Compute Maximum Spinal Cord Compression (MSCC)

Calculates MSCC using the formula: $$MSCC = (1 - d_i / ((d_a + d_b) / 2)) \times 100$$

Usage

compute_mscc(di, da, db)

Arguments

di

Numeric. Sagittal AP diameter at injury level (mm).

da

Numeric. Sagittal AP diameter one level above (mm).

db

Numeric. Sagittal AP diameter one level below (mm).

Value

Numeric. MSCC percentage. NA if any input is NA or if the reference diameter is <= 0.

Examples

compute_mscc(di = 5.2, da = 8.1, db = 8.5)
#> [1] 37.3494
compute_mscc(di = 0, da = 8, db = 8) # 100% compression
#> [1] 100