Neurovascular Contact of the Brain Stem in Hypertensive and Normotensive Subjects: MR Findings and Clinical Significance
Christina Thuerl
,a,
Lars C. Rumpa,
Maren Ottoa,
Jan T. Winterera,
Britta Schneidera,
Ludwig Funka and
Jörg Laubenbergera
a From the Departments of Radiology (C.T., J.T.W., B.S., J.L.) and Innere Medizin IV (L.C.R., M.O., L.F.), University of Freiburg, Freiburg, Germany.
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FIG 1. 49-year-old man with essential hypertension.
A and B, Axial TSE T2-weighted MR image (A) and MR angiogram obtained with a 3D-TOF sequence (B) show compression of the left ventrolateral medulla by the left vertebral artery with displacement of the brain stem (arrows) (grade III).
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FIG 2. 17-year-old normotensive man.
A and B, Axial TSE T2-weighted MR image (A) and MR angiogram obtained with a 3D-TOF sequence (B) show clear contact of the left posterior inferior cerebellar artery with the left ventrolateral medulla (arrows) (grade II).
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FIG 3. 41-year-old normotensive woman.
A and B, Axial TSE T2-weighted MR image (A) and MR angiogram obtained with a 3D-TOF sequence (B) show slight contact of the left posterior inferior cerebellar artery with the left ventrolateral medulla (arrows) over a short range (grade I).
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