Ablation planning with lesion coverage feedback

A medical system for tumour targeting ablation, comprising:

• an image acquisition unit;
• a planning device according to one of the preceding claims;
• and
• an ablation unit;
• wherein the image acquisition unit is configured to provide the 3D data set from which the tumour is segmented;
• and
• wherein the planning device is configured to provide an ablation path;
• and
• wherein the ablation unit is configured to apply the ablation procedure to the tumour.

A method for tumour targeting ablation planning, comprising the following steps:

• a) providing at least one segmented tumour in a 3D data set to be treated in an ablation procedure;
• b) generating and displaying a contour of the segmented tumour;
• c) providing and displaying a predetermined ablation profile to overlap with at least a part of the at least one segmented tumour;
• d) identifying an overlapping region;
• e) applying a predetermined safety factor to at least a part of the overlapping region to generate a modified overlapping region;
• wherein parts of the overlapping region arranged outside the modified overlapping region are determined as critical overlapping portions;
• and
• f) displaying the critical overlapping portions in relation with the contour and the ablation profile as virtual planning ablation result.