Research should continue to focus o

Research should continue to focus on developing a reliablemethod to identify the target, reduce lasting side effects, andenhance durability. For instance, during the course of theMRgFUS thalamotomy, different MR sequences can provideinformation about lesion volume and diameter changes overtime (Figure 8). Only T2-weighted sequences can show thelesion shortly after it is created; however, the lesion maynot be apparent on T2-weighted images obtained up to 180days after the procedure. Susceptibility-weighted images, onthe other hand, can demonstrate the lesion up to 180 daysafter treatment (42). Fast gray matter acquisition T1 inversionrecovery imaging can be used for surgical planning, as thismethod offers superior visualization of the target and is especiallyeffective in differentiating between the internal capsule andthalamus (Figure 9). Furthermore, T1-weighted 7T images candepict lesion shrinkage and shifting up to 65 days after treatment(Figure 10).