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@ARTICLE{Tessonnier:294554,
author = {T. Tessonnier$^*$ and D. I. Filosa and C. Karle$^*$ and F.
Baltazar$^*$ and L. Manti and L. Glimelius and T. Haberer
and A. Abdollahi$^*$ and J. Debus$^*$ and S. Mein$^*$ and I.
Dokic$^*$ and A. Mairani$^*$},
title = {{F}irst {D}osimetric and {B}iological {V}erification for
{S}pot-{S}canning {H}adron {A}rc {R}adiation {T}herapy
{W}ith {C}arbon {I}ons.},
journal = {Advances in radiation oncology},
volume = {9},
number = {12},
issn = {2452-1094},
address = {Amsterdam},
publisher = {Elsevier},
reportid = {DKFZ-2024-02329},
pages = {101611},
year = {2024},
note = {#EA:E050#LA:E210#},
abstract = {Spot-scanning hadron arc radiation therapy (SHArc) is a
novel delivery technique for ion beams with potentially
improved dose conformity and dose-averaged linear energy
transfer (LETd) redistribution. The first dosimetric
validation and in vitro verification of carbon ion arc
delivery is presented.Intensity-modulated particle therapy
(IMPT) and SHArc plans were designed to deliver homogeneous
physical dose or biological dose in a cylindrical polymethyl
methacrylate (PMMA) phantom. Additional IMPT carbon plans
were optimized for testing different LETd-boosting
strategies. Verifications of planned doses were performed
with an ionization chamber, and a clonogenic survival assay
was conducted using A549 cancer lung cell line.
Radiation-induced nuclear 53BP1 foci were assessed to
evaluate the cellular response in both normoxic and hypoxic
conditions.Dosimetric measurements and clonogenic assay
results showed a good agreement with planned dose and
survival distributions. Measured survival fractions and foci
confirmed carbon ions SHArc as a potential modality to
overcome hypoxia-induced radioresistance. LETd-boosted IMPT
plans reached similar LETd in the target as in SHArc plans,
promising similar features against hypoxia but at the cost
of an increased entrance dose. SHArc resulted, however, in a
lower dose bath but in a larger volume around the target.The
first proof-of-principle of carbon ions SHArc delivery was
performed, and experimental evidence suggests this novel
modality as an attractive approach for treating hypoxic
tumors.},
cin = {E050 / E210 / HD01},
ddc = {610},
cid = {I:(DE-He78)E050-20160331 / I:(DE-He78)E210-20160331 /
I:(DE-He78)HD01-20160331},
pnm = {315 - Bildgebung und Radioonkologie (POF4-315)},
pid = {G:(DE-HGF)POF4-315},
typ = {PUB:(DE-HGF)16},
pubmed = {pmid:39534427},
pmc = {pmc:PMC11555336},
doi = {10.1016/j.adro.2024.101611},
url = {https://inrepo02.dkfz.de/record/294554},
}