A computer-implemented method and a system for browsing medical thumbnail objects to be displayed on a window on a monitor before loading the medical objects. It is possible to load only those images which indeed are relevant for a user and thus to save transmission time. A display pattern for displaying the thumbnail objects is user-selectable and includes a number of objects to be displayed and advantageously the arrangement or pattern remains constant, even in case a window size has been modified. Using a fixed but user-selectable layout pattern supports selection of relevant images during browsing. The window size is also user-selectable. After having determined the display pattern and the window size the size of the thumbnail objects is calculated automatically according to the determined display pattern and the determined window size. The thumbnail objects are displayed in the calculated object size, which favorably simplifies browsing of complex medical images.