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.
Thomas Dewey. Thomas Edmund Dewey (born. March 24, 1902, Owosso, Michigan  died March 16, 1971, Florida) was the Governor of New York 1943-1954) and the unsuccessful Republican candidate for the U.S. Presidency in 1944 and 1948.