title: Technical note: raw data-based approach to identify the optimal reconstruction phase in coronary computed tomography angiography.
abstract: For coronary computed tomography (CT) angiography, the reconstruction phase finally used has to be iteratively adapted to the patient-specific heart motion to provide optimal image quality and therewith to improve the diagnostic value. The purpose was to provide an automatically raw data-based identification of the patient-specific optimal reconstruction phase for cardiac computed tomography imaging. We validated our method by a visual assessment of 65 patient data sets. In 52% of all cases, the highest correlation of the computed and the visually identified optimal reconstruction phase was ensured. In 30% of the cases, our method provided a higher image quality compared with the results obtained in routine clinical work. Our identification of the optimal reconstruction phase is a reliable method and can improve the medical workflow by providing optimal image quality with the initial image reconstruction, making multiple time-consuming image reconstructions obsolete.
authors.affiliation: Institute of Medical Physics, University of Erlangen-Nürnberg, Erlangen, Germany. dirk.ertel@imp.uni-erlangen.de
authors.forename: Dirk
authors.initials: D
authors.lastname: Ertel
authors.forename: Tobias
authors.initials: T
authors.lastname: Pflederer
authors.forename: Stephan
authors.initials: S
authors.lastname: Achenbach
authors.forename: Marc
authors.initials: M
authors.lastname: Kachelrie
authors.forename: Yiannis
authors.initials: Y
authors.lastname: Kyriakou
authors.forename: Willi A
authors.initials: WA
authors.lastname: Kalender
mesh_terms: D000465:Algorithms; D017023:Coronary Angiography / Q000379:methods*; D003324:Coronary Artery Disease / Q000000981:diagnostic imaging*; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D011856:Radiographic Image Enhancement / Q000379:methods*; D011857:Radiographic Image Interpretation, Computer-Assisted / Q000379:methods*; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity; D014057:Tomography, X-Ray Computed / Q000379:methods*