The present invention relates to a system and method for diagnosing stroke-related lesions, and more particularly, to a system and method for diagnosing a stroke lesion based on a medical image for diagnosing and prescribing strokes. In order to achieve the above object, an image-based stroke lesion diagnosis system according to an embodiment of the present invention may include a diffusion-weighted image (DWI) of a body part including lesions of a subject from an image diagnosis apparatus (modality) A receiver receiving the perfusion-weighted image (PWI) and a perfusion-weighted image (PWI), a matching unit for registering the diffusion-weighted image and the perfusion-weighted image, a display option for the diffusion- A user menu providing means for providing a user menu that can be determined, an input analyzing portion for interpreting the display option in response to a user input via the user menu, And a display control unit for displaying at least one of the emphasized images on the screen.
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