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The assessment of immature microvascular density in brain gliomas with dynamic contrast-enhanced magnetic resonance imaging.

Abstract：

PURPOSE:This study was designed to quantitatively evaluate the immature microvascular density (MVD) of brain gliomas using the volume transfer constant (K(trans)) and volume of extravascular extracellular space per unit volume of tissue (Ve) from dynamic contrast-enhanced magnetic resonance imaging (DCE-MRI) noninvasively. MATERIALS AND METHODS:Fifty-seven patients (35 males, 22 females; age range, 14-70, mean age 46±12 years old) with brain glioma were included in this study. The maximal values of K(trans) and Ve of all patients with brain glioma (grade II 24, III 7 and IV 26) were obtained. The CD105-microvascular density (CD105-MVD) of each tumor was measured in surgical specimen. The differences of K(trans), Ve and CD105-MVD between the different grades of gliomas were analyzed using the Mann-Whitney U-test. The Pearman correlation coefficient was determined between K(trans), Ve and CD105-MVD. A P-value of less than 0.05 was considered statistically significant. RESULTS:The differences in K(trans), Ve and CD105-MVD were statistically significant between low-grade glioma (LGG) and high-grade glioma (HGG) (P=0.001, P<0.001, P<0.001). The K(trans), Ve and CD105-MVD of grade II were significantly lower than those of grade III and IV. K(trans) and Ve were positively correlated with CD105-MVD in HGG (P<0.001, P<0.001). CONCLUSIONS:Our results suggest DCE-MRI plays an important part in noninvasively evaluating the immature MVD of brain gliomas.

journal_name

Eur J Radiol

journal_title

European journal of radiology

authors

Jia ZZ,Gu HM,Zhou XJ,Shi JL,Li MD,Zhou GF,Wu XH

doi

10.1016/j.ejrad.2015.05.035

subject

Has Abstract

pub_date

2015-09-01 00:00:00

pages

1805-9

issue

9

eissn

0720-048X

issn

1872-7727

pii

S0720-048X(15)30007-3

journal_volume

84

pub_type

杂志文章

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