Table 1 MRI imaging protocols for screening, HIFU therapy and 3-month follow-up
Examination | Sequence type | Purpose | Imaging plane | TR (ms) | TE (ms) | FA (∘) | Section thickness (mm) | FOV (mm) |
|---|---|---|---|---|---|---|---|---|
Screening | T2W TSE | Uterine fibroid | Sagittal | 4844 | 95 | 90 | 3 | 240x240 |
T2W TSE | Uterine fibroid | Axial | 3845 | 80 | 90 | 4 | 300x300 | |
T1W | Uterine fibroid | Sagittal | 5.2 | 2.6 | 7 | 3 | 345x250 | |
DWI | Uterine fibroid | Axial | 3733 | 83 | 90 | 5 | 375x290 | |
CE-T1W | Uterine fibroid | Sagittal | 5.2 | 2.6 | 7 | 3 | 345x250 | |
Treatment | FFE | Air bubble assessment | Coronal | 15 | 12 | 10 | 2 | 280x280 |
T2W TSE | Treatment planning | Sagittal | 1550 | 150 | 90 | 1.6 | 250x250 | |
FFE-EPI | Temperature monitoring | Coronal/Sagittal | 37 | 19.5 | 19 | 7 | 400x400 | |
CE-T1W | Non-perfused volume | Coronal | 5.2 | 2.6 | 7 | 3 | 345x250 | |
3-month follow-up | T2W TSE | Uterine fibroid volume | Sagittal | 4844 | 95 | 90 | 3 | 240x240 |
T2W TSE | Uterine fibroid volume | Axial | 3845 | 80 | 90 | 4 | 300x300 | |
CE-T1W | Non-perfused volume | Sagittal | 5.2 | 2.6 | 7 | 3 | 345x250 |