Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Radio-guided surgery a safe and simple way to remove potentially cancerous nodules in the lung

28.02.2011
European Multidisciplinary Conference in Thoracic Oncology news

Using tiny spheres of radioactive liquid to guide surgeons as they remove potentially cancerous material in the lungs is safe and more effective than other techniques, Italian researchers report at the European Multidisciplinary Conference in Thoracic Oncology (EMCTO), 24-26 February 2011, Lugano, Switzerland.

Dr Luca Bertolaccini, Dr Alberto Terzi and colleagues from Santa Croce e Carle Hospital in Cuneo, Italy, studied a technique known as radio-guided surgery in 19 patients. Each of the patients had been found to have 'single pulmonary nodules' in their lungs.

Single pulmonary nodules are solitary abnormalities in the lungs that are smaller than 3 cm in diameter. Improvements in scanning techniques such as computed tomography mean that these very small nodules are becoming more commonly found.

If such nodules are found to be malignant, then surgical treatment to remove them should be undertaken immediately, Dr Bertolaccini said. "The problem is that such lesions are usually peripheral, making bronchoscopic approaches to diagnosis unsuccessful, while the accuracy of CT-guided biopsy is hindered by the small diameter and by the patient's respiratory movements during the exam."

"Video-assisted thoracoscopic surgery (VATS) is nowadays the procedure of choice if we want to surgically biopsy and remove peripheral lung nodules. However, the use of VATS is limited by the difficulty in localizing small, deep, or non-solid lung nodules where direct finger palpation may not be possible during surgery."

Using radio-guided surgery appears to overcome these problems, the researchers found. First they inserted a needle into the lung to reach the lesion or the lung tissue surrounding it. A CT scan carried out while the needle was in place confirmed its exact position.

Next, they injected a solution of 0.3 ml of microspheres of human albumin serum labeled with Technetiumm (99mTc), an element that is often used for medical tests. After injection, they used another CT scan and a technique called gamma scintigraphy --which visualizes the gamma radiation being emitted by the radioactive isotope-- to confirm precise staining of the nodule.

During surgery to remove the nodule, the researchers used a gamma detector probe to ensure they had removed all the radio-labeled tissue.

The researchers found that the technique was able to localize nodules in all 19 patients. On average it took 6 minutes to detect the nodule with the gamma probe.

Further analysis of the tissue that had been removed showed that it was a primary lung cancer in 8 cases, and a secondary lesion in 4 cases. The remaining 7 patients were found to have benign nodules. There were no complications during or after surgery.

This study shows that radio-guided surgery is a safe and simple technique for localizing single pulmonary nodules, Dr Terzi said. "Radio-guided thoracoscopy seems to be an effective procedure with fewer complications and failures than other techniques."

Commenting on the study, Dr Eric Lim, Consultant Thoracic Surgeon, Royal Brompton Hospital and Senior Lecturer, National Heart and Lung Institute, Imperial College, London, who was not involved in the study, said: "Dr Bertolaccini reports an innovative method to localize nodules that can be difficult for the surgeon to identify during routine surgery."

"This technology supports the current practice of video-assisted thoracoscopic lung resection as surgeons continuously strive to reduce incision size, pain and length of stay to increase the acceptability of surgery for lung cancer," said Dr Lim.

Vanessa Pavinato | EurekAlert!
Further information:
http://www.esmo.org

More articles from Medical Engineering:

nachricht New technique makes brain scans better
22.06.2017 | Massachusetts Institute of Technology

nachricht New technology enables effective simultaneous testing for multiple blood-borne pathogens
13.06.2017 | Elsevier

All articles from Medical Engineering >>>

The most recent press releases about innovation >>>

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

Im Focus: Can we see monkeys from space? Emerging technologies to map biodiversity

An international team of scientists has proposed a new multi-disciplinary approach in which an array of new technologies will allow us to map biodiversity and the risks that wildlife is facing at the scale of whole landscapes. The findings are published in Nature Ecology and Evolution. This international research is led by the Kunming Institute of Zoology from China, University of East Anglia, University of Leicester and the Leibniz Institute for Zoo and Wildlife Research.

Using a combination of satellite and ground data, the team proposes that it is now possible to map biodiversity with an accuracy that has not been previously...

Im Focus: Climate satellite: Tracking methane with robust laser technology

Heatwaves in the Arctic, longer periods of vegetation in Europe, severe floods in West Africa – starting in 2021, scientists want to explore the emissions of the greenhouse gas methane with the German-French satellite MERLIN. This is made possible by a new robust laser system of the Fraunhofer Institute for Laser Technology ILT in Aachen, which achieves unprecedented measurement accuracy.

Methane is primarily the result of the decomposition of organic matter. The gas has a 25 times greater warming potential than carbon dioxide, but is not as...

Im Focus: How protons move through a fuel cell

Hydrogen is regarded as the energy source of the future: It is produced with solar power and can be used to generate heat and electricity in fuel cells. Empa researchers have now succeeded in decoding the movement of hydrogen ions in crystals – a key step towards more efficient energy conversion in the hydrogen industry of tomorrow.

As charge carriers, electrons and ions play the leading role in electrochemical energy storage devices and converters such as batteries and fuel cells. Proton...

Im Focus: A unique data centre for cosmological simulations

Scientists from the Excellence Cluster Universe at the Ludwig-Maximilians-Universität Munich have establised "Cosmowebportal", a unique data centre for cosmological simulations located at the Leibniz Supercomputing Centre (LRZ) of the Bavarian Academy of Sciences. The complete results of a series of large hydrodynamical cosmological simulations are available, with data volumes typically exceeding several hundred terabytes. Scientists worldwide can interactively explore these complex simulations via a web interface and directly access the results.

With current telescopes, scientists can observe our Universe’s galaxies and galaxy clusters and their distribution along an invisible cosmic web. From the...

Im Focus: Scientists develop molecular thermometer for contactless measurement using infrared light

Temperature measurements possible even on the smallest scale / Molecular ruby for use in material sciences, biology, and medicine

Chemists at Johannes Gutenberg University Mainz (JGU) in cooperation with researchers of the German Federal Institute for Materials Research and Testing (BAM)...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

Plants are networkers

19.06.2017 | Event News

Digital Survival Training for Executives

13.06.2017 | Event News

Global Learning Council Summit 2017

13.06.2017 | Event News

 
Latest News

Quantum thermometer or optical refrigerator?

23.06.2017 | Physics and Astronomy

A 100-year-old physics problem has been solved at EPFL

23.06.2017 | Physics and Astronomy

Equipping form with function

23.06.2017 | Information Technology

VideoLinks
B2B-VideoLinks
More VideoLinks >>>