Imaging biomarkers in primary brain tumours.

Area of Science:

• Oncology
• Radiology
• Neuroscience

Background:

• Medical imaging has evolved, leading to the concept of imaging biomarkers for noninvasive detection of biological features.
• These biomarkers are essential for identifying therapeutic targets in oncology, including pathways related to tumor growth, apoptosis evasion, and angiogenesis.
• Primary brain tumors require advanced, quantitative, and noninvasive imaging biomarkers due to improvements in neurosurgery, radiotherapy, and targeted drug development.

Purpose of the Study:

• To review current molecular imaging techniques and biomarkers for primary brain tumors.
• To discuss the role of Positron Emission Tomography (PET) and Magnetic Resonance Imaging (MRI) in evaluating brain tumors.
• To explore potential future developments in experimental imaging biomarkers for brain tumors.

Main Methods:

• Review of current literature on imaging biomarkers in clinical practice for primary brain tumors.
• Focus on techniques and biomarkers utilized in PET and MRI.
• Discussion of experimental imaging biomarker developments.

Main Results:

• Conventional radiological criteria are often insufficient for optimal therapeutic decisions and response assessment in brain tumors.
• Molecular imaging, particularly PET and MRI, plays a critical role in brain tumor evaluation.
• Established imaging biomarkers are essential for reproducible, quantitative assessment.

Conclusions:

• There is a growing need for advanced, quantitative, and noninvasive imaging biomarkers in neuro-oncology.
• PET and MRI-based imaging biomarkers are indispensable for the clinical evaluation of primary brain tumors.
• Future research holds promise for novel experimental imaging biomarkers to further enhance brain tumor management.