Abstract
This work assesses the temporal resolution of dual-source computed tomography (CT) in a visually intuitive manner. Exploiting the principles of ring artifact creation, a phantom containing a highly attenuating delta function signal (a wire) was rotated at the same speed as the gantry, creating a partial ring artifact where the angular extent of the artifact provides a direct indication of the temporal resolution. A demonstration of the effect of the evaluated 165 and 83 ms nominal temporal resolutions on motion artifacts in cardiac CT is provided using patient data.
Original language | English (US) |
---|---|
Pages (from-to) | 764-768 |
Number of pages | 5 |
Journal | Medical physics |
Volume | 35 |
Issue number | 2 |
DOIs | |
State | Published - 2008 |
Keywords
- CT technology
- Motion artifact
- Temporal resolution
ASJC Scopus subject areas
- Biophysics
- Radiology Nuclear Medicine and imaging