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TABLE 1: 
Vertebrobasilar abnormalities classified by the combination of MR angiography and BPAS-MRI findings
Classified ConditionsMR Angiography FindingBPAS-MR Imaging Finding
AtherosclerosisIrregular or stenoticAlmost normal
Occlusive conditionNot visible or hardly visibleAlmost normal
Hypoplastic vertebral arteryNot visible or hardly visibleNarrow or not visible
AneurysmAneurysmal dilation (unnecessary)Aneurysmal dilation
  • Note.—BPAS indicates basiparallel anatomical scanning.