A comparison of relative stopping power derived by fast kV‐switching dual‐energy CT, single‐energy CT, and proton CT in phantom and tissue
Hazel Wang, Yanling Qu, Yang Li, George Dedes, Maggie Stauffer, Robert Johnson, Paul Deak, Mark Pankuch · 2026
Read A comparison of relative stopping power derived by fast kV‐switching dual‐energy CT, single‐energy CT, and proton CT in phantom and tissue by Hazel Wang, Yanling Qu, Yang Li, George Dedes, Maggie Stauffer, Robert Johnson, Paul Deak, Mark Pankuch (2026) in the Tower of Babel, a free online library of public-domain works preserved in clean, searchable text. No sign-up. The full text is served as a plain-text file at a predictable URL, where text is present: https://antarctic-labs.com/tower-of-babel/PMC13440618.txt.
Description
Wang and colleagues compare three scan types for estimating relative stopping power, the measure that tells planners where a proton beam will halt in the body. Proton therapy can spare healthy tissue, but only if that stopping estimate is right. Their 2026 study scans known test inserts and real tissue samples three ways. It uses single energy CT, fast switching dual energy CT, and proton CT, which measures stopping directly and serves as the yardstick.
On test inserts, dual energy CT erred by about one percent on average. Single energy CT erred by more than four percent on the same inserts. In real tissue, dual energy values again sat closer to proton CT, with tighter spread, once tooth enamel was set aside. Dual energy CT, the authors conclude, should replace single energy scans for proton planning where accuracy is tightest.
Catalog record
| CREATOR | Hazel Wang, Yanling Qu, Yang Li, George Dedes, Maggie Stauffer, Robert Johnson, Paul Deak, Mark Pankuch |
|---|---|
| YEAR | 2026 |
| COLLECTION | PAPERS |
| FORMAT | TXT |
| FILE SIZE | 32 KB |
| LICENSE | https://creativecommons.org/licenses/by/4.0 |
| RIGHTS | CC BY |
| SOURCE | Europe PMC |