Application of community detection algorithm to investigate the correlation between imaging biomarkers of tumor metabolism, hypoxia, cellularity, and perfusion for precision radiotherapy in head and neck squamous cell carcinomas Journal Article

   

Authors:	Paudyal, R.; Grkovski, M.; Oh, J. H.; Schöder, H.; Nunez, D. A.; Hatzoglou, V.; Deasy, J. O.; Humm, J. L.; Lee, N. Y.; Shukla-Dave, A.
Article Title:	Application of community detection algorithm to investigate the correlation between imaging biomarkers of tumor metabolism, hypoxia, cellularity, and perfusion for precision radiotherapy in head and neck squamous cell carcinomas
Abstract:	The present study aimed to investigate the correlation at pre-treatment (TX) between quantitative metrics derived from multimodality imaging (MMI), including18 F-FDG-PET/CT,18 F-FMISO-PET/CT, DW-and DCE-MRI, using a community detection algorithm (CDA) in head and neck squamous cell carcinoma (HNSCC) patients. Twenty-three HNSCC patients with 27 metastatic lymph nodes underwent a total of 69 MMI exams at pre-TX. Correlations among quantitative metrics derived from FDG-PET/CT (SUL), FMSIO-PET/CT (K1, k3, TBR, and DV), DW-MRI (ADC, IVIM [D, D*, and f]), and FXR DCE-MRI [Ktrans, ve, and τi]) were investigated using the CDA based on a “spin-glass model” coupled with the Spearman’s rank, ρ, analysis. Mean MRI T2 weighted tumor volumes and SULmean values were moderately positively correlated (ρ = 0.48, p = 0.01). ADC and D exhibited a moderate negative correlation with SULmean (ρ ≤ −0.42, p < 0.03 for both). K1 and Ktrans were positively correlated (ρ = 0.48, p = 0.01). In contrast, Ktrans and k3max were negatively correlated (ρ = −0.41, p = 0.03). CDA revealed four communities for 16 metrics interconnected with 33 edges in the network. DV, Ktrans, and K1 had 8, 7, and 6 edges in the network, respectively. After validation in a larger population, the CDA approach may aid in identifying useful biomarkers for developing individual patient care in HNSCC. © 2021 by the authors. Licensee MDPI, Basel, Switzerland.
Keywords:	positron emission tomography; kinetic modeling; diffusion-weighted; dynamic contrast-enhanced; community detection algorithm; fast exchange regime model; spin-glass model
Journal Title:	Cancers
Volume:	13
Issue:	15
ISSN:	2072-6694
Publisher:	MDPI
Date Published:	2021-08-01
Start Page:	3908
Language:	English
DOI:	10.3390/cancers13153908
PROVIDER:	scopus
PMCID:	PMC8345739
PUBMED:	34359810
DOI/URL:	https://www.scopus.com/inward/record.uri?eid=2-s2.0-85111625009&doi=10.3390%2fcancers13153908&partnerID=40&md5=8e3d356c0e9d4be2abaecd05a3e2a54d
Notes:	Article -- Export Date: 1 September 2021 -- Source: Scopus