mohammadali shahriari school of science and engineering sharif university of technology, international campus kish island, iran kambiz ghaemi osguie school of science and engineering sharif university of technology, international campus kish island, iran

abdolreza pazouki minimally invasive surgery research center, iran university of medical sciences, tehran, ir iran; minimally invasive surgery research center, iran university of medical sciences, tehran, ir iran. tel/fax: +98-2166555447 fatemeh jesmi minimally invasive surgery research center, iran university of medical sciences, tehran, ir iran

arthur atchabahian department of anesthesiology, nyu school of medicine, new york, usa; department of anesthesiology, nyu school of medicine, new york, ny, usa. tel: +1- 2125986085, fax: +1- 2125986163 thomas m hemmerling department of anesthesia, mcgill university, montreal, canada

j. cruz-lambert electrical and computer engineering department, the university of texas at san antonio, san antonio, texas, usa p. benavidez electrical and computer engineering department, the university of texas at san antonio, san antonio, texas, usa j. ortiz electrical and computer engineering department, the university of texas at san antonio, san antonio, texas, usa n. gallardo electrical and computer engineering department, the university of texas at san antonio, san antonio, texas, usa b. a. erol electrical and computer engineering department, the university of texas at san antonio, san antonio, texas, usa j. richey electrical and computer engineering department, the university of texas at san antonio, san antonio, texas, usa s. morris