In an embodiment of an image displaying apparatus a cross sectional image storage is configured to store a cross sectional image group including multiple cross sectional images each of which is associated with time and expresses a cross section intersecting at least one blood vessel of a living body. A phase image storage is configured to store a phase image group including multiple phase images each of which is associated with time and expresses chronological variation of phase difference at a cross section intersecting at least one blood vessel of the living body. A blood flow information storage is configured to store a blood flow information group including multiple blood flow information each of which is related to blood flow in a blood vessel of the living body and is associated with time. A display is configured to synchronously and superposedly display a cross sectional image included in the cross sectional image group and a phase image included in the phase image group using time associated with the cross sectional image and the phase image and display a blood flow image that expresses multiple blood flow information, from among blood flow information included in the blood flow information group, corresponding to time within a period including time associated with the cross sectional image and the phase image that are being superposedly displayed.
