3- and 1.5-T Endorectal Coil MR Imaging Protocols
| Sequence | Anatomic coverage | Imaging plane | Field of view (cm) | Repetition time/echo time (ms) | Slice thickness/gap or overlap (mm) | Matrix/no. of excitations | Flip angle (º) | b values (ms/mm2) |
| 3-T | ||||||||
| Precontrast imaging | ||||||||
| T1WI FSE | Entire pelvis | Axial | 40 × 32–42 × 42 | 665–775/8.1 | 6/1 sp | 320 × 192–224/1–2 | 90 | |
| DWI spin-echo EPI | Entire pelvis | Axial | 42 × 32–42 × 42 | 4,000/48–55.3 | 7/1 sp | 128 × 192/6 | 90 | 0, 600 |
| T2WI FRFSE | Prostatectomy bed | Axial, coronal, sagittal | 16 × 16–18 × 18 | 5,500–7,600/98–109 | 2.5/0.5 sp | 320–352 × 256/2–3 | 90 | |
| DWI spin-echo EPI | Prostatectomy bed | Axial | 22 × 22 | 4,000/64–66 | 5/1 sp | 128–192 × 192/6 | 90 | 0, 600, 1,000 |
| Dynamic gadolinium contrast-enhanced imaging | ||||||||
| LAVA 3D FSPGR | Prostatectomy bed | Axial | 18 × 18 | 5.2–5.3/2.6 | 2.6/50 % overlap | 320 × 192/0.71–0.73 | 12 | |
| Post–gadolinium contrast-enhanced imaging | ||||||||
| LAVA Flex 3D FSPGR | Entire pelvis | Axial | 38 × 30 | 4.1–4.2/1.8–1.9 | 4–5/50 % overlap | 320 × 224/0.69–070 | 12 | |
| 1.5-T | ||||||||
| Precontrast imaging | ||||||||
| T1WI FSE | Entire pelvis | Axial | 36 × 36 | 533–600/8.4–8.7 | 6/1 sp | 320 × 256/2 | 90 | |
| DWI spin echo EPI | Entire pelvis | Axial | 35 × 35–40 × 40 | 4,000/45–48 | 8/2 sp | 128 × 128/2 | 0, 600 | |
| T2WI FRFSE | Prostatectomy bed | Axial, coronal, sagittal | 14 × 14–15 × 15 | 3,166–5,419/81–112 | 3/0 sp | 256 × 256/2–3 | 90 | |
| DWI single-shot EPI | Prostatectomy bed | Axial | 20 × 20–22 × 22 | 2,650–5,000/81–82 | 5/0 sp | 128 × 128/2 | 0, 600, 1,000 | |
| Dynamic contrast-enhanced imaging | ||||||||
| LAVA 3D fast gradient echo | Prostatectomy bed | Axial | 14 × 14–15 × 15 | 5.9/2.7-10.1/2.5 | 3/50 % overlap | 256 × 192/0.69–1.0 | 15 | |
| Post–contrast-enhanced imaging | ||||||||
| LAVA 3D fast gradient echo | Entire pelvis | Axial | 36 × 32.4–42 × 42 | 3.8–4.1/1.8 | 4–5/50 % overlap | 320 × 224/0.7 | 15 |
T1WI = T1-weighted imaging; FSE = fast spin echo; FRFSE = fast recovery fast sin echo; sp = interspace; DWI = diffusion-weighted imaging; EPI = echo planar imaging; T2WI = T2-weighted imaging; LAVA = liver acquisition with volume acceleration; LAVA Flex = LAVA with 2-point Dixon reconstruction; FSPGR = fast spoiled gradient echo.