Taming the expert: standards and implications of radiologist expert witness testimony.

In light of the proliferation and pitfalls of expert witness testimony provided by radiologists, this article offers an overview of the standards for such testimony, as enforced by the courts, the relevant professional societies, and peer-review processes. The article also offers practical suggestions that encourage radiologist expert witnesses to be both ethical and effective in spite of the often inconsistent ambitions, expectations, and obligations of the expert's role.