Key result
MRI demonstrated a medullary infarction not seen on CT in all 4 cases, and a coexisting cerebellar infarction undetected by CT in 3 cases.
Why the study?
Does MRI improve the detection of medullary and cerebellar infarctions compared to CT in patients with Wallenberg's lateral medullary syndrome?
Case Report (n=4)
Does MRI improve the detection of medullary and cerebellar infarctions compared to CT in patients with Wallenberg's lateral medullary syndrome?
Absolute Event Rate: 100% vs 0%
MRI is superior to CT for detecting medullary and coexisting cerebellar infarctions in patients with Wallenberg's lateral medullary syndrome.
May support MRI when CT is negative in suspected Wallenberg syndrome; hypothesis-generating, requires prospective confirmation.
Four patients with a clinical diagnosis of Wallenberg's lateral medullary syndrome were studied with both Magnetic Resonance Imaging (MRI) and cranial Computed Tomography (CT). Using transverse images and both T1 and T2--weighted sequences, MRI demonstrated a medullary infarction not seen on CT in all four cases. MRI also demonstrated a coexisting cerebellar infarction in three cases which was unsuspected clinically and undetected by CT.
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Ross et al. (1986) conducted a case report in Wallenberg's lateral medullary syndrome (n=4). Magnetic Resonance Imaging (MRI) vs. Cranial Computed Tomography (CT) was evaluated on Detection of medullary infarction. MRI demonstrated a medullary infarction not seen on CT in all 4 cases, and a coexisting cerebellar infarction undetected by CT in 3 cases.
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