Table 2:

Comparative performance of the drill systems in various lesion classificationsa

Diagnostic YieldCrush ArtifactsRadiation Dose (mGy × cm2)Scanning Time (min)
Lytic lesions
 Manual83.4 (201/241)5 (12/241)84542
 Battery-powered89.0 (161/181)7.7 (14/181)65735
 P value.069.168.001b.001b
Sclerotic lesions
 Manual76.4 (42/55)7.3 (4/55)106144
 Battery-powered89.1 (49/55)7.3 (4/55)80437
 P value.0641.028b.012b
Infectious lesions
 Manual50.0 (9/18)11.1 (2/18)111346
 Battery-powered51.4 (18/35)0 (0/35)81139
 P value.576.111.155.128
All lesions
 Manual80.3 (252/314)5.7 (18/314)90043
 Battery-powered84.1 (228/271)6.6 (18/271)70436
 P value.538.387.001b.001b

  • ↵a Percentage followed by the number of cases/total number of cases in parentheses for diagnostic yield and crush artifacts. Mean values are listed for radiation dose and scanning time.

  • ↵b Significant P value (P < .05).