Clinical applications of dynamic susceptibility contrast perfusion-weighted MR imaging in brain tumours

Area of Science:

• Neuroimaging
• Oncology
• Radiology

Background:

• Dynamic susceptibility contrast perfusion-weighted imaging (DSC-PWI) provides hemodynamic data for brain tumors.
• Perfusion parameters like relative cerebral blood flow (rCBF), relative cerebral blood volume (rCBV), and mean transit time (MTT) assess tumor vascularity and angiogenesis.
• Conventional MRI sequences may not fully capture these crucial tumor characteristics.

Purpose of the Study:

• To review the application of perfusion MRI in the study of brain tumors.
• To summarize personal experience and literature findings on DSC-PWI in neuro-oncology.
• To clarify the clinical utility of DSC-PWI for brain tumor assessment.

Main Methods:

• Review of existing literature and personal clinical experience with DSC-PWI in brain tumor patients.
• Analysis of perfusion maps and calculation of key perfusion parameters (rCBF, rCBV, MTT).
• Comparison of DSC-PWI findings with conventional MRI sequences and histopathological data.

Main Results:

• DSC-PWI reveals detailed hemodynamic characteristics of neoplastic tissue in the central nervous system (CNS).
• Perfusion parameters aid in evaluating tumor vascularity and angiogenesis, offering supplementary information to standard MRI.
• The clinical role of DSC-PWI in daily practice for brain tumor management requires further definition.

Conclusions:

• Perfusion MRI, specifically DSC-PWI, is a valuable tool for assessing brain tumor hemodynamics.
• It provides critical insights into vascularity and angiogenesis, enhancing diagnostic capabilities.
• Further research and standardization are needed to fully integrate DSC-PWI into routine clinical practice for brain tumors.