Multi-parametric arterial spin labeling and diffusion-weighted imaging of paranasal sinuses masses.

Doaa Khedr, Ahmed Abdel Khalek Abdel Razek, Mona Talaat

Oral radiology 2023 Apr

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To evaluate arterial spin labeling (ASL) and diffusion-weighted imaging (DWI) in discrimination of benign from malignant paranasal sinus (PNS) tumors. A prospective study was done upon 42 cases of PNS masses that underwent magnetic resonance ASL and DWI of the head. Tumor blood flow (TBF) and apparent diffusion coefficient (ADC) of the masses were calculated by two observers. The pathological diagnosis was malignant (n = 28) and benign (n = 14) cases. For both observers, the malignant PNS masses had significantly higher TBF (P < 0.001, 0.001) and lower ADC (P < 0.001, 0.001) than in benign masses. The ROC curve analysis of TBF, The threshed TBF was (121.45, 122.68 mL/100 g/min) used for differentiation between benign and malignant PNS masses, revealed sensitivity (92.9%, 89.3%), specificity (85.7%, 85.7%), accuracy (90.5%, 88.1%) and the AUC was 0.87 and 0.86 by both observers. the ROC curve analysis of ADC, The threshold ADC (1.215, 1.205 X10-3mm2/s) was used for differentiation between benign and malignant PNS masses, revealed sensitivity (96.4%, 89.3%), specificity (78.6%, 78.6%), accuracy of (90.5%, 85.7%) and the AUC was 0.93 and 0.92 by both observers. Combined analysis of TBF and ADC used for differentiation between benign and malignant PNS masses had revealed sensitivity (96.4%, 89.3%), specificity (92.9%, 85.7%) accuracy of (95.2%, 88.1%) and AUC. (0.995, 0.985) for both observers. Combined using of TBF and ADC have a role in differentiation malignant from benign PNS masses. © 2022. The Author(s) under exclusive licence to Japanese Society for Oral and Maxillofacial Radiology.

Citation

Doaa Khedr, Ahmed Abdel Khalek Abdel Razek, Mona Talaat. Multi-parametric arterial spin labeling and diffusion-weighted imaging of paranasal sinuses masses. Oral radiology. 2023 Apr;39(2):321-328