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3-D Imaging Might Make Some Surgeries Safer
Date:9/12/2012

ves and blood vessels in the area where they are operating.

One expert said the software's clinical value remains to be seen.

Although this tool would probably provide doctors with information before surgery, "it's a question of how often is it going to be useful and how many people do you have to study to get useful information for one person," said Dr. Bruce Davidson, a professor of otolaryngology-head and neck surgery at Georgetown University Hospital in Washington, D.C.

"I've done a thousand thyroidectomies, I've seen three [nonrecurrent laryngeal nerves], and I've recognized each one at the time and there wasn't an injury to it," Davidson said.

"A lot of the 3-D imaging just naturally happens in the head of the surgeon or radiologist," Davidson added.

While imaging before thyroid and parathyroid surgery is very common to localize the tumor, "we typically do an ultrasound and in cases where we still have questions, we do MRI," Davidson said.

Unlike MRI and ultrasound, CT scanning exposes patients to low levels of radiation. CT scanning can also cause a rare complication called thyroid storm in people with a hyperactive thyroid gland that leads to high blood pressure and agitation.

Diana and his colleagues are working to update their computer software so that it can create virtual pictures from MRI imaging, which does not carry those risks. The program can already use images from ultrasound, but Diana said that these are sometimes less accurate than MRI.

MRI imaging can cost two to three times more than CT scanning, Davidson estimated.

The current case report is part of a study that Diana's colleagues are conducting at the Research Institute against Digestive Cancer in Strasbourg to evaluate the utility of virtual neck exploration in connection with parathyroid surgery.

The research team has also used their software to create a virtual image of a patient's adrenal glands, located above the kidneys,
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