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TableĀ 3 Comparison of transcranial Doppler and magnetic resonance angiography findings

From: Diagnostic TCD for intracranial stenosis in acute stroke patients: experience from a tertiary care stroke center in Karachi, Pakistan

TCD MRA
>50% stenosis <50% stenosis
>50% stenosed 0 0
<50% stenosed 25 350
Failed to insonate 18 123
Total 43 473