Precision of periarticular bone mineral density measurements at selected regions of interest (ROIs) in the knee joints of patients with arthritis
| Region of interest | PA femur (%) | PA tibia (%) | Lateral ROIs (%) |
| R1 | 2.49 | 4.52 | 6.89 |
| R2 | 2.37 | 3.99 | 3.67 |
| R3 | 2.31 | 3.84 | 6.07 |
| R4 | 2.36 | 3.84 | 2.67 |
| R5 | 2.44 | 3.57 | 2.76 |
| R6 | 2.53 | 3.44 | 0.84 |
| R7 | 2.64 | 3.44 |
4-150 All results expressed as percentage coefficient of variation.