Significantly more and smaller liver tumors can be detected by contrast-enhanced MRI when compared to whole-body FDG PET, say researchers from Massachusetts General Hospital in Boston.
For the study, the researchers analyzed 79 liver tumors in 30 patients. MRI detected all 79 of the lesions, of which 33 were less than 1 cm. PET detected 65 lesions, of which only 12 were less than 1 cm. In a per-lesion analysis, MRI had an accuracy rate of 75.5% compared to 64.1% for PET.
“FDG PET has been shown to be an excellent tool for gastrointestinal cancer staging, but its role in the detection of liver metastases had not been established. Contrast-enhanced MRI, on the other hand, is considered a sensitive imaging technique for liver lesion depiction,” said Dushyant V. Sahani, MD, lead author of the study. “We compared the two because we wanted to determine which imaging method was better for finding liver metastases,” he said.
Jason Ocker | EurekAlert!
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More and more automobile companies are focusing on body parts made of carbon fiber reinforced plastics (CFRP). However, manufacturing and repair costs must be further reduced in order to make CFRP more economical in use. Together with the Volkswagen AG and five other partners in the project HolQueSt 3D, the Laser Zentrum Hannover e.V. (LZH) has developed laser processes for the automatic trimming, drilling and repair of three-dimensional components.
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Reflecting the structure of composites found in nature and the ancient world, researchers at the University of Illinois at Urbana-Champaign have synthesized thin carbon nanotube (CNT) textiles that exhibit both high electrical conductivity and a level of toughness that is about fifty times higher than copper films, currently used in electronics.
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The nearby, giant radio galaxy M87 hosts a supermassive black hole (BH) and is well-known for its bright jet dominating the spectrum over ten orders of magnitude in frequency. Due to its proximity, jet prominence, and the large black hole mass, M87 is the best laboratory for investigating the formation, acceleration, and collimation of relativistic jets. A research team led by Silke Britzen from the Max Planck Institute for Radio Astronomy in Bonn, Germany, has found strong indication for turbulent processes connecting the accretion disk and the jet of that galaxy providing insights into the longstanding problem of the origin of astrophysical jets.
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