The contrast uses a colorant/dye introduced with an IV during your MRI. No contrast is just a MRI without an IV. The dye is used to be able to see more detail.he contrast uses a colorant/dye introduced with an IV during your MRI. No contrast is just a MRI without an IV. The dye is used to be able to see more detail.
George Dewey. George Dewey (December 26, 1837 â January 16, 1917) was Admiral of the Navy, the only person in United States history to have attained the rank. He is best known for his victory at the Battle of Manila Bay during the SpanishâAmerican War.
Dewey invented the Dewey Decimal Classification (DDC) system when he was 21 and working as a student assistant in the library of Amherst College. His work created a revolution in library science and set in motion a new era of librarianship. Melvil Dewey well deserves the title of Father of Modern Librarianship..