<Tr> <Th> Area served </Th> <Td> Houston, Texas </Td> </Tr> <Tr> <Th> Website </Th> <Td> http://www.chistlukeshealth.org/ </Td> </Tr> <P> CHI St. Luke's Health is a health system located in the Greater Houston area . It is a part of one of the largest health systems and the second largest faith - based health system in the United States, Catholic Health Initiatives . CHI St. Luke's Health's facilities have been recognized as some of the best in the nation . </P> <P> St. Luke's Episcopal Hospital was founded by the Episcopal Diocese of Texas in 1954 and was one of the first hospitals established in the Texas Medical Center . In 1962, Denton A. Cooley founded the Texas Heart Institute, which became affiliated with St. Luke's Episcopal Hospital . It was there that Denton A. Cooley performed the first successful heart transplantation in the United States in 1968 and the first artificial heart implantation in the world in 1969 . </P>

What does chi mean in chi st lukes