Cancers, Vol. 13, Pages 1891: Tumor Solid Stress: Assessment with MR Elastography under Compression of Patient-Derived Hepatocellular Carcinomas and Cholangiocarcinomas Xenografted in Mice
Cancers, Vol. 13, Pages 1891: Tumor Solid Stress: Assessment with MR Elastography under Compression of Patient-Derived Hepatocellular Carcinomas and Cholangiocarcinomas Xenografted in Mice
Cancers doi: 10.3390/cancers13081891
Authors:
Gwenaël Pagé
Marion Tardieu
Jean-Luc Gennisson
Laurent Besret
Philippe Garteiser
Bernard E. Van Beers
Malignant tumors have abnormal biomechanical characteristics, including high viscoelasticity, solid stress, and interstitial fluid pressure. Magnetic resonance (MR) elastography is increasingly used to non-invasively assess tissue viscoelasticity. However, solid stress and interstitial fluid pressure measurements are performed with invasive methods. We studied the feasibility and potential role of MR elastography at basal state and under controlled compression in assessing altered biomechanical features of malignant liver tumors. MR elastography was performed in mice with patient-derived, subcutaneously xenografted hepatocellular carcinomas or cholangiocarcinomas to measure the basal viscoelasticity and the compression stiffening rate, which corresponds to the slope of elasticity versus applied compression. MR elastography measurements were correlated with invasive pressure measurements and digital histological readings. Significant differences in MR elastography parameters, pressure, and histological measurements were observed between tumor models. In multivariate analysis, collagen content and interstitial fluid pressure we...
Source: Cancers - Category: Cancer & Oncology Authors: Gwena ël Pagé Marion Tardieu Jean-Luc Gennisson Laurent Besret Philippe Garteiser Bernard E. Van Beers Tags: Article Source Type: research
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