Abstract: An object of the present invention is to provide a method for the noninvasive imaging of a tissue (in particular, a cardiac tissue) in real time, and a device therefor. The present invention provides a method for imaging a sample that contains myocardial tissue and one or more blood vessels and/or one or more collagen-rich regions, the method comprising the steps of: (1) irradiating the sample that contains myocardial tissue and one or more blood vessels and/or one or more collagen-rich regions with an excitation light; (2) detecting Raman scattering light from the sample; and (3) analyzing the thus obtained Raman scattering light by using Raman scattering spectra that are characteristic of myocardial cells and red blood cells and/or collagen as indexes and thus imaging the sample.