| Autor: |
Delso, Gaspar, Fernandez, Brice, Wiesinger, Florian, Jian, Yiqiang, Bobb, Chad, Jansen, Floris |
| Zdroj: |
IEEE Transactions on Radiation and Plasma Medical Sciences; 2018, Vol. 2 Issue: 3 p244-249, 6p |
| Abstrakt: |
The goal of this paper was to assess the longitudinal repeatability of a bone identification method, based on the zero-echo-time MRI pulse sequence. The consistency of the bone maps—with potential applications in magnetic resonance-based attenuation correction of positron emission tomography data—was evaluated for a number of clinically realistic variations of the ideal acquisition conditions. The method was shown to be generally repeatable, with differences in the ±1% range. A number of potential issues were identified (e.g., sinus post-processing region placement variability, false positive bone structures near sharp coil sensitivity transitions, and axial coil coverage limitations) and mitigation strategies designed. |
| Databáze: |
Supplemental Index |
| Externí odkaz: |
|
