% IMPORTANT: The following is UTF-8 encoded. This means that in the presence
% of non-ASCII characters, it will not work with BibTeX 0.99 or older.
% Instead, you should use an up-to-date BibTeX implementation like “bibtex8” or
% “biber”.
@ARTICLE{Wolf:120597,
author = {M. B. Wolf$^*$ and C. Edler$^*$ and D. Tichy$^*$ and M.
Röthke$^*$ and H.-P. Schlemmer$^*$ and K. Herfarth and D.
Bonekamp$^*$},
title = {{D}iffusion-weighted {MRI} treatment monitoring of primary
hypofractionated proton and carbon ion prostate cancer
irradiation using raster scan technique.},
journal = {Journal of magnetic resonance imaging},
volume = {46},
number = {3},
issn = {1053-1807},
address = {New York, NY},
publisher = {Wiley-Liss},
reportid = {DKFZ-2017-01025},
pages = {850-860},
year = {2017},
note = {2017 Sep;46(3):850-860},
abstract = {To investigate parametric changes in the apparent diffusion
coefficient (ADC) at multiple timepoints during and after
completion of primary proton and carbon ion irradiation of
prostate cancer (PCa) as compared with normal-appearing
prostate parenchyma.In all, 92 patients with histologically
confirmed PCa received either proton or carbon ion
hypofractionated radiotherapy (RT). All were prospectively
evaluated with diffusion-weighted magnetic resonance imaging
(DWI-MRI) at five timepoints: baseline, day 10 during
therapy and 6 weeks, 6 months, and 18 months after
treatment. Linear mixed models (LMM) were used to evaluate
the effects of radiation, antihormonal therapy, time, and
type of particle irradiation on manual ADC measurements. ADC
differences related to prostate-specific antigen (PSA)
relapse according to PSA thresholds and to Vancouver rules
and Phoenix criteria were examined using LMM and unpaired
Student's t-test.A measurable and continuous increase of
tumor ADC measurements from baseline (1.194 × 10(-3) mm(2)
/s) during (1.350 × 10(-3) mm(2) /s, day 10, P = 0.006)
and after treatment (1.355/1.430/1.490 × 10(-3) mm(2) /s,
week 6 / month 6 / month 18, P = 0.001/<0.001/<0.001)
was found. ADC values of normal-appearing control tissue
remained unchanged. Androgen deprivation (P ≥ 0.320),
different PSA thresholds (P = 0.634), and PSA relapse
criteria according to Vancouver rules (P ≥ 0.776) had no
effect. A weak association between 18-month measurements and
Phoenix criteria (P = 0.046) was found.ADC parametric
changes were distinct in tumor tissue, highlighting the
ability of diffusion MRI to evaluate different aspects of
the microscopic pathophysiology. Although promising, their
use as noninvasive imaging biomarkers requires further
validation.1 J. Magn. Reson. Imaging 2017.},
cin = {E010 / C060},
ddc = {610},
cid = {I:(DE-He78)E010-20160331 / I:(DE-He78)C060-20160331},
pnm = {315 - Imaging and radiooncology (POF3-315)},
pid = {G:(DE-HGF)POF3-315},
typ = {PUB:(DE-HGF)16},
pubmed = {pmid:28152251},
doi = {10.1002/jmri.25635},
url = {https://inrepo02.dkfz.de/record/120597},
}