TY - JOUR
T1 - Prognostic value of DCE-CT-derived blood volume and flow compared to core biopsy microvessel density in patients with metastatic renal cell carcinoma
AU - Drljevic-Nielsen, Aska
AU - Rasmussen, Finn
AU - Nielsen, Patricia Switten
AU - Stilling, Christina
AU - Thorup, Kennet
AU - Mains, Jill Rachel
AU - Madsen, Hans Henrik Torp
AU - Donskov, Frede
N1 - Publisher Copyright:
© 2021, The Author(s).
PY - 2021/7
Y1 - 2021/7
N2 - Background: Angiogenesis is prominent in metastatic renal cell carcinoma (mRCC). We compared two angiogenesis assessment methods: dynamic contrast-enhanced computed tomography (DCE-CT)-derived blood volume (BV) and blood flow (BF) and core biopsy microvessel density (MVD). Methods: As planned in DaRenCa Study-1 study, DCE-CT and core biopsy were performed from the same tumour/metastasis at baseline. MVD was assessed by CD34 immunostaining in tumour (CD34-indexT) or tumour including necrosis (CD34-indexTN). BV and BF were assessed using the DCE-CT software. Overall survival (OS) and progression-free survival (PFS) were assessed by Kaplan-Meier analysis. Spearman coefficient (rho) tested the correlation between MVD and BV, BF, or CT density (HU). Results: At baseline, 25 patients had analysable scans and tissue. BVdeconv, BVPatlak, and BFdeconv > median were associated with favourable OS (43.2 versus 14.6 months, p = 0.002; 31.6 versus 20.2 months, p = 0.015; and 31.6 versus 24.5 months, p = 0.019). CD34-indexT and CD34-indexTN did not correlate with age (p = 0.543), sex (p = 0.225), treatment (p = 0.848), International mRCC Database Consortium category (p = 0.152), synchronous versus metachronous metastatic disease (p = 0.378), or tumour volume (p = 0.848). CD34-indexT or CD34-indexTN > median was not associated with PFS (p = 0.441 and p = 0.854, respectively) or OS (p = 0.987 and p =0.528, respectively). CD34-indexT or CD34-indexTN was not correlated with BV, BF, or HU (rho 0.20–0.26). Conclusions: Differently from MVD, DCE-CT-derived BV and BF had prognostic impact and may better reflect angiogenesis in mRCC. Trial registration: NCT01274273
AB - Background: Angiogenesis is prominent in metastatic renal cell carcinoma (mRCC). We compared two angiogenesis assessment methods: dynamic contrast-enhanced computed tomography (DCE-CT)-derived blood volume (BV) and blood flow (BF) and core biopsy microvessel density (MVD). Methods: As planned in DaRenCa Study-1 study, DCE-CT and core biopsy were performed from the same tumour/metastasis at baseline. MVD was assessed by CD34 immunostaining in tumour (CD34-indexT) or tumour including necrosis (CD34-indexTN). BV and BF were assessed using the DCE-CT software. Overall survival (OS) and progression-free survival (PFS) were assessed by Kaplan-Meier analysis. Spearman coefficient (rho) tested the correlation between MVD and BV, BF, or CT density (HU). Results: At baseline, 25 patients had analysable scans and tissue. BVdeconv, BVPatlak, and BFdeconv > median were associated with favourable OS (43.2 versus 14.6 months, p = 0.002; 31.6 versus 20.2 months, p = 0.015; and 31.6 versus 24.5 months, p = 0.019). CD34-indexT and CD34-indexTN did not correlate with age (p = 0.543), sex (p = 0.225), treatment (p = 0.848), International mRCC Database Consortium category (p = 0.152), synchronous versus metachronous metastatic disease (p = 0.378), or tumour volume (p = 0.848). CD34-indexT or CD34-indexTN > median was not associated with PFS (p = 0.441 and p = 0.854, respectively) or OS (p = 0.987 and p =0.528, respectively). CD34-indexT or CD34-indexTN was not correlated with BV, BF, or HU (rho 0.20–0.26). Conclusions: Differently from MVD, DCE-CT-derived BV and BF had prognostic impact and may better reflect angiogenesis in mRCC. Trial registration: NCT01274273
KW - Blood volume
KW - Carcinoma (renal cell)
KW - Microvascular density
KW - Prognosis
KW - Tomography (x-ray computed)
UR - http://www.scopus.com/inward/record.url?scp=85111494915&partnerID=8YFLogxK
U2 - 10.1186/s41747-021-00232-2
DO - 10.1186/s41747-021-00232-2
M3 - Journal article
C2 - 34327591
AN - SCOPUS:85111494915
SN - 2509-9280
VL - 5
JO - European Radiology Experimental
JF - European Radiology Experimental
IS - 1
M1 - 32
ER -