MRI-based hippocampal volumetrics: Data acquisition, normal ranges, and optimal protocol

摘要: The process of producing magnetic resonance (MR) volume measurements can be divided into considerations acquisition and postprocessing the MR data. With careful attention to both these, precise reproducible achieved. A statistical description hippocampal in normal volunteers must available for comparison if volumetrics are employed either clinical or research purposes. wide range "normal" is present studies young adults that have been reported date. This variability most probably due interinstitutional differences boundary criteria, software counting pixels a defined region interest (ROI). Because numeric output from measurement procedure highly technique-dependent, should determined calibrated at each institution wishing use these techniques.