Table 5

Characteristics of patients with internal carotid artery (ICA) and middle cerebral artery (MCA) disease

No of patients (n)2815116
Benzodiazepine receptor index (%)
 MCA territory (affected)24.4±24.619.7±18.444.9±43.938.1±45.5
 ACA territory20.2±18.312.9±16.416.1±13.0*4.2±6.2
Cerebral blood flow (ml/100 g/min)
 MCA territory42.8±6.744.9±7.342.0±10.445.3±12.6
 ACA territory44.4±6.745.8±7.347.2±12.250.3±15.9
Cerebral metabolic rate of oxygen (ml/100 g/min)
 MCA territory3.53±0.323.81±0.483.72±0.513.73±0.35
 ACA territory3.60±0.313.82±0.613.95±0.513.94±0.66
Age (years)68±763±1158±658±6
Sex, male/female (n)22/612/36/55/1
Side of disease, left/right (n)14/147/85/62/4
Symptomatic (n)15/138/78/35/1
Subcortical infarction (n)2110104
 Size (mm2)101±140155±238231±278110±115
 Frontal infarction (n)13684
Wisconsin Card Sorting Test parameters (n)
 Categories achieved1.2±1.0*4.2±1.11.7±1.1*5.0±0.6
 Total errors30.6±6.8*16.8±4.023.6±6.3*13.8±4.3
 Perseverative errors (Nelson)12.7±8.5*4.2±3.17.0±5.7*1.8±1.9
  • Values are mean±SD.

  • * p<0.05, Mann–Whitney U test.

  • Abnormal, low categories achieved on the Wisconsin Card Sorting Test; ACA, anterior cerebral artery; MCA, middle cerebral artery.