AI Article Synopsis
- This study explores the potential of spectral computed tomography (CT) to enhance the visualization of blood vessels by distinguishing between different materials, such as gadolinium-based contrast agents, calcified plaque, and stent components.
- Researchers utilized a specialized preclinical spectral CT scanner with photon-counting technology to scan a model of a blood vessel that included a partially obstructed stent.
- The results indicated that the images produced effectively isolated the gadolinium contrast, allowing for clear visualization of the blood vessel lumen while minimizing the appearance of calcified plaque and stent material.
Article Abstract
The purpose of this study was to investigate whether spectral computed tomography (CT) has the potential to improve luminal depiction by differentiating among intravascular gadolinium-based contrast agent, calcified plaque, and stent material by using the characteristic k edge of gadolinium. A preclinical spectral CT scanner with a photon-counting detector and six energy threshold levels was used to scan a phantom vessel. A partially occluded stent was simulated by using a calcified plaque isoattenuated to a surrounding gadolinium chelate solution. The reconstructed images showed an effective isolation of the gadolinium with subsequent clear depiction of the perfused vessel lumen. The calcified plaque and the stent material are suppressed.
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| http://dx.doi.org/10.1148/radiol.2492080560 | DOI Listing |
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