Systems and methods for error checking in radiotherapy treatment replanning

A method implemented on a computing device having at least one processor and at least one storage device for adaptive treatment planning, the method comprising:

• obtaining a planning image volume of a subject, a treatment image volume of the subject, and a first treatment plan related to the planning image volume of the subject, each of the planning image volume and the treatment image volume including a region of interest (ROI) of the subject;
• registering the planning image volume and the treatment image volume with respect to a common coordinate system;
• determining a first contour of the ROI in the registered planning image volume and a second contour of the ROI in the registered treatment image volume;
• obtaining an evaluation result by evaluating, based on the first contour and the second contour, whether an error exists in at least one of the registration or the contour determination;
• and
• determining, based on the evaluation result, a second treatment plan with respect to the treatment image volume.

A non-transitory computer readable medium, comprising a set of instructions for adaptive treatment planning, wherein when executed by at least one processor, the set of instructions direct the at least one processor to effectuate a method, the method comprising:

• obtaining a planning image volume of a subject, a treatment image volume of the subject, and a first treatment plan related to the planning image volume of the subject, each of the planning image volume and the treatment image volume including a region of interest (ROI) of the subject;
• registering the planning image volume and the treatment image volume with respect to a common coordinate system;
• determining a first contour of the ROI in the registered planning image volume and a second contour of the ROI in the registered treatment image volume;
• obtaining an evaluation result by evaluating, based on the first contour and the second contour, whether an error exists in at least one of the registration or the contour determination;
• and
• determining, based on the evaluation result, a second treatment plan with respect to the treatment image volume.