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Abstract #1003

Heterogeneity of Viscoelastic Properties in Prostate Cancer Assessed by Ex Vivo MR Elastography

Rolf Reiter1,2, Shreyan Majumdar2, Steven Kearney2, Andre Kajdacsy‐Balla3, Virgilia Macias3, Michael Abern4, Simone Crivellaro4, Thomas J. Royston2, and Dieter Klatt2
1Radiology, Charité - Universitätsmedizin Berlin, Berlin, Germany, 2Bioengineering, University of Illinois at Chicago, Chicago, IL, United States, 3Pathology, University of Illinois at Chicago, Chicago, IL, United States, 4Urology, University of Illinois at Chicago, Chicago, IL, United States

We aimed to evaluate the heterogeneity of viscoelastic tissue properties of fresh prostatectomy specimens of men with prostate cancer using MR elastography and histopathology as a reference. Our results suggest that prostate cancer is characterized by a stiff yet homogeneous biomechanical signature. A possible explanation for this finding might be differences of healthy vs. cancerous tissue based on anatomical zones and their specific nonmalignant pathologies (prostatitis in the peripheral zone and benign prostatic hyperplasia in the central gland), and the unique nondestructive growth pattern of PC with intervening stroma which might provide a rigid scaffold.

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