Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
The CNR measurements of the physical phantom images reconstructed by the different algorithms.
| Methods | 90 kVp | 120 kVp | ||
|---|---|---|---|---|
|
| ||||
| ROIA | ROIB | ROIA | ROIB | |
| FBP | 6.1735 | 2.4076 | 7.6481 | 2.7716 |
| PWLS-TV | 9.4489 | 6.6737 | 11.2703 | 7.3962 |
| PWLS-NLM | 8.3524 | 5.1791 | 10.0140 | 6.5013 |
| PWLS-aviNLM | 10.8970 | 9.3684 | 12.3086 | 9.7798 |
