Multiparametric spinal MRI for differentiating benign and malignant vertebral compression fractures.

Area of Science:

• Radiology
• Oncology
• Orthopedics

Background:

• Vertebral compression fractures (VCFs) can be benign or malignant, necessitating accurate differentiation for appropriate treatment.
• Distinguishing between benign and malignant VCFs is crucial for patient management and avoiding unnecessary invasive procedures.

Purpose of the Study:

• To evaluate the efficacy of multiparametric spinal MRI, including conventional, dynamic contrast-enhanced (DCE-MRI), and diffusion MRI, in differentiating benign from malignant VCFs.

Main Methods:

• A retrospective analysis of 42 patients with 50 VCFs who underwent pre-biopsy multiparametric spinal MRI.
• Quantitative parameters from diffusion-weighted imaging (DWI) and DCE-MRI (using the Tofts model) were analyzed.
• Statistical analysis included ANOVA, Mann-Whitney U, chi-square, and ROC analysis.

Main Results:

• Histopathological analysis classified 27 fractures as benign and 23 as malignant.
• Significant differences were observed between benign and malignant groups in perfusion MR curve type, Ktrans, Kep, and ADC (p < 0.05).
• Multiparametric evaluation using ADC, Ktrans, and Kep achieved high sensitivity (91.30%) and specificity (96.29%) in differentiating fracture types.

Conclusions:

• Multiparametric spinal MRI, integrating quantitative ADC, Kep, and Ktrans analysis, offers high diagnostic accuracy for distinguishing benign from malignant VCFs.
• This advanced imaging approach can potentially decrease the reliance on invasive diagnostic procedures.