4. Ultra-fast systems
CT is being used more as image quality and speed improve. “Helical scanning and multidetector row CT have led to a tremendous improvement in the speed with which 3D volume can be imaged, and much better routine spatial resolution in the slice direction,” advised the report, adding that in combination with other advances, imaging speed has seen a “phenomenal increase” – essentially exponential – since the early 1970s.
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Like the 320 and 640 slice systems, ultra-fast systems might not seem like necessary investments for the average imaging facility, but for those who adopt them, the benefits are clear.
“This increase in speed, along with improvements in low-contrast detectability and image quality, has allowed the technique to be much more robust and this, in turn, has enabled CT to becomemain stream in medical care,” according to the report.
Examples of high speed systems include the Siemens
SOMATOM Drive dual source CT scanner and GE Healthcare's
Revolution GSI system.
Next: Better resolutions with smart photons
