PMID: 15346048Sep 4, 2004Paper

VEGF expression in osteosarcoma correlates with vascular permeability by dynamic MRI

Clinical Orthopaedics and Related Research
Bang H HoangJohn H Healey

Abstract

Dynamic enhanced magnetic resonance imaging has been used to assess tumor angiogenesis in osteosarcoma. Vascular endothelial growth factor has been shown to correlate with pulmonary metastasis and a poor prognosis in osteosarcoma. The purpose of this investigation was to determine whether vascular endothelial growth factor expression in osteosarcoma correlates with vascular permeability detected by dynamic enhanced magnetic resonance imaging and to explore the role of dynamic enhanced magnetic resonance imaging as a noninvasive means of assessing tumor angiogenic activity. Fifty-five osteosarcoma patients with osteosarcoma enrolled in a treatment protocol that included dynamic enhanced magnetic resonance imaging. In 15 patients, tumor tissues were available for vascular endothelial growth factor immunohistochemical studies. A two-compartment model used the exchange rate constants (kep) between the plasma and tumor compartments to quantify vascular permeability during dynamic magnetic resonance imaging studies. Immunohistochemical staining for vascular endothelial growth factor was graded according to the intensity and number of positively stained cells. Vascular endothelial growth factor-positive tumors showed higher mean vascu...Continue Reading

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Citations

Jan 20, 2006·Journal of Veterinary Pharmacology and Therapeutics·B WolfesbergerM Egerbacher
Jul 11, 2006·Clinical Orthopaedics and Related Research·R M CharityR J Grimer
Feb 6, 2010·Expert Review of Anticancer Therapy·Sameer Bakhshi, Venkatraman Radhakrishnan
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Jan 16, 2021·Cancers·Claudia Ollauri-Ibáñez, Itziar Astigarraga
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