'Stable' Sharon to undergo new brain scan JERUSALEM (AFP) - Ariel Sharon is to undergo another brain scan, medics treating the Israeli leader said while also stressing that it could be several days before he regains consciousness. A statement from Jerusalem's Hadassah hospital said there had been no change in the Israeli leader's condition, which remained "serious but stable". "In accordance with the treatment programme, he will undergo a CT (computed tomography) scan this evening in order to see a current picture of his brain." The statement also said that equipment used to drain fluid from the prime minister's brain was to be replaced and an intravenous drip would be inserted into his arm with the aim of "reducing the danger of infection". Chief neurosurgeon Felix Umansky confirmed that the Israeli leader, who he said had shown additional slight improvements on Thursday, would undergo another CT scan later on Thursday. "Each day there is slight progress. He is moving more easily although he is still under sedation," he told AFP. I AM: a woman a man I'M SEEKING: a man a woman With photo: "Little by little, he is giving us more signs that he is getting better but he will not wake up for the next day or two." The surgeon also said that he believed Sharon was currently "out of danger", but warned that like any other coma patient, the Israeli leader was "not immune to infections". Although Sharon was suffering from a slightly irregular heartbeat (known as 'arrhythmia'), medication had returned his heart beat to normal. Umansky also said Sharon had reacted upon hearing the voice of his son, Gilad. "His blood pressure went up significantly at the very moment when (Gilad) told him he was standing at his side," he told AFP. But he urged patience, saying that the process of coming out of a coma was extremely slow. "You cannot expect us to press a button and suddenly the patient coming out of a coma will start talking and moving as if nothing had happened. The prime minister will remain unconscious and will come out of it very slowly," he stressed. "From now on, we cannot expect sudden changes."