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@ARTICLE{Glatting:182569,
author = {F. M. Glatting$^*$ and J. Hoppner and H.-U. Kauczor and P.
E. Huber$^*$ and C. Kratochwil and F. L. Giesel and U.
Haberkorn$^*$ and M. Röhrich},
title = {{S}ubclass {A}nalysis of {M}alignant, {I}nflammatory and
{D}egenerative {P}athologies {B}ased on {M}ultiple
{T}imepoint {FAPI}-{PET} {A}cquisitions {U}sing {FAPI}-02,
{FAPI}-46 and {FAPI}-74.},
journal = {Cancers},
volume = {14},
number = {21},
issn = {2072-6694},
address = {Basel},
publisher = {MDPI},
reportid = {DKFZ-2022-02750},
pages = {5301},
year = {2022},
note = {#EA:E055#},
abstract = {FAPI-PET is a promising imaging technique for various
malignant as well as non-malignant pathologies. In a recent
retrospective analysis, we evaluated the diagnostic value of
repetitive early FAPI-PET-imaging with FAPI-02, FAPI-46 and
FAPI-74 for malignant, inflammatory/reactive and
degenerative pathologies. Here, we apply a subgroup analysis
to that dataset and describe the tracer-wise uptake kinetic
behavior of multiple types of FAPI-positive lesions, which
are encountered frequently during clinical routine.A total
of 24 cancer patients underwent whole-body FAPI-PET scans,
and images were acquired at 10, 22, 34, 46 and 58 min after
the administration of 150-250 MBq of 68Ga-FAPI tracer
molecules (eight patients each regarding FAPI-02, FAPI-46
and FAPI-74). Standardized uptake values (SUVmax and
SUVmean) of healthy tissues, cancer manifestations and
non-malignant lesions were measured and target-to-background
ratios (TBR) versus blood and fat were calculated for all
acquisition timepoints.Differential uptake behavior over
time was observed in several subclasses of malignant
lesions, inflammatory/reactive lesions and degenerative
lesions. These differences over time were particularly
manifested in the direct comparison between the uptakes
associated with pancreatic carcinoma (stable or increasing
over time) and inflammatory lesions of the pancreas
(markedly decreasing over time). Furthermore, marked
differences were found between the three tracer variants
regarding their time-dependent uptake and TBRs within
different subclasses of malignant, inflammatory/reactive and
degenerative pathologies.Multiple timepoint FAPI-PET/CT is a
promising innovative imaging technique that provides
additional imaging information compared to single timepoint
imaging. Differences in the kinetic behavior of malignant
and benign pathologies can facilitate the interpretation of
FAPI-positive lesions.},
keywords = {FAPI (Other) / PET (Other) / cancer (Other) / degeneration
(Other) / fibroblast activation protein (Other) /
inflammation (Other) / pancreatic carcinoma (Other) /
pancreatitis (Other)},
cin = {E055 / E060},
ddc = {610},
cid = {I:(DE-He78)E055-20160331 / I:(DE-He78)E060-20160331},
pnm = {315 - Bildgebung und Radioonkologie (POF4-315)},
pid = {G:(DE-HGF)POF4-315},
typ = {PUB:(DE-HGF)16},
pubmed = {pmid:36358720},
doi = {10.3390/cancers14215301},
url = {https://inrepo02.dkfz.de/record/182569},
}