Dynamic contrast-enhanced derived cerebral blood volume correlates better with leak correction than with no correction for vascular endothelial growth factor, microvascular density, and grading of astrocytoma

Mohammad Haris, Nuzhat Husain, Anup Singh, Mazhar Husain, Savita Srivastava, Chhitiz Srivastava, Sanjay Behari, Ram Kishore S Rathore, Sona Saksena, Rakesh Kumar Gupta

Research output: Contribution to journalArticle

25 Citations (Scopus)

Abstract

OBJECTIVE:: To look for the impact of leak correction on correlation of perfusion indices with microvessel density (MVD) and vascular endothelial growth factor (VEGF) in astrocytomas. METHODS:: Dynamic contrast-enhanced magnetic resonance imaging was performed in 64 patients with varying grades of astrocytoma. Perfusion indices (ie, relative cerebral blood volume (rCBV) with and without leak correction, relative cerebral blood flow (rCBF), permeability (k), and leakage (ve) were quantified. MVD and VEGF-expressing cells were quantified from the excised tumor tissues and were correlated with perfusion metrics. RESULTS:: Perfusion indices showed significant difference among the astrocytoma grades. The corrected rCBV correlated better with MVD and VEGF. The corrected rCBV correlated (r ≤ 0.853, P ≤ <0.001) strongly, whereas the uncorrected rCBV (r ≤ 0.592, P ≤ <0.001) and k (r ≤ 0.498, P ≤ 0.001) correlated moderately with tumor grade. The corrected rCBV discriminated 100% low-grade from high-grade astrocytoma, while uncorrected rCBV did this in 95.5% low-grade and 71.4% high-grade astrocytoma. CONCLUSIONS:: Corrected rCBV better correlates with grade and is more accurate in discriminating low-grade from high-grade astrocytoma compared with uncorrected rCBV.

Original languageEnglish
Pages (from-to)955-965
Number of pages11
JournalJournal of Computer Assisted Tomography
Volume32
Issue number6
DOIs
Publication statusPublished - Nov 2008
Externally publishedYes

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Astrocytoma
Vascular Endothelial Growth Factor A
Perfusion
Microvessels
Cerebrovascular Circulation
Cerebral Blood Volume
Permeability
Neoplasms
Magnetic Resonance Imaging

Keywords

  • Angiogenesis
  • Brain tumor
  • Microvessel density
  • Perfusion MRI
  • Vascular endothelial growth factor

ASJC Scopus subject areas

  • Radiology Nuclear Medicine and imaging

Cite this

Dynamic contrast-enhanced derived cerebral blood volume correlates better with leak correction than with no correction for vascular endothelial growth factor, microvascular density, and grading of astrocytoma. / Haris, Mohammad; Husain, Nuzhat; Singh, Anup; Husain, Mazhar; Srivastava, Savita; Srivastava, Chhitiz; Behari, Sanjay; Rathore, Ram Kishore S; Saksena, Sona; Gupta, Rakesh Kumar.

In: Journal of Computer Assisted Tomography, Vol. 32, No. 6, 11.2008, p. 955-965.

Research output: Contribution to journalArticle

Haris, Mohammad ; Husain, Nuzhat ; Singh, Anup ; Husain, Mazhar ; Srivastava, Savita ; Srivastava, Chhitiz ; Behari, Sanjay ; Rathore, Ram Kishore S ; Saksena, Sona ; Gupta, Rakesh Kumar. / Dynamic contrast-enhanced derived cerebral blood volume correlates better with leak correction than with no correction for vascular endothelial growth factor, microvascular density, and grading of astrocytoma. In: Journal of Computer Assisted Tomography. 2008 ; Vol. 32, No. 6. pp. 955-965.
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abstract = "OBJECTIVE:: To look for the impact of leak correction on correlation of perfusion indices with microvessel density (MVD) and vascular endothelial growth factor (VEGF) in astrocytomas. METHODS:: Dynamic contrast-enhanced magnetic resonance imaging was performed in 64 patients with varying grades of astrocytoma. Perfusion indices (ie, relative cerebral blood volume (rCBV) with and without leak correction, relative cerebral blood flow (rCBF), permeability (k), and leakage (ve) were quantified. MVD and VEGF-expressing cells were quantified from the excised tumor tissues and were correlated with perfusion metrics. RESULTS:: Perfusion indices showed significant difference among the astrocytoma grades. The corrected rCBV correlated better with MVD and VEGF. The corrected rCBV correlated (r ≤ 0.853, P ≤ <0.001) strongly, whereas the uncorrected rCBV (r ≤ 0.592, P ≤ <0.001) and k (r ≤ 0.498, P ≤ 0.001) correlated moderately with tumor grade. The corrected rCBV discriminated 100{\%} low-grade from high-grade astrocytoma, while uncorrected rCBV did this in 95.5{\%} low-grade and 71.4{\%} high-grade astrocytoma. CONCLUSIONS:: Corrected rCBV better correlates with grade and is more accurate in discriminating low-grade from high-grade astrocytoma compared with uncorrected rCBV.",
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author = "Mohammad Haris and Nuzhat Husain and Anup Singh and Mazhar Husain and Savita Srivastava and Chhitiz Srivastava and Sanjay Behari and Rathore, {Ram Kishore S} and Sona Saksena and Gupta, {Rakesh Kumar}",
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T1 - Dynamic contrast-enhanced derived cerebral blood volume correlates better with leak correction than with no correction for vascular endothelial growth factor, microvascular density, and grading of astrocytoma

AU - Haris, Mohammad

AU - Husain, Nuzhat

AU - Singh, Anup

AU - Husain, Mazhar

AU - Srivastava, Savita

AU - Srivastava, Chhitiz

AU - Behari, Sanjay

AU - Rathore, Ram Kishore S

AU - Saksena, Sona

AU - Gupta, Rakesh Kumar

PY - 2008/11

Y1 - 2008/11

N2 - OBJECTIVE:: To look for the impact of leak correction on correlation of perfusion indices with microvessel density (MVD) and vascular endothelial growth factor (VEGF) in astrocytomas. METHODS:: Dynamic contrast-enhanced magnetic resonance imaging was performed in 64 patients with varying grades of astrocytoma. Perfusion indices (ie, relative cerebral blood volume (rCBV) with and without leak correction, relative cerebral blood flow (rCBF), permeability (k), and leakage (ve) were quantified. MVD and VEGF-expressing cells were quantified from the excised tumor tissues and were correlated with perfusion metrics. RESULTS:: Perfusion indices showed significant difference among the astrocytoma grades. The corrected rCBV correlated better with MVD and VEGF. The corrected rCBV correlated (r ≤ 0.853, P ≤ <0.001) strongly, whereas the uncorrected rCBV (r ≤ 0.592, P ≤ <0.001) and k (r ≤ 0.498, P ≤ 0.001) correlated moderately with tumor grade. The corrected rCBV discriminated 100% low-grade from high-grade astrocytoma, while uncorrected rCBV did this in 95.5% low-grade and 71.4% high-grade astrocytoma. CONCLUSIONS:: Corrected rCBV better correlates with grade and is more accurate in discriminating low-grade from high-grade astrocytoma compared with uncorrected rCBV.

AB - OBJECTIVE:: To look for the impact of leak correction on correlation of perfusion indices with microvessel density (MVD) and vascular endothelial growth factor (VEGF) in astrocytomas. METHODS:: Dynamic contrast-enhanced magnetic resonance imaging was performed in 64 patients with varying grades of astrocytoma. Perfusion indices (ie, relative cerebral blood volume (rCBV) with and without leak correction, relative cerebral blood flow (rCBF), permeability (k), and leakage (ve) were quantified. MVD and VEGF-expressing cells were quantified from the excised tumor tissues and were correlated with perfusion metrics. RESULTS:: Perfusion indices showed significant difference among the astrocytoma grades. The corrected rCBV correlated better with MVD and VEGF. The corrected rCBV correlated (r ≤ 0.853, P ≤ <0.001) strongly, whereas the uncorrected rCBV (r ≤ 0.592, P ≤ <0.001) and k (r ≤ 0.498, P ≤ 0.001) correlated moderately with tumor grade. The corrected rCBV discriminated 100% low-grade from high-grade astrocytoma, while uncorrected rCBV did this in 95.5% low-grade and 71.4% high-grade astrocytoma. CONCLUSIONS:: Corrected rCBV better correlates with grade and is more accurate in discriminating low-grade from high-grade astrocytoma compared with uncorrected rCBV.

KW - Angiogenesis

KW - Brain tumor

KW - Microvessel density

KW - Perfusion MRI

KW - Vascular endothelial growth factor

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