Copyright
©The Author(s) 2018.
World J Radiol. Jul 28, 2018; 10(7): 65-77
Published online Jul 28, 2018. doi: 10.4329/wjr.v10.i7.65
Published online Jul 28, 2018. doi: 10.4329/wjr.v10.i7.65
Table 1 Magnetic resonance imaging examination parameters before 2017
Parameter | T1 (SPGR) | T2 (SE) | FLAIR | DWI | Ax SPGR + C | Sag T1 SE + C | Ax T1 FS + C |
TR (repetition time) (ms) | 6.36 | 5700 | 8002 | 8000 | 6.36 | 440 | 620 |
TE (echo time) (ms) | 2.23 | 134 | 80.9 | 104 | 2.23 | 12 | 20 |
Field of view (mm) | 260 | 250 | 220 | 250 | 260 | 250 | 250 |
Slice thickness (mm) | 4 | 5 | 5.5 | 5 | 4 | 5.5 | 5.5 |
Slice gap (mm) | 2 | 6.5 | 6.5 | 6.5 | 2 | 6.5 | 7 |
NEX (No. of excitations) | 1 | 1.5 | 1 | 2 | 1 | 1 | 1 |
TI (time inversion) ms | 450 | 2000 | 450 | ||||
Machine | 1.5 T GE Signa Excite HD (8 channel head coil) |
Table 2 Magnetic resonance imaging examination parameters after 2017
Parameter | T1 (BRAVO) | T2 (SE) | FLAIR FS | DWI | T1 (BRAVO) +C | Cor T1 (SE) + C | Ax T1 FS + C |
TR (repetition time) (ms) | 9.25 | 6282 | 10000 | 6992 | 9.25 | 3509 | 2744 |
TE (echo time) (ms) | 3.58 | 124 | 91.7 | 84.4 | 3.58 | 17.8 | 17.5 |
Field of view (mm) | 256 | 220 | 240 | 270 | 256 | 240 | 256 |
Slice thickness (mm) | 1 | 5.5 | 5.5 | 5 | 1 | 5.5 | 5.5 |
Slice gap (mm) | 0 | 7 | 7 | 5.5 | 0 | 7 | 7 |
NEX (No. of excitations) | 1 | 2 | 1 | 2 | 1 | 1 | 1 |
TI (time inversion) (ms) | 420 | 2688 | 420 | 1146 | 922 | ||
Machine | 1.5 T GE Signa Explorer SV 25 (16 channel neurovascular-head coil) |
Table 3 Demographic and clinical characteristics of patients with pineal cyst
Demographic and clinical characteristics | n (%) |
No. of patients | 56 |
Pineal cyst prevalence | 0.58% |
Median age (mean ± SD, range) (yr) | 31.26 ± 12.73 (5–61) |
Sex | |
Female | 44 (78.57) |
Male | 12 (21.43) |
MRI request reasons | |
Headache | 42 (75) |
Epilepsy | 7 (12.50) |
Cerebrovascular disease | 4 (7.14) |
Vertigo | 1 (1.78) |
Encephalitis | 1 (1.78) |
Hand tremor | 1 (1.78) |
Table 4 Magnetic resonance imaging features of pineal cysts
MRI features of pineal cysts | n (%) |
Cyst type | |
Typical | 35 (62.50) |
Atypical | 21 (37.50) |
Two or more septation-loculation | 18 (32.14) |
Contour lobularity | 11 (19.64) |
Cyst contrast-enhancement | 21 |
Peripheral rim enhancement | 15 (71.42) |
Peripheral rim and septal enhancement | 3 (14.28) |
Partial rim enhancement | 2 (9.52) |
Dense heterogeneous enhancement | 1 (4.76) |
Cyst intensity relative to CSF on T2 weighted images | |
Isointense | 55 (98.21) |
Hyperintense | 1 (1.79) |
Cyst intensity relative to CSF on T1 weighted images | |
Isointense | 53 (94.64) |
Hyperintense | 3 (5.36) |
Cyst intensity relative to CSF on FLAIR images | |
Isointense | 6 (10.71) |
Hyperintense | 50 (89.29) |
Diffusion restriction | 0 |
Table 5 lInitial dimensions and volumes and subsequent changes of pineal cysts
Pineal cyst dimensions and volume | Value (range) |
Minimal-maximal linear dimension | 5.0-19.70 mm |
All plane mean dimension (AP, ML, CC) | 10.07 ± 2.93 mm |
Cyst volume (mean ± SD, range) | 0.62 ± 0.54 (0.11-3.35) cm³ |
Cyst dimension (mean ± SD, range) (mm) | |
Anteroposterior (AP) | 11.18 ± 3.03 (6.50-19.00) |
Mediolateral (ML) | 10.41 ± 2.72 (5.80-19.70) |
Craniocaudal (CC) | 8.63 ± 2.47 (5.0-18.30) |
Changes in dimensions during follow-up period (mean ± SD, range) (mm) | |
Anteroposterior (AP) | -0.08 ± 0.53 (-1.60-0.7) |
Mediolateral (ML) | -0.22 ± 0.87 (-3-0.8) |
Craniocaudal (CC) | 0.16 ± 0.56 (-0.70-1.40) |
- Citation: Gokce E, Beyhan M. Evaluation of pineal cysts with magnetic resonance imaging. World J Radiol 2018; 10(7): 65-77
- URL: https://www.wjgnet.com/1949-8470/full/v10/i7/65.htm
- DOI: https://dx.doi.org/10.4329/wjr.v10.i7.65