Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Microcoils help locate small lung nodules

04.02.2009
A new technique combining computed tomography (CT) with fiber-coated surgical microcoils allows physicians to successfully locate and remove small lung nodules without the need for a more invasive procedure, according to a new study published in the February issue of Radiology.

"Small lung nodules are much more difficult to successfully locate and remove than larger nodules," said the study's lead author, John Mayo, M.D., professor of radiology and cardiology at the University of British Columbia in Vancouver. "Using CT guidance, we can accurately place the microcoils at the precise location of the small nodules and guide video-assisted thoracoscopic surgery (VATS) removal."

A lung nodule is a relatively round lesion, or area of abnormal tissue located within the lung. Lung nodules do not typically cause pain or other symptoms and are most often detected by imaging exams. However, it is not always possible to tell from imaging tests whether a nodule is benign or cancerous.

"When a patient has a very small nodule identified, we can use the microcoil technique to definitively discover whether or not the nodule is malignant and remove the entire nodule in one procedure," Dr. Mayo said.

VATS is a minimally invasive technique in which one or more small incisions are made in the patient's chest and a small fiber optic camera and surgical instruments are inserted through the incisions. Images transmitted by the camera guide the physician through the procedure.

VATS can replace a traditional thoracotomy, a surgical procedure that uses one larger incision to gain access to the chest. VATS typically results in less pain and faster recovery time for the patient compared to open surgery.

Because small, peripheral lung nodules can be difficult to locate, physicians often have to resort to the more invasive thoracotomy procedure, removing larger amounts of lung tissue to successfully locate small nodules.

For the study, Dr. Mayo and colleagues used CT-guided microcoil placement to assist in VATS removal of 75 small, peripheral lung nodules in 69 patients ranging in age from 31 to 81 years. Four patients had two nodules treated, and two of the patients had second nodules removed at a later date. In all, 75 procedures were performed. The microcoil technique allowed the researchers to locate 100 percent of small nodules, and 97 percent of the lung nodules were successfully and completely removed with VATS.

The results show that with precise microcoil localization, even small nodules can be removed with VATS.

"The real beauty of this procedure is that we are able to remove the entire nodule and very little surrounding tissue, so there is no decrease in lung function," Dr. Mayo said. "Recovery time is significantly reduced in these patients as a result. Instead of the three- to six-week recovery period that follows a thoracotomy, these patients can return to work within two to three days."

"Lung Nodules: CT-guided Placement of Microcoils to Direct Video-assisted Thoracoscopic Surgical Resection." Collaborating with Dr. Mayo were Joanne C. Clifton, M.Sc., Tom I. Powell, M.D., John C. English, M.D., Ken G. Evans, M.D., John Yee, M.D., Annette M. McWilliams, M.D., Stephen C. Lam, M.D., and Richard J. Finley, M.D. Journal attribution requested.

Radiology is edited by Herbert Y. Kressel, M.D., Harvard Medical School, Boston, Mass., and owned and published by the Radiological Society of North America, Inc. (RSNA.org/radiologyjnl)

RSNA is an association of more than 42,000 radiologists, radiation oncologists, medical physicists and related scientists committed to excellence in patient care through education and research. (RSNA.org)

For patient-friendly information on CT, visit RadiologyInfo.org

Linda Brooks | EurekAlert!
Further information:
http://www.rsna.org
http://RadiologyInfo.org

More articles from Medical Engineering:

nachricht New insight into the brain’s hidden depths: Jena scientists develop minimally-invasive endoscope
27.11.2018 | Leibniz-Institut für Photonische Technologien e. V.

nachricht New China and US studies back use of pulse oximeters for assessing blood pressure
21.11.2018 | University of British Columbia

All articles from Medical Engineering >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: An energy-efficient way to stay warm: Sew high-tech heating patches to your clothes

Personal patches could reduce energy waste in buildings, Rutgers-led study says

What if, instead of turning up the thermostat, you could warm up with high-tech, flexible patches sewn into your clothes - while significantly reducing your...

Im Focus: Lethal combination: Drug cocktail turns off the juice to cancer cells

A widely used diabetes medication combined with an antihypertensive drug specifically inhibits tumor growth – this was discovered by researchers from the University of Basel’s Biozentrum two years ago. In a follow-up study, recently published in “Cell Reports”, the scientists report that this drug cocktail induces cancer cell death by switching off their energy supply.

The widely used anti-diabetes drug metformin not only reduces blood sugar but also has an anti-cancer effect. However, the metformin dose commonly used in the...

Im Focus: New Foldable Drone Flies through Narrow Holes in Rescue Missions

A research team from the University of Zurich has developed a new drone that can retract its propeller arms in flight and make itself small to fit through narrow gaps and holes. This is particularly useful when searching for victims of natural disasters.

Inspecting a damaged building after an earthquake or during a fire is exactly the kind of job that human rescuers would like drones to do for them. A flying...

Im Focus: Topological material switched off and on for the first time

Key advance for future topological transistors

Over the last decade, there has been much excitement about the discovery, recognised by the Nobel Prize in Physics only two years ago, that there are two types...

Im Focus: Researchers develop method to transfer entire 2D circuits to any smooth surface

What if a sensor sensing a thing could be part of the thing itself? Rice University engineers believe they have a two-dimensional solution to do just that.

Rice engineers led by materials scientists Pulickel Ajayan and Jun Lou have developed a method to make atom-flat sensors that seamlessly integrate with devices...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

VideoLinks
Industry & Economy
Event News

ICTM Conference 2019: Digitization emerges as an engineering trend for turbomachinery construction

12.12.2018 | Event News

New Plastics Economy Investor Forum - Meeting Point for Innovations

10.12.2018 | Event News

EGU 2019 meeting: Media registration now open

06.12.2018 | Event News

 
Latest News

Magic number colloidal clusters

13.12.2018 | Life Sciences

UNLV study unlocks clues to how planets form

13.12.2018 | Physics and Astronomy

Live from the ocean research vessel Atlantis

13.12.2018 | Earth Sciences

VideoLinks
Science & Research
Overview of more VideoLinks >>>