Medical ultrasound
A contrast medium for medical ultrasonography is a formulation of encapsulated gaseous microbubbles to increase echogenicity of blood, discovered by Dr Raymond Gramiak in 1968 and named contrast-enhanced ultrasound. This contrast medical imaging modality is clinically used throughout the world, in particular for echocardiography in the United States and for ultrasound radiology in Europe and Asia.
Charles Richard Whitfield
The use of ultrasound in medicine was pioneered by Donald, first at Glasgow Royal Maternity Hospital and subsequently at Glasgow's new maternity hospital, the Queen Mother's Hospital (QMH), which opened in 1964. Developments in ultrasound complemented Whitfield's own research interests in fetal medicine but was still regarded with scepticism in some quarters. Whitfield had more success in gaining acceptance for obstetric ultrasound than Donald himself, who was sometimes viewed as an obsessive eccentric. As he recalled, "an honorary attachment with Professor Donald in Glasgow in 1964 had convinced me that obstetric ultrasound did have a future, but later in that year in America I was told it was just a dream of a mad, red-headed Scotsman, so I should forget it! I was told confidentially, nothing, no good will come of it, but of course that was wrong".