Skip to main content
Egyptian Journal of Radiology and Nuclear Medicine
Fig. 6 | Egyptian Journal of Radiology and Nuclear Medicine

Fig. 6

From: Suspicious lung lesions for malignancy: the lesion-to-spinal cord signal intensity ratio in T2WI and DWI–MRI versus PET/CT; a prospective pathologic correlated study with accuracy and ROC analyses

Fig. 6

A 67-year-old male patient with a history of primary hemangiopericytoma complained of chronic cough. A Axial chest CT cut (lung window) showed solitary right upper lobar posterior segmental sub-pleural solid homogeneous lung nodule showing minimum speculated outlines and faint pleural tag. B Coronal chest PET-CT image showing high 18F-FDG uptake at the right upper lobar nodular lesion. C, D Axial T2WI showing the iso-to-high signal intensity of the lesion. After placing two ROIs within the largest lesion and the spinal cord, the lesion-to-spinal cord signal intensity ratio was calculated = 1.2. E Axial DWI showing bright signal of restricted diffusion and lesion-to-spinal cord signal intensity ratio was calculated = 1.9. F ADC mapping images showing low signal intensity with minimum ADC (0.3 × 10−3 mm2/s) and mean ADC (0.6 × 10−3 mm2/s). Referring to the estimated cutoff values, T2WI L-to-SC SI ratio, DWI L-to-SC SI ratio, minimum ADC, and mean ADC suggested a malignant process. Pathologically proven solitary metastatic lung deposit

Back to article page