Both PET and CT useful for judging biologic changes
Not only can positron emission tomography (PET) help evaluate treatment for gastrointestinal stromal tumors (GIST) by revealing biologic changes such as how the tumor processes the fuel that makes it grow, but CT can indirectly reveal biologic changes as well by analyzing the tumors density, say researchers from The University of Texas M. D. Anderson Cancer Center in Houston.
For the study, researchers evaluated 173 GISTs--tumors that usually begin in the wall of the GI tract--in 36 patients who had undergone a protein enzyme inhibitor treatment, 29 of which underwent both CT and PET. In those 29 patients, the researchers found a high correlation between the tumor responses based on tumor density and changes in internal characteristics of the tumors shown on CT and the changes in glucose metabolism of the tumors shown on PET.
Jason Ocker | EurekAlert!
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An international team of physicists has monitored the scattering behaviour of electrons in a non-conducting material in real-time. Their insights could be beneficial for radiotherapy.
We can refer to electrons in non-conducting materials as ‘sluggish’. Typically, they remain fixed in a location, deep inside an atomic composite. It is hence...
Two-dimensional magnetic structures are regarded as a promising material for new types of data storage, since the magnetic properties of individual molecular building blocks can be investigated and modified. For the first time, researchers have now produced a wafer-thin ferrimagnet, in which molecules with different magnetic centers arrange themselves on a gold surface to form a checkerboard pattern. Scientists at the Swiss Nanoscience Institute at the University of Basel and the Paul Scherrer Institute published their findings in the journal Nature Communications.
Ferrimagnets are composed of two centers which are magnetized at different strengths and point in opposing directions. Two-dimensional, quasi-flat ferrimagnets...
An Australian-Chinese research team has created the world's thinnest hologram, paving the way towards the integration of 3D holography into everyday...
In the race to produce a quantum computer, a number of projects are seeking a way to create quantum bits -- or qubits -- that are stable, meaning they are not much affected by changes in their environment. This normally needs highly nonlinear non-dissipative elements capable of functioning at very low temperatures.
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Dental plaque and the viscous brown slime in drainpipes are two familiar examples of bacterial biofilms. Removing such bacterial depositions from surfaces is...
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