Article Figures & Data
Figures
- Fig 1.
ADC map (A) with region of interest drawn (B), T2-weighted image (C) with region of interest drawn (D), and postcontrast T1-weighted image (E) with region of interest (F) are seen in this papillary tumor of the pineal gland. The standard deviations were divided by the means to obtain coefficients of variation.
- Fig 2.
Germinoma shows ADC value of 1500.68 × 10−6 mm2/s.
- Fig 3.
Pineoblastoma shows ADC value of 426.68 × 10−6 mm2/s.
Tables
Tumors Age Range (years) Mean Age (years) ± SD (years) T1 Value Range Mean T1 ± SD T2 Value Range Mean T2 ± SD Pineocytoma (n = 3) 39.6–64.9 48.7 ± 14.1 235.89–426.27 305.58 ± 104.94 616.11–995.52 755.52 ± 208.75 PPTID (n = 2) 45.6–47.2 46.4 ± 1.1 196.13–230.19 213.16 ± 24.08 321.74–593.47 457.61 ± 192.14 PTPR (n = 2) 1.5–31.6 16.6 ± 21.3 187.92–286.24 237.08 ± 69.52 437.58–804.67 621.13 ± 259.57 Pineoblastoma (n = 6) 3.3–45.8 18.3 ± 15.0 197.90–357.34 282.44 ± 57.65 232.2–478.97 364.33 ± 98.34 Germinoma (n = 7) 9.3–20.6 13.7 ± 3.9 191.00–433.79 278.6 ± 90.43 418.49–1297.99 718.21 ± 294.14 Diagnosis Size-AP X transverse X SI (cm) Percent Cystic Hemorrhagic? Calcified? (modality used to assess) Pineoblastoma 4.6 × 5.9 × 6.1 5.36 No No, CT Pineoblastoma 2.5 × 1.8 × 2.6 0.00 No No, CT Pineoblastoma 2.3 × 2.0 × 1.6 0.00 No Yes, diffusely, CT Pineoblastoma 1.7 × 1.9 × 1.8 0.00 No No, CT Pineoblastoma 2.5 × 2.1 × 2.6 40.38 No No, CT Pineoblastoma 3.3 × 2.6 × 4.7 0.00 No No, CT Pineocytoma 2.1 × 2.1 × 1.8 48.20 No No, MR Pineocytoma 1.9 × 1.8 × 1.3 0.00 No No, CT Pineocytoma 1.7 × 2.3 × 1.3 37.21 No No, CT Intermediate pineal parenchymal tumor 1.6 × 1.7 × 1.6 0.00 No No, CT Intermediate pineal parenchymal tumor 3.8 × 2.6 × 3.8 0.00 No No, MR Papillary tumor of the pineal region 2.1 × 2.0 × 2.9 26.53 No No, CT Papillary tumor of the pineal region 2.2 × 2.1 × 1.9 0.00 No No, MR Germinoma 3.1 × 3.7 × 3.6 0.00 No Yes, punctate, CT Germinoma 2.1 × 2.6 × 2.1 23.64 No No, CT Germinoma 2.9 × 3.1 × 1.9 40.29 No Yes, punctate, CT Germinoma 2.8 × 3.8 × 3.0 0.00 No No, CT Germinoma 2.1 × 2.3 × 2.5 0.00 No No, CT Germinoma 2.2 × 1.5 × 1.6 15.38 No No, MR Germinoma 0.8 × 0.8 × 0.7 0.00 No No, MR -
Note:—AP indicates anteroposterior; SI, signal intensity.
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- Table 3:
Coefficient of variation (CV) of T1 and T2 signal intensity values and ADC values of the pineal region tumors
Pineal Parenchymal Tumors (n = 13) Germinoma (n = 6) P Percentage of CV of T1 signal value ± SD 11.14 ± 4.57 11.71 ± 5.24 0.814 Percentage of CV of T2 signal value ± SD 26.71 ± 15.17 23.19 ± 7.41 0.496 Percentage of CV of ADC signal value ± SD 28.79 ± 15.63 23.64 ± 15.03 0.51 Tumors Range ADC × 10−6 mm2/s Mean ADC × 10−6 mm2/s ± SD × 10−6 mm2/s Pineocytoma (n = 3) 1123.63–1229.56 1180.34 ± 53.36 PPTID (n = 2) 904.14–1067.35 985.75 ± 115.41 PTPR (n = 2) 993.25–1296.42 1144.83 ± 214.37 Pineoblastoma (n = 6) 375.63–1027.49 614.06 ± 239.65 Germinoma (n = 6)* 1168.49–2637.00 1590.69 ± 532.96 -
↵* One germinoma was not able to be assessed.
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