Research Article

Force-Sensor-Based Estimation of Needle Tip Deflection in Brachytherapy

Figure 8

Sample plots for forces and moments at the needle base and tip deflection during insertion into tissue 1 with a velocity of 10 mm/s.
263153.fig.008a
(a) Forces and moments acting at the needle base  
263153.fig.008b
(b) Measured (unfiltered) and estimated needle tip deflection