Volume 39, Issue 6 pp. 1436-1442
Original Research

Rectal cancer: Dynamic contrast-enhanced MRI correlates with lymph node status and epidermal growth factor receptor expression

André Lollert MD

Corresponding Author

André Lollert MD

Department of Radiology, University of Mainz, Germany

Address reprint requests to: A.L., Department of Radiology, Johannes Gutenberg University Mainz, Langenbeckstr. 1, 55131 Mainz, Germany. E-mail: [email protected]Search for more papers by this author
Theodor Junginger MD

Theodor Junginger MD

Department of General, Abdominal and Transplant Surgery, University of Mainz, Germany

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Carl Christoph Schimanski MD

Carl Christoph Schimanski MD

1st Medical Department, University of Mainz, Germany

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Stefan Biesterfeld MD

Stefan Biesterfeld MD

Institute of Pathology, Department of Cytopathology, University of Düsseldorf, Germany

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Ines Gockel MD

Ines Gockel MD

Department of General, Abdominal and Transplant Surgery, University of Mainz, Germany

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Christoph Düber MD

Christoph Düber MD

Department of Radiology, University of Mainz, Germany

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Katja Oberholzer MD

Katja Oberholzer MD

Department of Radiology, University of Mainz, Germany

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First published: 11 October 2013
Citations: 28

Abstract

Purpose

To evaluate correlations between dynamic contrast-enhanced magnetic resonance imaging (DCE-MRI) and clinicopathologic data as well as immunostaining of the markers of angiogenesis epidermal growth factor receptor (EGFR) and CXC-motif chemokine receptor 4 (CXCR4) in patients with rectal cancer.

Materials and Methods

Presurgical DCE-MRI was performed in 41 patients according to a standardized protocol. Two quantitative parameters (k21, A) were derived from a pharmacokinetic two-compartment model, and one semiquantitative parameter (TTP) was assessed. Standardized surgery and histopathologic examinations were performed in all patients. Immunostaining for EGFR and CXCR4 was performed and evaluated with a standardized scoring system.

Results

DCE-MRI parameter A correlated significantly with the N category (P = 0.048) and k21 with the occurrence of synchronous and metachronous distant metastases (P = 0.029). A trend was shown toward a correlation between k21 and EGFR expression (P = 0.107). A significant correlation was found between DCE-MRI parameter TTP and the expression of EGFR (P = 0.044). DCE-MRI data did not correlate with CXCR4 expression.

Conclusion

DCE-MRI is a noninvasive method which can characterize microcirculation in rectal cancer and correlates with EGFR expression. Given the relationship between the dynamic parameters and the clinicopathologic data, DCE-MRI data may constitute a prognostic indicator for lymph node and distant metastases in patients with rectal cancer. J. Magn. Reson. Imaging 2014;39:1436–1442. © 2013 Wiley Periodicals, Inc.

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