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. 2021 Dec 22;13(12):e20603. doi: 10.7759/cureus.20603

Figure 3. Patient's MRI and MRV showing: (A) coronal T1 post-contrast venogram of the brain demonstrate non-opacification of the superior sagittal sinus with empty delta sign as well as the transverse sinuses. (B) Single MIP image from a 3D SPGR post-contrast demonstrating non-visualisation of the superior sagittal sinus, inferior sagittal, and transverse sinuses.

Figure 3

MRI: magnetic resonance imaging, MRV: magnetic resonance venography, MIP: maximum intensity projection, 3D SPGR: three-dimensional spoiled gradient recalled echo, T1: longitudinal relaxation time.