The effect of calibration and detector temperature on the reconstructed cone beam computed tomography image quality a study for the workflow of the iCAT Classic equipment /
OBJECTIVE: The image quality of the reconstructed dental cone beam computed tomography (CBCT) acquisition is strongly dependent on the characteristics of the applied detector. Some flat panel detector (FPD) types require a warming-up period (WUP) to achieve a steady-state temperature; and some of th...
Elmentve itt :
| Szerzők: | |
|---|---|
| Dokumentumtípus: | Cikk |
| Megjelent: |
Elsevier
2015
|
| Sorozat: | ORAL SURGERY ORAL MEDICINE ORAL PATHOLOGY ORAL RADIOLOGY
119 No. 4 |
| doi: | 10.1016/j.oooo.2014.12.009 |
| mtmt: | 2848446 |
| Online Access: | http://publicatio.bibl.u-szeged.hu/12271 |
| Tartalmi kivonat: | OBJECTIVE: The image quality of the reconstructed dental cone beam computed tomography (CBCT) acquisition is strongly dependent on the characteristics of the applied detector. Some flat panel detector (FPD) types require a warming-up period (WUP) to achieve a steady-state temperature; and some of them, those that have a cesium iodide detector, may require a calibration process (CP) after each WUP. STUDY DESIGN: Quality-assurance phantom was used for the evaluation of image quality, including spatial accuracy and density response with and without WUP and CP using iCAT Classic equipment. RESULTS: The correlation between the measured gray values and the multidetector computed tomography (MDCT) values deviated slightly from linearity (defined by the 45-degree line). There was no detectable difference in the spatial accuracy of the four different scanning modes. CONCLUSIONS: Although the WUP is important to reach the required steady-state temperature, the CP has a greater effect on the image quality. |
|---|---|
| Terjedelem/Fizikai jellemzők: | 473-480 |
| ISSN: | 2212-4403 |