Presentation
Headache
Patient Data
Bilateral rounded signal alteration at the body of both lateral ventricles adjacent to septum pellucidum, in the region of foramina of Monro. They appear of high FLAIR and low T2 signals.
Green arrows point at the site of CSF pulsation artifact.
Case Discussion
This appearance is mostly a ventricular CSF pulsation artifact. It shouldn't be confused with intraventricular pathology. This artifact is not seen on T1 W sequence. The jets of CSF are seen in coronal T2 W sequence.
This artifact, common in low-field MRI systems, mainly affects FLAIR sequence and occurs more common in young patients with small ventricular sizes.
MRI study was performed on a 0.36T MagSense 360 (Mindray, China) open MRI machine.