Transverse relaxation time (m>37%), T2
Physical foundations
Radiofrequency (RF) pulse 射频脉冲 RF sequence 射频序列 Repetition time (TR) 重复时间 Echo time (TE) 回波时间 T1-weighted imaging T1加权像 T2-weighted imagingT2加权像 PD-weighted imaging质子加权像
Fundamentals of X-Ray Imaging X线诊断的基础
X-ray characteristics Densities and thickness of human body
High density Medium density Low density
Methods of Examination 检查方法
Protection from X-Ray X线防护
Should not be overlooked Unnecessary fear should not be
bourn in mind
II. X-Ray Computed Tomography CT
Hounsfield 1969 Clinical application 1972 Nobel prize 1979
X-Ray Diagnosis and Analysis X线诊断和分析
Thorough observation Exact analysis
Site and distribution, number, size, shape, density, outline, etc. The essence of lesions diseases / signs Correlated with the clinical data