To evaluate the necessity of quantitative cerebral blood flow (CBF) maps in routine clinical use of arterial spin labelling (ASL) MRI for brain tumour surveillance, with implications for improving diagnostic efficiency.
Key Findings:
ASL-PWI and ASL-CBF ratios were found to be highly correlated (r > 0.85).
Semiquantitative and visual assessment methods provided efficient alternatives to quantitative CBF mapping.
ASL-PWI maps can simplify the workflow in clinical settings without compromising diagnostic accuracy.
Interpretation:
The study suggests that semiquantitative and visual assessments of ASL-PWI maps may suffice for brain tumour surveillance, potentially eliminating the need for complex CBF quantification, thus enhancing clinical workflow.
Limitations:
The study was conducted at a single centre, which may limit generalizability.
The retrospective design may introduce bias in data collection and interpretation, affecting the reliability of findings.
Conclusion:
Routine clinical use of ASL for brain tumour surveillance may not require quantitative CBF maps, as semiquantitative and visual assessments are effective and simplify the workflow, potentially improving patient management.
