Volume 18, Issue 4 pp. 467-477
Original Research

Correlation of dynamic contrast enhancement MRI parameters with microvessel density and VEGF for assessment of angiogenesis in breast cancer

Min-Ying Su PhD

Corresponding Author

Min-Ying Su PhD

Center for Functional Onco-Imaging and Chao Family Comprehensive Cancer Center, University of California Irvine, Irvine, California

Min-Ying Su, Center for Functional Onco-Imaging, University of California, Irvine Hall 164, Irvine, CA 92697-5020

Yung-Liang Wan, First Department of Diagnostic Radiology, Change Gung Memorial Hospital at Linkou, College of Medicine and School of Medical Technology, Chang Gung University, 5 Fu-Hsing Road, Taoyuan, Taiwan 333

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Yun-Chung Cheung MD

Yun-Chung Cheung MD

Chang Gung Memorial Hospital at Linkou, Taoyuan, Taiwan

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John P. Fruehauf MD, PhD

John P. Fruehauf MD, PhD

Oncotech Inc., Tustin, California

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Hon Yu MS

Hon Yu MS

Center for Functional Onco-Imaging and Chao Family Comprehensive Cancer Center, University of California Irvine, Irvine, California

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Orhan Nalcioglu PhD

Orhan Nalcioglu PhD

Center for Functional Onco-Imaging and Chao Family Comprehensive Cancer Center, University of California Irvine, Irvine, California

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Eugene Mechetner PhD

Eugene Mechetner PhD

Oncotech Inc., Tustin, California

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Ainura Kyshtoobayeva MD, PhD

Ainura Kyshtoobayeva MD, PhD

Oncotech Inc., Tustin, California

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Shin-Cheh Chen MD

Shin-Cheh Chen MD

Chang Gung Memorial Hospital at Linkou, Taoyuan, Taiwan

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Swei Hsueh MD

Swei Hsueh MD

Chang Gung Memorial Hospital at Linkou, Taoyuan, Taiwan

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Christine E. McLaren PhD

Christine E. McLaren PhD

Center for Functional Onco-Imaging and Chao Family Comprehensive Cancer Center, University of California Irvine, Irvine, California

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Yung-Liang Wan MD

Corresponding Author

Yung-Liang Wan MD

Chang Gung Memorial Hospital at Linkou, Taoyuan, Taiwan

Min-Ying Su, Center for Functional Onco-Imaging, University of California, Irvine Hall 164, Irvine, CA 92697-5020

Yung-Liang Wan, First Department of Diagnostic Radiology, Change Gung Memorial Hospital at Linkou, College of Medicine and School of Medical Technology, Chang Gung University, 5 Fu-Hsing Road, Taoyuan, Taiwan 333

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First published: 19 September 2003
Citations: 139

Abstract

Purpose

To investigate the association between parameters obtained from dynamic contrast enhanced MRI (DCE-MRI) of breast cancer using different analysis approaches, as well as their correlation with angiogenesis biomarkers (vascular endothelial growth factor and vessel density).

Materials and Methods

DCE-MRI results were obtained from 105 patients with breast cancer (108 lesions). Three analysis methods were applied: 1) whole tumor analysis, 2) regional hot-spot analysis, and 3) intratumor pixel-by-pixel analysis. Early enhancement intensities and fitted pharmacokinetic parameters were studied. Paraffin blocks of 71 surgically resected specimens were analyzed by immunohistochemical staining to measure microvessel counts (with CD31) and vascular endothelial growth factor (VEGF) expression levels.

Results

MRI parameters obtained from the three analysis methods showed significant correlations (P < 0.0001), but a substantial dispersion from the linear regression line was noted (r = 0.72–0.97). The entire region of interest (ROI) vs. pixel population analyses had a significantly higher association compared to the entire ROI vs. hot-spot analyses. Cancer specimens with high VEGF expression had significantly higher CD31 microvessel densities than did specimens with low VEGF levels (P < 0.005). No significant association was found between MRI parameters obtained from the three analysis strategies and IHC based measurements of angiogenesis.

Conclusion

A consistent analysis strategy was important in the DCE-MRI study. In this series, none of these strategies yielded results for MRI based quantitation of tumor vascularity that were associated with IHC based measurements. Therefore, different analyses could not account for the lack of association. J. Magn. Reson. Imaging 2003;18:467–477. © 2003 Wiley-Liss, Inc.

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