Author Affiliations

Lise Lyngsnes Randeberg,¹ Andreas Winnem,² Rune Haaverstad,³ and Lars O. Svaasand⁴

¹Dept. of Electronics and Telecommunications, Norwegian University of Science and Technology, 7491 Trondheim, Norway, Telephone: +47 73594400, fax number: +47 73591441

²Dept. of Electronics and Telecommunications, Norwegian University of Science and Technology, 7491 Trondheim, Norway, Telephone: +47 73594400, fax number: +47 73591441

³Dept. of Cardiotoracic Surgery, Trondheim University Hospital, 7018 Trondheim, Norway, Telephone: +47 73867000, fax number: +47 73867029

⁴Dept. of Electronics and Telecommunications, Norwegian University of Science and Technology, 7491 Trondheim, Norway, Telephone: +47 73594400, fax number: +47 73591441