New technique will reduce CT scan radiation

BBC : Computed tomography, or CT, scans use low-energy x rays from multiple angles to create a three-dimensional image of an area of the body. However, for areas like the breasts where the soft tissue is particularly susceptible to x-ray radiation, less accurate imaging techniques are used to reduce exposure. Researchers at the European Synchrotron Radiation Facility in France developed a new variation of CT scanning called equally sloped tomography. The new technique uses advanced algorithms that allow it to create highly accurate images with a much lower radiation dose. By combining the new technique with high-energy x rays, the team obtained high-quality 3D images of tissue and a radiation dose level that was just 4% of traditional CT scans. Although the technique is promising, quality high-energy x-ray sources are hard to obtain in clinical settings.