Quantitative assessment of the CRT-induced changes in the tumour T2-weighted signal intensity provides high diagnostic performance for selection of complete responders.

This work shows that intuitive user interfaces can improve the efficiency of endoscope tip steering.

In current flexible endoscopy the physician faces problems in manipulating the endoscope. A lot of experience is required to master the procedure. This paper describes the design of an add-on robotic module that improves the user interface of traditional endoscopes and allows a single physician to operate it easily. We identified critical user aspects of traditional endoscopes that need to be copied in a robotic setup. In our design the physician uses a remote control that is connected to a light drive system. It allows manipulation of the robotic endoscope in space. We conducted an experiment to judge the usability of our system. Results indicate that robotic steering, using a position-controlled touchpad or a ratecontrolled joystick increases efficiency and satisfaction.

Colonoscopy with RS-ALC is technically feasible and appears to be easier and more intuitive than conventional steering for endoscopy-naive novices.