Table 1. | Total sample apparent diffusion coefficient values data of inflammatory lesions obtained by investigators (main results pertaining to ADC) that included inflammatory lesions in the group of benign lesions |
| Study | Year | MRI |
Inflammatory lesion considered |
Inflammatory lesion ADC value reported |
|---|---|---|---|---|
| Taha et al. [20] | 2014 | 1.5 T | Mucocele, inflammatory polyp, fungal sinusitis | 1.6 x 10-3 mm2/s |
| El-Gerby and El-Anwar [21] | 2017 | 1.5 T |
Acute chronic sinusitis, sinonasal polyps, fungal sinusitis, mucocele and Wegner’s granulomatosis |
Ranged from 1.54 x 10-3 mm2/s to 2.72 x 10-3 mm2/s |
| Kilickesmez et al. [22] | 2018 | 1.5 T | Mucosal thickening | 2.23 x 10-3 mm2/s |
| Xiao et al. [31] | 2018 | 3 T | Inflammatory polyp |
Reported only for the group of benign lesions |
| Das et al. [32] | 2017 | 1.5 T | Inflammatory polyp | 1.84 x 10-3 mm2/s |
| Jiang et al.[33] | 2017 | 3 T | Inflammatory polyp | 1.61 x 10-3 mm2/s |
| Wang et al. [34] | 2017 | 3 T | Inflammatory polyp |
Reported only for the group of benign lesions |
| Sasaki et al. [35] | 2011 | 1.5 T |
Rhinosinusitis, inflammatory polyps, fungal infection |
1.5 x 10-3 mm2/s |
| Sasaki et al. [36] | 2011 | 1.5 T |
Rhinosinusitis, inflammatory polyps, fungal infection |
1.48 x 10-3 mm2/s |
| Razek et al. [37] | 2009 | 1.5 T | Inflammatory polyps | 1.95 x 10-3 mm2/s |
| White and Zhang [38] | 2008 | 1.5 T | Sinonasal secretions | Ranged from 2.91 to 35.7 x 10-4 mm2/s |
MRI = magnetic resonance imaging; ADC = apparent diffusion coefficient. |