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@ARTICLE{Wessendorf:302010,
author = {J. Wessendorf and A.-M. Spektor and B. Aboulmaouahib and J.
Daum and F. M. Glatting and K. Schlamp and M. Grott and F.
Eichhorn and C. P. Heußel and H. U. Kauczor and M. Kreuter
and M. Schreckenberger and H. Winter and U. Haberkorn$^*$
and M. Röhrich},
title = {{I}mage analysis: 68{G}a-{FAPI}-46 {PET} derived texture
parameters improve the differentiation of malignant and
benign pulmonary lesions.},
journal = {Cancer imaging},
volume = {25},
number = {1},
issn = {1470-7330},
address = {London},
publisher = {BioMed Central},
reportid = {DKFZ-2025-01208},
pages = {73},
year = {2025},
abstract = {Pulmonary lesions inconclusive in 18F-FDG PET/CT are a
known clinical problem. Both texture analysis and
68Ga-FAPI-46 have shown potential in thoracic oncological
problems but their combination has not been assessed yet.
This initial analysis aims to evaluate the utility of
68Ga-FAPI-46 PET texture parameters to differentiate between
lung cancer and benign pulmonary lesions inconclusive in
18F-FDG PET/CT.20 histologically confirmed pulmonary lesions
(13 lung cancer, 7 benign) in 19 patients were evaluated.
All patients underwent an inconclusive 18F-FDG PET/CT before
68Ga-FAPI-46 PET/CT. 64 texture parameters and conventional
parameters (SUVs, TBRs) were analyzed. Texture parameters
with significant (P < 0.05) differences between lung cancer
and benign lesions were detected by the Mann-Whitney U test.
Boxplots and a scatter plot matrix were created. Principal
component analyses and Spearman correlations were performed.
Receiver operating characteristics curves with area under
the curve (AUC) values were created for univariable and
bivariable logistic regression.The texture parameters HIST
Maximum grey level (AUC = 0.901), HIST Mean (AUC = 0.802),
HIST Mode (AUC = 0.835), HIST Range (AUC = 0.901) and GLCM
Information correlation 1 (AUC = 0.824) showed significant
differences between lung cancer and benign pulmonary
lesions. AUC values of conventional parameters (SUVmax,
SUVmean, TBR(SUVmax), TBR(SUVmean)) were 0.791, 0.868, 0.802
and 0.857, respectively. Maximum AUC values of bivariable
logistic regression were 0.967 and 0.978 for two texture
parameters and the combination of conventional and texture
parameters, respectively. Correlations between texture
parameter pairs were mainly moderate (0.4≤ρ≤0.59). 2/5
texture parameters (HIST Mean, HIST Mode) displayed no very
strong correlations (0.8≤ρ≤1.00) to any conventional
parameters or lesion volume.68Ga-FAPI-46 PET texture
parameters show great potential to differentiate between
lung cancer and benign pulmonary lesions inconclusive in
18F-FDG/PET. Spearman correlations indicate additional
information value of texture parameters.},
keywords = {Humans / Lung Neoplasms: diagnostic imaging / Lung
Neoplasms: pathology / Female / Male / Middle Aged / Aged /
Positron Emission Tomography Computed Tomography: methods /
Diagnosis, Differential / Gallium Radioisotopes /
Fluorodeoxyglucose F18 / Radiopharmaceuticals / Aged, 80 and
over / Adult / Image analysis (Other) / Lung cancer (Other)
/ Pulmonary lesion (Other) / Texture analysis (Other) /
Gallium Radioisotopes (NLM Chemicals) / Fluorodeoxyglucose
F18 (NLM Chemicals) / Radiopharmaceuticals (NLM Chemicals)},
cin = {E060},
ddc = {610},
cid = {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:40506754},
doi = {10.1186/s40644-025-00886-w},
url = {https://inrepo02.dkfz.de/record/302010},
}