TY - JOUR

T1 - Assessment Of The Correlation Between Dynamic Contrast Enhanced Computed Tomography And Histological And Vascular Biomarkers In Patients Resected For Colorectal Liver Metastases

AU - Lauridsen, Carsten

AU - Axelsen, Thomas

AU - Hansen, Martin Lundsgaard

AU - Fallentin, Eva

AU - Nielsen, Michael Bachmann

AU - Eefsen, Rikke Lovendahl

AU - Illemann, Martin

AU - Engelholm, Lars

AU - Vainer, Ben

AU - Hoyer-hansen, Gunilla

AU - Lund, Ida Katrine

AU - Willemoe, Gro L

AU - Rolff, Hans Christian

AU - Mogensen, Marie B

AU - Osterlind, Kell

PY - 2018

Y1 - 2018

N2 - Background: Dynamic contrast-enhanced computed tomography (DCE-CT) is a promising non-invasive method that provides the functional evaluation of the vascularity in normal and malignant tissue. The objectives of this consecutive study were to investigate the possible correlation between the perfusion characteristics of colorectal cancer liver metastases as examined by (DCE-CT) and the microvessel density of resected metastases. An additional aim was to investigate the correlation between the urokinase plasminogen activation receptor (uPAR) and perfusion values. Methods and findings: Eleven patients fulfilled the criteria for comparative analyses. The microvessel density values,uPAR level and the DCE-CT values were analysed. A perfusion index (PI) based on the measurement of arterial and portal flow (AF, PF) was defined as follows: PI=AF/ (AF+PF)%. The DCE-CT measurements were compared between metastatic and normal liver tissues. A Spearman correlation test was used for statistical analysis. The perfusion index and microvessel density values were significantly correlated (r=0.75; p=0.01). Furthermore, a higher volume of metastases significantly correlated with higher plasma levels of the uPAR forms (0.72 ≤ r ≥ 0.89; p < 0.05). Conclusions: DCE-CT may have the potential to measure the vascularity of colorectal liver metastases; however, the correlation between microvessel density and the perfusion values appears vague.

AB - Background: Dynamic contrast-enhanced computed tomography (DCE-CT) is a promising non-invasive method that provides the functional evaluation of the vascularity in normal and malignant tissue. The objectives of this consecutive study were to investigate the possible correlation between the perfusion characteristics of colorectal cancer liver metastases as examined by (DCE-CT) and the microvessel density of resected metastases. An additional aim was to investigate the correlation between the urokinase plasminogen activation receptor (uPAR) and perfusion values. Methods and findings: Eleven patients fulfilled the criteria for comparative analyses. The microvessel density values,uPAR level and the DCE-CT values were analysed. A perfusion index (PI) based on the measurement of arterial and portal flow (AF, PF) was defined as follows: PI=AF/ (AF+PF)%. The DCE-CT measurements were compared between metastatic and normal liver tissues. A Spearman correlation test was used for statistical analysis. The perfusion index and microvessel density values were significantly correlated (r=0.75; p=0.01). Furthermore, a higher volume of metastases significantly correlated with higher plasma levels of the uPAR forms (0.72 ≤ r ≥ 0.89; p < 0.05). Conclusions: DCE-CT may have the potential to measure the vascularity of colorectal liver metastases; however, the correlation between microvessel density and the perfusion values appears vague.

U2 - 10.14303/Imaging-Medicine.1000121

DO - 10.14303/Imaging-Medicine.1000121

M3 - Journal article

VL - 10

SP - 147

EP - 154

JO - Imaging in Medicine

JF - Imaging in Medicine

SN - 1755-5191

IS - 6

ER -