Structure Detail
Glnd_Lacrimal_L
Lateralized Structure LEFT
0.260
Avg Dice
0.260
Median Dice
6.35
Avg HD95 (mm)
4.07
Avg MDC (mm)
Delineation Information
- Modality
- MR
- Guideline
- Taken from Eekers DBP, Di Perri D, Roelofs E, Postma A, Dijkstra J, Ajithkumar T, et al. Update of the EPTN atlas for CT- and MR-based contouring in Neuro-Oncology. Radiother Oncol 2021;160:259–65. https://doi.org/10.1016/j.radonc.2021.05.013.
- Method
- Manual. The lacrimal gland is an almond shaped gland (18 mm craniocaudally, 15 mm axial length and 5 mm axial width) located in the orbit superior-lateral to the eye, superior to the lateral rectus muscle and lateral to the superior rectus muscle. It can be delineated on CT using soft brain 120/40 or soft tissue 350/50 WW/WL settings.
Anatomical Boundaries
- Cranial
- Superior most slice where the lacrimal gland is visible
- Caudal
- Inferior most slice where the lacrimal gland is visible. Superior to the lateral rectus muscle.
- Medial
- Superior rectus muscle
- Lateral
- Orbital bone
- Ventral
- Outer contour of the lacrimal gland
Additional Metrics
| Average MSD | — |
| Median MSD | — |
| Median HD95 | 5.81 |
| Median MDC | 4.16 |
| Avg Undercontouring MDC | 2.40 |
| Avg Overcontouring MDC | 1.67 |
| Average Volume | 0.23 |