Three-dimensional phase contrast MR cerebral venography with zero filling interpolation in the slice encoding...

Area of Science:

• Radiology
• Neuroimaging
• Medical Imaging

Background:

• Cerebral venous anatomy assessment is crucial for diagnosing various neurological conditions.
• Three-dimensional phase contrast magnetic resonance (MR) venography is a key technique for visualizing cerebral venous drainage.

Purpose of the Study:

• To evaluate the efficacy of a 3D phase contrast MR venography sequence with zero filling interpolation in depicting cerebral venous structures.
• To assess the conspicuity of dural venous sinuses and deep cerebral veins using this specific MR technique.

Main Methods:

• Fifty healthy volunteers underwent 1.5T MR imaging using a 3D phase contrast sequence.
• Zero filling interpolation was applied in the slice encoding direction.
• Multiplanar reconstruction (MPR) and maximum intensity projection (MIP) images were generated for analysis.

Main Results:

• Superior sagittal sinus, straight sinus, confluence of sinuses, right transverse/sigmoid sinuses, internal cerebral veins, and vein of Galen showed excellent conspicuity.
• Left transverse/sigmoid sinuses were well visualized (good score).
• Inferior dural venous sinuses, inferior sagittal sinus, and cortical veins were poorly demonstrated.

Conclusions:

• The 3D phase contrast MR venography sequence with zero filling interpolation provides good visualization of superior dural venous sinuses and major deep cerebral veins.
• The technique has limitations in demonstrating inferior venous structures and superficial cortical veins.