Because whole body CT and MRI screening are relatively new concepts, most occurring on a private pay or self-referral basis, limited data have been collected comparing the 2 methods.
Columbkille was born as Colm, meaning dove, in Donegal, Ireland in 521 A.D. to a family of Irish aristocracy. Since he was a direct descendant of Niall of the Nine Hostages, Columba was part of a lineage of kings who had ruled Ireland for six centuries.
Charismatic leaders, founding monasteries and being remembered as saints, are a feature of 6th-century Ireland. The first is St Finnian, who establishes the monastery of Clonard in Meath. Then there is St Ciaran, the father-figure of Clonmacnois on the Shannon, and St Brendan, the founder of Clonfert in Galway.