The present invention relates to computer-implemented medical method of verifying an expected deformation of an elastically deformable and actuator- adjusted medical fine-adjustment unit (1), the method comprising executing, on a processor of a computer, the steps of; - acquiring model data describing a model of the fine-adjustment unit (1), the model reflecting deformation properties of the fine-adjustment unit (1); - acquiring actuator data describing an actuator position of at least one actuator coupled to the fine-adjustment unit (1); - determining, based on the model data and the actuator data, target deformation data describing a target deformation of the fine-adjustment unit (1) caused by the at least one actuator at said actuator position; - acquiring actual deformation data describing an actual deformation of the fine- adjustment unit (1) caused by the at least one actuator at said actuator position; - determining, based on the target deformation data and the actual deformation data, verification data describing whether the target deformation corresponds to the actual deformation. The present invention further relates to a corresponding computer program causing a computer to perform such method, and a corresponding system comprising such a computer.
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