Velocity-Selective Arterial Spin Labeling Perfusion in Monitoring High Grade Gliomas Following Therapy: Clinical Feasibility at 1.5T and Comparison with Dynamic Susceptibility Contrast Perfusion

Sebastian Lambrecht, Dapeng Liu, Omar Dzaye, David O. Kamson, Jonas Reis, Thomas Liebig, Matthias Holdhoff, Peter Van Zijl, Qin Qin, Doris D.M. Lin

Research output: Contribution to journalArticlepeer-review

Abstract

MR perfusion imaging is important in the clinical evaluation of primary brain tumors, particularly in differentiating between true progression and treatment-induced change. The utility of velocity-selective ASL (VSASL) compared to the more commonly utilized DSC perfusion technique was assessed in routine clinical surveillance MR exams of 28 patients with high-grade gliomas at 1.5T. Using RANO criteria, patients were assigned to two groups, one with detectable residual/recurrent tumor (“RT”, n = 9), and the other with no detectable residual/recurrent tumor (“NRT”, n = 19). An ROI was drawn to encompass the largest dimension of the lesion with measures normalized against normal gray matter to yield rCBF and tSNR from VSASL, as well as rCBF and leakage-corrected relative CBV (lc-rCBV) from DSC. VSASL (rCBF and tSNR) and DSC (rCBF and lc-rCBV) metrics were significantly higher in the RT group than the NRT group allowing adequate discrimination (p < 0.05, Mann–Whitney test). Lin’s concordance analyses showed moderate to excellent concordance between the two methods, with a stronger, moderate correlation between VSASL rCBF and DSC lc-rCBV (r = 0.57, p = 0.002; Pearson’s correlation). These results suggest that VSASL is clinically feasible at 1.5T and has the potential to offer a noninvasive alternative to DSC perfusion in monitoring high-grade gliomas following therapy.

Original languageEnglish (US)
Article number126
JournalBrain Sciences
Volume14
Issue number2
DOIs
StatePublished - Feb 2024

Keywords

  • arterial spin labeling (ASL)
  • dynamic susceptibility contrast (DSC)
  • glioblastoma
  • glioma
  • perfusion
  • velocity-selective arterial spin labeling (VSASL)

ASJC Scopus subject areas

  • General Neuroscience

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