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

By Carina Storrs
HealthDay Reporter

WEDNESDAY, Sept. 12 (HealthDay News) -- Researchers in France have developed a computer program they say could make surgery safer by providing doctors with a three-dimensional road map of a patient's interior.

The program, which turns medical images from CT scans into 3-D pictures, was tested on a 66-year-old woman before surgery to remove a tumor from her parathyroid gland.

"We believe the image guidance may represent the next revolution in surgery," said study co-author Dr. Michele Diana, a surgical research fellow at the Research Institute against Digestive Cancer in Strasbourg.

The group created a virtual image of the patient's neck based on prior CT scans. While the CT scans allowed her doctors to find the tumor in her neck, this 3-D virtual model gave them an idea where her nerves and blood vessels were, Diana explained.

The virtual picture alerted doctors that one of the nerves in her neck, called the laryngeal nerve, followed an unusual pathway.

"In the absence of 3-D modeling, we would have missed the variation," said Diana. Instead, her surgeons were able to make an incision that avoided damage to her laryngeal nerve.

Laryngeal nerves have a divergent path, called nonrecurrent, in less than 1 percent of patients. Injury to this nerve can lead to voice hoarseness and voice loss.

"We contribute more than 100 cases of parathyroidectomies per year so if anatomical variation is in 1 percent of patients, that is one case per year. We cannot tolerate this kind of complication," Diana said.

The case report was described in a letter published Sept. 13 in the New England Journal of Medicine.

The software that Diana and his colleagues developed helps surgeons plan their procedure, Diana said. In addition, doctors can overlay the virtual image on top of the actual images captured during surgery to give them an idea of the tissues, nerves 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, which they say helped guide surgeons removing a cancerous adrenal gland.

Diana and his colleagues are also using their software for surgeries to remove tumors in the liver and pancreas.

In these cases, Diana said, virtual exploration not only helps the surgeon avoid nerves and blood vessels, but could also make it easier to remove only the cancerous tissue while leaving as much healthy tissue as possible.

More information

For more information about thyroid and parathyroid health, visit the American Thyroid Association.

SOURCES: Michele Diana, M.D., surgical research fellow, Research Institute against Digestive Cancer, University Hospital Institute, Strasbourg, France; Bruce Davidson, M.D., professor and chairman, otolaryngology-head and neck surgery, Georgetown University Hospital, Washington, D.C; Sept. 13, 2012, New England Journal of Medicine


'/>"/>
Copyright©2012 ScoutNews,LLC.
All rights reserved  

Related medicine news :

1. Pretreatment PET/CT imaging of lymph nodes predicts recurrence in breast cancer patients
2. Non-invasive diagnostic imaging costs to Medicare Part B down significantly since 2006
3. Accuracy of narrow band imaging with colonoscopy allows for distal non-cancerous polyps to be left in place
4. ASGE initiative examines real-time imaging of Barretts esophagus
5. Theranostic imaging offers means of killing prostate cancer cells
6. Difficult to diagnose cases of infectious endocarditis solved with SPECT/CT imaging agent
7. Imaging Tests Up Among Advanced Cancer Patients
8. Diagnostic imaging increases among stage IV cancer patients on Medicare
9. ACR: Medical imaging study in health affairs incomplete and potentially misleading
10. Fighting obesity with thermal imaging
11. Noninvasive imaging technique may help kids with heart transplants
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
3-D Imaging Might Make Some Surgeries Safer
(Date:5/21/2017)... ... May 20, 2017 , ... ... designs created specifically for use in Final Cut Pro X. The business-oriented elements ... productions. Pixel Film Studios’ ProParagraph Corporate will deliver a professional and distinguished look ...
(Date:5/21/2017)... ... ... Florida Pain Relief Group, a division of Physician Partners of America (PPOA), is ... Melbourne, on Monday, May 22. Initially the clinic will be supervised by Physician Partners ... 23 pain management clinics in Florida and the Dallas-Fort Worth, Texas metro area, and ...
(Date:5/21/2017)... Houston,Texas (PRWEB) , ... May 21, 2017 , ... ... but if it's been longer than six months since you've seen a dentist, ... dentist twice per year and getting x-rays once per year. , Dental checkups ...
(Date:5/19/2017)... ... May 19, 2017 , ... ... in an upcoming episode of Innovations with Ed Begley, Jr., airing fourth quarter ... the distributor of a clean, organic dietary supplement made from naturally occurring ingredients. ...
(Date:5/19/2017)... CA (PRWEB) , ... May 19, 2017 , ... The ... consulting to families and entrepreneurs throughout the California Central Valley, is announcing a joint ... of raising community support for a local kid’s camp event. , The Boys and ...
Breaking Medicine News(10 mins):
(Date:5/4/2017)... May 4, 2017  Fortuna Fix Inc. (" Fortuna ... the first to eliminate the need for embryonic and fetal ... treat neurodegenerative diseases. Fortuna announced today ... Michael Fehlings , MD, PhD; Father Kevin FitzGerald ... MPH; and Professor James Giordano , PhD. ...
(Date:5/4/2017)... 2017  DarioHealth Corp. (NASDAQ: DRIO), a leading global ... solutions, today announced that it is teaming up with ... Limited to lower diabetes healthcare costs in ... which is available throughout all provinces and territories in ... eligible for additional savings when shopping for Dario supplies ...
(Date:5/3/2017)... 2017  Kalorama Information notes that transplant diagnostics ... year and this is projected to continue to ... (HSCT) or bone marrow transplants require histocompatibility between ... for this task. This according to a new ... The various PCR-based methodologies, Sanger sequencing and NGS ...
Breaking Medicine Technology: