparing
z-axis spatial resolution on various s in scanners that SSOR is possible and for those that are impossible.
Results: SSOR indicated better
z-axis spatial resolution and less variation over the field of view (FOV) (in
z &
x-
y directions) as compared with Step&Shoot without overlap reconstruction (SS). In addition, SS showed inadequate image reproducibility due to aliasing error in
z-direction (lack of sampling interval).
Conclusions: SSOR would contribute to improvement of the image quality of Step&Shoot cardiac CT.
抄録全体を表示