神经系统常见病的影像诊断 Imaging of Common CNS DiseasesT1-Weighted Imagesl Images whose design (timing of radio pulses and data readout) is to produce contrast between gray matter, white matter, and CSFThree axial (transaxial or horizontal) slices:Spatial resolution is about 1 mm3Acquisition time for whole head is 5-10 minutesZooming Inl Can follow GM cortex fairly well Can measure thickness of cortex and try to quantify vs age and/or disease and/or genesl Bright spots and lines: arterial inflow artifact Le
