The cause of the artifact in 4-slice helical computed tomography

The causes of the image artifacts in a 4-slice helical computed tomography have been discussed as follows: (1) changeover in pairs of data used in z interpolation, (2) sampling interval in z, and (3) the cone angle. This study analyzes the first two causes of the artifact and describes how the curre...

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Veröffentlicht in:	Medical physics (Lancaster) 2004-07, Vol.31 (7), p.2033-2037
Hauptverfasser:	Taguchi, Katsuyuki, Aradate, Hiroshi, Saito, Yasuo, Zmora, Ilan, Han, Kyung S., Silver, Michael D.
Format:	Artikel
Sprache:	eng
Schlagworte:	Algorithms Anatomy, Cross-Sectional - methods charge exchange Computed radiography computed tomography computerised tomography helical scan Image analysis image artifacts image reconstruction image sampling Imaging, Three-Dimensional - methods interpolation Medical image artifacts medical image processing Medical image reconstruction Medical imaging multi‐slice CT phantoms Physicists Radiographic Image Enhancement - methods Radiographic Image Interpretation, Computer-Assisted - methods Reproducibility of Results Sensitivity and Specificity Tomography, Spiral Computed - methods
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