Table 1.
Patient demographic data and measurement value
| Age | Sex | Type | Area | Interval (M) | Volume at first examination (mm3) | Volume at second examination (mm3) | Rate of increase (%) | Annual rate of increase (%) | Increase part | |
|---|---|---|---|---|---|---|---|---|---|---|
| Case 1 | 62 | M | Co | C2–4 | 36 | 3,654.09 | 4,092.72 | 12.00 | 4.00 | Local |
| Case 2 | 68 | F | Mi | C3–7 | 25 | 2,248.55 | 2,469.90 | 9.84 | 4.73 | Diffuse |
| Case 3 | 65 | F | Ci | C5 | 12 | 478.09 | 483.22 | 1.07 | 1.07 | Diffuse |
| Case 4 | 62 | M | Co | C2–4 | 24 | 809.81 | 828.29 | 2.28 | 1.14 | Diffuse |
| Case 5 | 69 | M | Mi | C3–6 | 24 | 1,130.69 | 1,203.90 | 6.47 | 3.24 | Diffuse |
| Case 6 | 57 | F | Mi | C3–6 | 45 | 1,908.68 | 2,171.56 | 13.77 | 3.67 | Diffuse |
| Case 7 | 73 | M | Mi | C2–7 | 24 | 4,967.98 | 5,087.29 | 2.40 | 1.20 | Intervertebral |
| Case 8 | 74 | M | Mi | C3–7 | 12 | 2,580.11 | 2,667.31 | 3.38 | 3.38 | Intervertebral |
| Case 9 | 53 | F | Co | C2–3 | 39 | 1,749.72 | 1,935.91 | 10.64 | 4.73 | Diffuse |
| Case 10 | 68 | M | S | C5–6 | 36 | 151.85 | 174.76 | 15.09 | 5.03 | Local |
| Case 11 | 62 | M | Mi | C2–6 | 12 | 1,387.09 | 1,461.49 | 5.36 | 5.36 | Intervertebral |
| Case 12 | 57 | F | Mi | C2–4 | 24 | 410.35 | 438.16 | 6.78 | 3.39 | Local |
| Case 13 | 63 | M | Mi | C2–7 | 12 | 2,510.77 | 2,512.88 | 0.08 | 0.08 | Diffuse |
| Case 14 | 67 | M | Mi | C2–7 | 12 | 3,673.29 | 3,836.25 | 4.44 | 4.44 | Local |
| Case 15 | 58 | M | Mi | C2–6 | 12 | 2,653.84 | 2,690.66 | 1.39 | 1.39 | Diffuse |
| Case 16 | 58 | M | Mi | C3–7 | 17 | 1,751.41 | 1,777.10 | 1.47 | 1.04 | Local |
| Case 17 | 58 | F | Mi | C3–7 | 18 | 431.60 | 482.05 | 11.69 | 7.79 | Local |
| Case 18 | 60 | F | Ci | C6 | 12 | 25.81 | 27.14 | 5.15 | 5.15 | Diffuse |
| Case 19 | 58 | F | Mi | C3–7 | 12 | 2,208.59 | 2,265.15 | 2.56 | 2.56 | Local |
| Case 20 | 80 | M | Mi | C4–7 | 12 | 1,901.31 | 1,960.41 | 3.11 | 3.11 | Diffuse |
| Mean | 63.6 | 22.0 | 1,831.68 | 1,928.31 | 5.95 | 3.33 |
Co continuous, S segmented, Mi mixed, Ci circumscribed