MR histology reveals tissue features beneath heterogeneous MRI signal in genetically engineered mouse models of sarcoma

Autor: Stephanie J. Blocker, Yvonne M. Mowery, Jeffrey I. Everitt, James Cook, Gary Price Cofer, Yi Qi, Alex M. Bassil, Eric S. Xu, David G. Kirsch, Cristian T. Badea, G. Allan Johnson
Jazyk: angličtina
Rok vydání: 2024
Předmět:
Zdroj: Frontiers in Oncology, Vol 14 (2024)
Druh dokumentu: article
ISSN: 2234-943X
DOI: 10.3389/fonc.2024.1287479
Popis: PurposeTo identify significant relationships between quantitative cytometric tissue features and quantitative MR (qMRI) intratumorally in preclinical undifferentiated pleomorphic sarcomas (UPS).Materials and methodsIn a prospective study of genetically engineered mouse models of UPS, we registered imaging libraries consisting of matched multi-contrast in vivo MRI, three-dimensional (3D) multi-contrast high-resolution ex vivo MR histology (MRH), and two-dimensional (2D) tissue slides. From digitized histology we generated quantitative cytometric feature maps from whole-slide automated nuclear segmentation. We automatically segmented intratumoral regions of distinct qMRI values and measured corresponding cytometric features. Linear regression analysis was performed to compare intratumoral qMRI and tissue cytometric features, and results were corrected for multiple comparisons. Linear correlations between qMRI and cytometric features with p values of
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