and motion monitoring for 4D treatment planning and delivery M Riboldi 1 , C Gianoli 1 , AE Torshabi 2 , A Pella 1 , G Baroni 1,2 1) Bioengineering Department, Politecnico di Milano 2) Bioengineering Unit [...] Siemens AG Gating and Residual Motion Studies at HIT P. Steidl 1 , D. Richter 1 , A. Gemmel 2 , T. Haberer 3 , M. Durante 1,4 , and C.Bert 1 1) GSI, Darmstadt 2) SIEMENS Healthcare, Erlangen 3) HIT, Heidelberg