From: Calibration of an orientation sensor for freehand 3D ultrasound and its use in a hybrid acquisition system
Roll
Yaw
Tilt
Tilt-yaw rotation
-0.0593 ± 0.3058
-0.4633 ± 0.8887
+0.0641 ± 0.1658
Roll-yaw rotation
+0.0371 ± 0.3117
-2.1223 ± 1.8843
-0.2040 ± 0.3092