By processing all of the
photoacoustic imaging data with computer programs, scientists obtain a 2 - D en - face
photoacoustic image
called a depth maximum amplitude projection (DMAP) image, which shows the optical absorption distribution or
photoacoustic contrast of the sample.
Through the development of a technique
called photoacoustic tomography, Wang was able to conquer this limit and advance the
imaging depth by nearly two orders of magnitude, from one millimeter to several centimeters, an improvement that could enable doctors to acquire high - resolution images through a patient's skin using light.