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CT

In the top row, CT images of an animal with cancer before (0h) and 24-72 hours after injection of 10 nm contrast agents into the circulation. The cancerous tissue is marked in the red circle. The accumulation of the contrast material in the tumor can be seen with micro CT in small animals. In the bottom row, an electron microscope image of cancer tissue, demonstrating a single cancer cell (left) from an animal injected with a contrast medium containing 30 nm gold particles. The dark particles are gold particles marked with red arrows. On the right - magnification of organelles from the same cell containing the contrast agents.

Early diagnosis of cancerous tumors using CT

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The method combines computed tomography (CT) - capable of providing "slices" of the XNUMXD structure (the circles) - together with X-rays that provide an image of the distribution of the particles within the structure (PDFs, visible in the graphs) in order to present the information regarding the nanoscale structure and chemistry ( the different colors) inside the material, pixel by pixel and in XNUMXD [courtesy of Columbia University].

A new method that combines the advantages of X-rays and CT

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