Michelle Williams

Dual-energy cardiac and pulmonary CT

Dual-energy computed tomography (CT) imaging involves obtaining two image datasets acquired at different tube voltages. It harnesses the difference in attenuation when different photon energy levels are applied. Using specialised software, the two images are combined to produce a variety of derived images. This has utility in both cardiac and pulmonary imaging, including improving image […]

Michelle C Williams

University of Edinburgh

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CT myocardial perfusion imaging

Computed tomography (CT) is capable of comprehensively assessing the heart in order to provide information on anatomy, function, perfusion and viability. CT coronary angiography can assess both the coronary artery lumen and the characteristics of atherosclerotic plaques. CT myocardial perfusion imaging can provide additional information compared to CT coronary angiography by highlighting areas of myocardial […]

Dr Michelle Williams

NHS Lothian

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