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Table 1 Comparison of three common imaging methods in diagnosing ICAS-LVO

From: Current knowledge of large vascular occlusion due to intracranial atherosclerosis: focusing on early diagnosis

  Comparing with DSA Comparing with multi-model CT Comparing with multi-model MRI
DSA   Strength:
1. Higher accuracy
Strength:
1. Higher accuracy
  Weakness:
1. Later than treatment
2. Treatment dependent
Weakness:
1. Later than treatment
2. Treatment dependent
Mult-model CT Strength:
1. Early diagnosis
2. Treatment independent
  Strength:
1. Rapid
2. Lower hardware requirement
3. Usually routinely performed
Weakness:
1. Less accuracy (based on current knowledge)
  Weakness:
1. Less informative about the occlusion site
2. Invasive process
3. Radiation
Multi-model MRI Strength:
1. Early diagnosis
2. Treatment independent
Strength:
1. More informative about the occlusion site
2. Usually noninvasive
3. Without radiation
 
Weakness:
1. Time-consuming
2. Higher equipment requirement
3. Unsuitable for patients with magnetic sensitive implant
Weakness:
1. Time-consuming
2. Higher hardware requirement
3. Unsuitable for patients with magnetic sensitive implant
4. Require strict immobilization of the patient