Search results for "Postmortem brain"

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An improved anatomical MRI technique with suppression of fixative fluid artifacts for the investigation of human postmortem brain phantoms

2016

PURPOSE Phantoms are often used to assess MR system stability in multicenter studies. Postmortem brain phantoms best replicate human brain anatomy, allowing for a combined assessment of the MR system and software chain for data analysis. However, a wash-out of fixative fluid affecting T1 values and thus T1-weighted sequences such as magnetization-prepared 180 degrees radiofrequency pulses and rapid gradient-echo (MP-RAGE) has been reported for brain phantoms, hampering their immediate use. The purpose of this study was the creation of anatomical data that provide the characteristics of conventional data while avoiding this artifact. THEORY AND METHODS Two brain phantoms were scanned at seve…

Pathologymedicine.medical_specialtymedicine.diagnostic_testPostmortem brainComputer scienceSystem stabilityMagnetic resonance imagingHuman brainequipment and suppliesSynthetic data030218 nuclear medicine & medical imaging03 medical and health sciences0302 clinical medicinemedicine.anatomical_structuremedicineRadiology Nuclear Medicine and imagingProton density030217 neurology & neurosurgeryFixativeBiomedical engineeringFixation (histology)Magnetic Resonance in Medicine

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