The invention relates to a method for a medical image analysis, comprising the steps: Performing a first CT scan of a region of interest of a subject resulting in a first image with a first resolution; Applying a medical image processing method to the first image resulting in first values representing a first analysis of the region of interest of the subject; Determining a range of interest of the subject based on the first values; Performing a second CT scan of the range of interest of the subject resulting in a second image with a second resolution, wherein the second resolution is higher than the first resolution; and Applying the medical imaging processing method to the second image resulting in second values representing a second analysis of the range of interest of the subject. Further, the invention relates to a system for medical image analysis.