Objective To Compare the different imaging methods for non-invasive evaluation of intracranial pressure,exploring strengths and weaknesses.Methods Fifteen patients with high intracranial pressure who completed lumbar cere-brospinal fluid puncture were enrolled.Application of CT and MRI for qualitative evaluation of increased intracranial pres-sure based on the Index of transverse sinus stenosis(ITSS)and brain morphological features.Qualitative and quantitative evaluation of increased intracranial pressure based on the orbital subarachnoid space width(OSASW)around the optic nerve.Results The accuracy of the qualitative diagnosis of increased intracranial pressure based on the ITSS and brain morphological features was 100％and 93.3％,respectively.The accuracy of the qualitative diagnosis of increased intracra-nial pressure based on OSASW was 86.7％.There was no significant difference between the quantitatively calculated in-tracranial pressure value of(210.83±28.04)mmH2O based on OSASW and the intracranial pressure value measured by lumbar puncture(222.33±31.67)mmH2O.However,compared with lumbar puncture,intracranial pressure values based on OSASW measurements were reduced by a mean of(11.5±3.63)mmH2O.Conclusion ITSS is the most accurate noninvasive imaging method to diagnose increased intracranial pressure qualitatively.Then applying OSASW to measure in-tracranial pressure,and add(11.5±3.63)mmH2O to this value as a reference value for quantitative evaluation of intracra-nial pressure.
Intracranial pressureIndex of transverse sinus stenosisOrbital subarachnoid space widthMorphologi-cal features
NETL
NSTL
万方数据
