Table 4:

Blood pressure and PRES imaging pattern

Imaging PatternBlood Pressure at Toxicity*
Normal (No. pts)Slight Elevation (No. pts)Severe Hypertension (No. pts)
Holohemispheric13414
Superior frontal sulcus13321
Dominant parietal/occipital9417
Partial expression349
Asymmetric expression710
Partial and asymmetric expression23
Total451774
  • Note:

  • * Normal indicates a mean arterial pressure [MAP] ≤ 105 mm Hg; slight elevation, MAP 106–115 mm Hg; severe hypertension, MAP ≥ 116 mm Hg; PRES indicates posterior reversible encephalopathy syndrome; No. pts, number of patients.