According to an embodiment, a system for acquiring ECAP recordings at a later session for a cochlear implant patient is disclosed. The system includes a receiving unit configured to receive, corresponding to an electrode, a stored prior individual value from a plurality of stored 5 prior individual values of ECAP/ an ECAP prior growth function, the plurality of stored prior individual values or the ECAP prior growth function being obtained at a previous session. Furthermore, a processing unit configured to process the received prior individual value/ ECAP growth function to determine a stimulus signal value corresponding to the received individual value/ a selected point on the ECAP prior growth function, instruct a signal delivery unit to 10 provide to the electrode a first stimulus signal comprising a first level that is same or above said stimulus signal value, and determine a resulting ECAP generated in response to said first stimulus signal. (Figure 3 to be published) Receive stored ECAP growth 2 function for electrode i Determine corresponding stimulus signal threshold 25 value 29 Chose a first stimulus level Receive the corresponding above the stimulus signal ECAP (= ECAP1) from the 26 threshold value stored ECAP growth function Provide the chosen first 27 stimulus signal to electrode i Determine the resulting evoked compound action potential Compare ECAP2 with ECAP1 No |ECAP2|E|ECAP1 ±AECAP1|? Go to A Yes ECAP for electrode i considered 3 2< stable Proceed to next electrode until all electrodes have been 33 checked Fig. 4A
Method and System for Rapid Acquisition of Evoked Compound Action Potential Recordings