Abstract: An image diagnostic support device is configured to acquire a tomographic image including a lung region of an object to be examined and is provided with image display to display the tomographic image. The device is also configured to set up a measurement range, extract the chest wall from the image in the set measurement range, extract a thickened portion incidental to the chest wall in the measurement range, and measure the thickness of a thickened portion at each position in the measurement range.

Abstract: An image diagnostic support device, which is connected with image acquisition means to acquire a tomographic image including a lung region of an object to be examined and is provided with image display means to display the tomographic image acquired by the image acquisition means as an image, is comprised of measurement range setting means that sets up a measurement range to extract the chest wall from the image, chest wall extracting means that extracts the chest wall from the image in the set measurement range, thickened portion extracting means that extracts a thickened portion incidental to the chest wall in the measurement range, and thickened portion measuring means that measures the thickness of a thickened portion at each position in the measurement range.