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. 2012 Aug;85(1016):e436–e441. doi: 10.1259/bjr/25916692

Table 1. Quantitative washout results of bony compartments in hip, knee and spine.

Washout parameters Hip
Knee
Spine
FH (n=18) PFD (n=18) DFD (n=11) DFE (n=12) PTE (n=11) PTD (n=7) Vertebra L3 (n=10)
Mean MaxOut −17.5±12.7% 50.9±18.8%a 19.4±7.9% 16.9±8.5% 20.0±8.6% 9.5±7.5%b 36.5±8.7%
Mean Rout −5.3±4.8% 14.1±5.0%a 5.8±2.1% 5.1±2.5% 5.8±2.3% 2.1±2.2%b 11.6±2.7%
Mean Tout 3.2±0.5 3.6±0.2a 3.3±0.5 3.4±0.5 3.3±0.5 3.2±0.6 3.2±0.1

FH, femoral head; PFD, proximal femoral diaphysis; DFD, distal femoral diaphysis; DFE, distal femoral epiphysis; PTE, proximal tibial epiphysis; PTD, proximal tibial diaphysis; MaxOut, maximum washout; Rout, washout rate; Tout, time of washout (min); n, number of joints used for analysis.

Negative values of FH indicate MR signal increase. Positive values of PFD, DFD, DFE, PTE, PTD and vertebra L3 indicate MR signal decrease.

ap<0.001.

bp<0.05.