Dr. William Maxfield, a Tampa radiologist, agreed that Terri is not in a persistent vegetative state, noting her ability to follow commands and her responsiveness, according to the AP. After comparing Terri's 1996 CAT scan to her 2002 scan, Maxfield also testified that Terri's brain tissue appeared more localized and uniform.
"It tells me that the brain tissue on the [2002] study has a more normal appearance," Maxfield testified, adding that hyperbaric oxygen therapy, similar to Hammesfahr's recommendation, could lead to improvement, the AP reported.
http://www.nrlc.org/news/2002/NRL11/shiavo.html