Information About Radiology
Category Tissue Property Term Proton Density (PD) Definition of Proton Density (PD) Relative Number Of Hydrogen Protons Per Unit Volume Contributing To Signal Notes About Proton Density (PD) PD Weighted Images Emphasize Proton Concentration
Category Tissue Property Term T1 Relaxation (Longitudinal) Definition of T1 Relaxation (Longitudinal) Time Constant For Recovery Of Longitudinal Magnetization After Excitation Notes About T1 Relaxation (Longitudinal) Shorter T1 Appears Brighter On T1 Weighted Images
Category Tissue Property Term Magnetic Susceptibility Definition of Magnetic Susceptibility Degree To Which Tissue Becomes Magnetized In External Field Causing Local Field Distortions Notes About Magnetic Susceptibility Important For Iron, Hemorrhage, And Calcification Imaging