Contour editing tool for processing oct images

A method comprising:

• providing a tubular sheath that is flexible and defines a first lumen which extends from a proximal end to a distal end of the tubular sheath;
• receiving, by a processor, image data corresponding to a plurality of tomographic images acquired by an imaging catheter scanning a blood vessel;
• obtaining, by the processor, an automatically-generated lumen contour of the blood vessel from a tomographic image of the blood vessel;
• displaying, on a display, the automatically-generated lumen contour overlaid on the tomographic image of the blood vessel;
• identifying a true lumen edge of the blood vessel in the tomographic image;
• estimating, by the processor, a percentage of matching between a shape of the automatically-generated lumen contour to a shape of the true lumen edge;
• and
• receiving editing operations from a user via a touchscreen interface for editing at least part of the automatically-generated lumen contour based on the estimated percentage of matching,
• wherein, in a case where the estimated percentage of matching is equal to or greater than 80%, the editing operations include:
• adding at least one control point on at least part of the automatically-generated lumen contour, and
• dragging the at least one control point together with the at least part of the automatically-generated lumen contour so that the at least part of the automatically-generated lumen contour matches a corresponding part of the true lumen edge of the blood vessel within the tomographic image.