Diffusion-Weighted Imaging and Diffusion Tensor Imaging for Differentiating High-Grade Glioma from Solitary Brain...

Area of Science:

• Neuroimaging
• Radiology
• Oncology

Background:

• Accurate differentiation between high-grade glioma and solitary brain metastasis is crucial for patient management and outcomes.
• Distinguishing these conditions impacts treatment strategies and prognosis.

Purpose of the Study:

• To assess the diagnostic performance of Diffusion-Weighted Imaging (DWI) and Diffusion Tensor Imaging (DTI) in differentiating high-grade glioma from solitary brain metastasis.
• Evaluate the efficacy of advanced MRI techniques for differential diagnosis.

Main Methods:

• A comprehensive literature search was conducted in Ovid MEDLINE and EMBASE up to November 10, 2017.
• Included studies focused on the diagnostic performance of DWI and DTI for differentiating high-grade glioma from solitary brain metastasis.
• Hierarchic logistic regression modeling was used to establish pooled sensitivity and specificity.

Main Results:

• Fourteen studies involving 1143 patients were analyzed.
• Pooled sensitivity for DWI and DTI was 79.8%, and pooled specificity was 80.9%.
• The area under the hierarchical summary receiver operating characteristic curve was 0.87, indicating moderate diagnostic performance with acceptable heterogeneity.

Conclusions:

• Diffusion-weighted imaging (DWI) and diffusion tensor imaging (DTI) demonstrate moderate diagnostic performance for differentiating high-grade glioma from solitary brain metastasis.
• These techniques provide valuable information for clinical decision-making in neuro-oncology.