Tuesday, February 1, 2011

What is an "Age of Injury" report, and How to Effectively Use It to Determine Causation?

Medical Expert Witness No. 106

Click here to view this Expert’s CV

A picture is worth a thousand words.  For litigation purposes, diagnostic images have become a vital tool in leveraging the perception of the case.  There is currently a scientific method of determining whether an injury was related or unrelated to the date of an accident, better known as an “Age of Injury” (or Causation) report. There are many radiologists that can produce an “Age of Injury” report however it is imperative to choose a radiology expert that utilizes effective methodology.

What Is An AOI Report?

An “Age of Injury” (AOI) report is produced when a radiologist reviews a diagnostic image (MRI, CT or other) along with the corresponding diagnostic report that had been completed by the first read radiologist, and tries to relate the reported findings (injuries) to a specific time frame.  A radiologist is able to make these determinations by identifying any and all objective signs of acute or blunt trauma to the anatomy vs. any signs of degenerative changes to the anatomy that evidence a chronic (over time) condition with no exacerbation at the time of the alleged injury. Utilizing the objective findings evident from the diagnostic films, the radiologist is then able to draw a reasonable conclusion as to whether the findings described are related or unrelated to the accident.

All radiologists are familiar with the signs of an acute injury vs. signs of a chronic change in the anatomy that had to have occurred over time.  Among these same radiologists, there will only be a very small intra-observer and inter-observer variability (difference of opinion).  An MRI image is an objective piece of information that will be available and unchanged forever.  Therefore, radiologists can always go back to the time of the study to take glimpse into the past to make assessments better than most other specialties. 


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