Using the provided axial brain images (TE = 20 ms, 30 ms, 60…
Using the provided axial brain images (TE = 20 ms, 30 ms, 60 ms, 90 ms; TR = 250 ms for T1-weighting, TR = 1500 ms for T2-weighting) and answer the following questions: Explain how increasing TE alters the relative signal intensity of gray matter, white matter, and CSF. (3 marks) Analyse why the crossover point of no contrast between tissues shifts to shorter TE values when TR is increased. (3 marks) Evaluate which TE/TR combination best highlights pathology such as edema, and justify your choice. (2 marks) Test 2 1.png