Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

MRI shows liver tumors freezing in real time

30.11.2004


Cryotherapy combined with magnetic resonance imaging (MRI) is giving doctors unprecedented control during liver cancer treatment by allowing them to observe the tumors freezing in real time, according to a study presented today at the annual meeting of the Radiological Society of North America (RSNA).



"We can actually watch the iceball grow," said Kemal Tuncali, M.D. "We have better control over the means of killing the tumor with MR guidance and cryotherapy. We can also watch out for critical structures around the area that we don’t want to damage, like the bowel, stomach or gall bladder." Dr. Tuncali is director of genitourinary radiology services in the department of radiology at Brigham and Women’s Hospital in Boston.

Liver cancer is notoriously difficult to treat with standard methods such as chemotherapy and open surgery. Physicians are turning to alternative ways of destroying tumors, including cryotherapy. Interventional radiologists perform cryotherapy by inserting a needle called a cryoprobe directly into the cancerous tissue and using argon gas to freeze the tumor.


Using MRI, the radiologist can target the best site for placing the probe and monitor treatment as it happens to avoid damaging surrounding tissue. "We are improving imaging methods to monitor the ablation and closely observe the area that’s being treated," Dr. Tuncali said. "That part – the monitoring – is critical here and is missing with other minimally invasive techniques where we can’t see the exact area being treated because there’s no direct visualization."

Dr. Tuncali and colleagues treated 31 patients (ages 29 to 87) for liver tumors using MR-guided cryotherapy. Nineteen of 39 tumors (49 percent) were successfully ablated, with 17 requiring only one treatment. The non-invasive nature of cryotherapy also resulted in less scarring, quicker recovery times and shorter hospital stays. "The results of a study like this show that treating liver tumors and potentially other tumors with a combination of MR guidance and cryotherapy has very promising results," Dr. Tuncali said. "Not only does it show local success rates and survival numbers that are encouraging, but it also demonstrates the usefulness of monitoring with MRI."

Doug Dusik | EurekAlert!
Further information:
http://www.rsna.org

More articles from Health and Medicine:

nachricht Usher syndrome: Gene therapy restores hearing and balance
25.09.2017 | Institut Pasteur

nachricht MRI contrast agent locates and distinguishes aggressive from slow-growing breast cancer
25.09.2017 | Case Western Reserve University

All articles from Health and Medicine >>>

The most recent press releases about innovation >>>

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

Im Focus: The fastest light-driven current source

Controlling electronic current is essential to modern electronics, as data and signals are transferred by streams of electrons which are controlled at high speed. Demands on transmission speeds are also increasing as technology develops. Scientists from the Chair of Laser Physics and the Chair of Applied Physics at Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU) have succeeded in switching on a current with a desired direction in graphene using a single laser pulse within a femtosecond ¬¬ – a femtosecond corresponds to the millionth part of a billionth of a second. This is more than a thousand times faster compared to the most efficient transistors today.

Graphene is up to the job

Im Focus: LaserTAB: More efficient and precise contacts thanks to human-robot collaboration

At the productronica trade fair in Munich this November, the Fraunhofer Institute for Laser Technology ILT will be presenting Laser-Based Tape-Automated Bonding, LaserTAB for short. The experts from Aachen will be demonstrating how new battery cells and power electronics can be micro-welded more efficiently and precisely than ever before thanks to new optics and robot support.

Fraunhofer ILT from Aachen relies on a clever combination of robotics and a laser scanner with new optics as well as process monitoring, which it has developed...

Im Focus: The pyrenoid is a carbon-fixing liquid droplet

Plants and algae use the enzyme Rubisco to fix carbon dioxide, removing it from the atmosphere and converting it into biomass. Algae have figured out a way to increase the efficiency of carbon fixation. They gather most of their Rubisco into a ball-shaped microcompartment called the pyrenoid, which they flood with a high local concentration of carbon dioxide. A team of scientists at Princeton University, the Carnegie Institution for Science, Stanford University and the Max Plank Institute of Biochemistry have unravelled the mysteries of how the pyrenoid is assembled. These insights can help to engineer crops that remove more carbon dioxide from the atmosphere while producing more food.

A warming planet

Im Focus: Highly precise wiring in the Cerebral Cortex

Our brains house extremely complex neuronal circuits, whose detailed structures are still largely unknown. This is especially true for the so-called cerebral cortex of mammals, where among other things vision, thoughts or spatial orientation are being computed. Here the rules by which nerve cells are connected to each other are only partly understood. A team of scientists around Moritz Helmstaedter at the Frankfiurt Max Planck Institute for Brain Research and Helene Schmidt (Humboldt University in Berlin) have now discovered a surprisingly precise nerve cell connectivity pattern in the part of the cerebral cortex that is responsible for orienting the individual animal or human in space.

The researchers report online in Nature (Schmidt et al., 2017. Axonal synapse sorting in medial entorhinal cortex, DOI: 10.1038/nature24005) that synapses in...

Im Focus: Tiny lasers from a gallery of whispers

New technique promises tunable laser devices

Whispering gallery mode (WGM) resonators are used to make tiny micro-lasers, sensors, switches, routers and other devices. These tiny structures rely on a...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

“Lasers in Composites Symposium” in Aachen – from Science to Application

19.09.2017 | Event News

I-ESA 2018 – Call for Papers

12.09.2017 | Event News

EMBO at Basel Life, a new conference on current and emerging life science research

06.09.2017 | Event News

 
Latest News

Nerves control the body’s bacterial community

26.09.2017 | Life Sciences

Four elements make 2-D optical platform

26.09.2017 | Physics and Astronomy

Goodbye, login. Hello, heart scan

26.09.2017 | Information Technology

VideoLinks
B2B-VideoLinks
More VideoLinks >>>