Figure 4. Conventional clinical imaging of the brain of a healthy volunteer using T1-FSE (A), T2-FSE (B), PD-FDE (C), GRE (D), T2-FLAIR (E), MP-RAGE (F), and IR-dUTE imaging with a TE of 8 µs (G) and 2.2 ms (H) as well as the corresponding echo subtraction image (I).

The ultrashort T2* components in the white matter of the centrum semiovale appear hypointense in the 1^st echo image (G) but near zero signal in the 2^nd echo image (H), and are highlighted in the subtraction image (I). The rubber phantom is only seen with UTE based techniques.