1. A system for collecting data elements relating to events in an interventional procedure that penetrates a body, the system comprising: a receiver configured to receive the data elements from a plurality of input systems configured to penetrate the body surgically with electromagnetic radiation in an electrophysiology interventional procedure or to penetrate the body surgically with the electromagnetic radiation and through a natural entry to reach at least one body cavity wherein the body cavity includes at least one of lungs, womb, bladder, intestines and stomach, wherein the natural entry is selected from one of the anus, the nose and the mouth; and wherein the electromagnetic radiation is selected from X-rays, lasers, gamma-rays and ultraviolet light, each data element corresponding to an event inside the penetrated body; a clock for registering a time of receipt of each of the data elements, a memory configured to store the data element and the corresponding time of receipt; and a display configured to display representations of the data elements sequentially along a timeline in accordance with the respective times of receipt, wherein the representations are icons illustrative of an event type of the events.