Ferrara was appointed to the faculty at the University of Virginia in 1989. In 1998 Ferrara returned to the University of California, Davis. In 2000 Ferrara founded the University of California, Davis Department of Biomedical Engineering, supported by a $12 million award from the Whitaker Foundation.[5] When she stepped down as Head of Department in 2005, the new department had risen to the 23rd in the United States.[6] At University of California, Davis, her research considered cancer diagnosis and image-guided drug delivery.[7] Image-guided drug delivery makes use of medical imaging methods (including positron emission tomography and magnetic resonance imaging) to target drug delivery.[7]
Her research crosses several themes, including immunotherapy,[8]molecular imaging,[9] ultrasound thermometry and image guided therapies. In particular, Ferrara has focussed on ultrasound therapy guided with magnetic resonance imaging, nanoparticle based cardiovascular imaging and image-guided drug delivery. A challenge in cancer therapeutics is that the treatments are often toxic, and getting high enough doses to diseased tissue can result in significant damage. To focus ultrasound for chemotherapy and immunotherapy Ferrara combines an annular array and Bruker MRI.[10]
Ferrara makes use of nanoparticle encapsulation and ultrasound to achieve high target-to-background imaging.[11] Alongside their work on cancer, the nanoparticles developed by Ferrara and co-workers can be used to image and deliver microRNA treatments for the treatment of damaged heart tissues.[12]
In 2018 Ferrar joined Stanford University as a professor of radiology.[4] She has extensively investigated the physics of microbubbles, which led her to believe that these may offer some therapeutics for ultrasound.[13][14] At Stanford Ferrara has explored the use of microbubbles injected with a therapeutic agent as a treatment for breast cancer, using ultrasound to selectively destroy the microbubbles (through resonance) when they reach the appropriate location.[15][16]
Ferrara, Katherine; Pollard, Rachel; Borden, Mark (2007-08-15). "Ultrasound Microbubble Contrast Agents: Fundamentals and Application to Gene and Drug Delivery". Annual Review of Biomedical Engineering. 9 (1): 415–447. doi:10.1146/annurev.bioeng.8.061505.095852. ISSN1523-9829. PMID17651012.
Chomas, J.E.; Dayton, P.; Allen, J.; Morgan, K.; Ferrara, K.W. (2001). "Mechanisms of contrast agent destruction". IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control. 48 (1): 232–248. doi:10.1109/58.896136. ISSN1525-8955. PMID11367791. S2CID10013402.
^Ferrara, Katherine Whittaker (1983). Implementation of speech synthesis using a microprocessor (Thesis). OCLC10645282.
^Ferrara, K.W.; Zager, B.G.; Sokil-Melgar, J.B.; Silverman, R.H.; Aslanidis, I.M. (1996). "Estimation of blood velocity with high frequency ultrasound". IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control. 43 (1): 149–157. doi:10.1109/58.484474. ISSN1525-8955. S2CID12197215.
^"2012 Achievement Award of the IEEE Ultrasonics, Ferroelectrics, and Frequency Control Society Katherine W. Ferrara". IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control. 60 (7): 1284. 2013-08-13. doi:10.1109/TUFFC.2013.2700. ISSN1525-8955.