An exciting application of ultrasound contrast technology has been recently presented which uses molecular interactions between gas filled contrast agents tagged with substances that bind to tumors. This is exciting because we may be able to spot cancers while they are very small, and treat them before they spread.
"ScienceDaily (Mar. 6, 2010) — An imaging technique combining ultrasound and specially modified contrast agents may allow researchers to noninvasive detect cancer and show its progression, according to research published in the March issue of The Journal of Nuclear Medicine (JNM). The technique enables researchers to visualize tumor activity at the molecular level." Please see the full post here: http://www.sciencedaily.com/releases/2010/03/100301102751.htm
Thanks Science Daily. I hope further research is fruitful in this area. This seems like it may be applicable to many types of cancer, and perhaps, other diseases.