This fourth article of our Dual Energy series gives an overview of the most important clinical applications of Dual Energy, including color coding of contrast material, perfusion imaging, angiography, and differentiation of renal stones and tendons/ligaments. Read more

The following question has been sent by  Minh Truong: Please, give me a advise, How to compare between CT perfusion and MR perfusion, which one is better than? thank you and best regards Thorsten R.C. Johnson, M.D., University Hospitals Grosshadern, Munich: Both MR and CT pulmonary perfusion imaging are currently still being evaluated scientifically … Read more

Spiral dual energy CT angiography offers new opportunities for the assessing the relevance of pulmonary emboli. In an initial study at the University of Munich, we examined 24 patients with suspected pulmonary embolism. Exams were performed with a single acquisition, spiral dual energy CT angiography protocol on a SOMATOM Definition. Voxels … Read more

Case History 67-year old with severe dyspnea and positive D-dimer test is referred for CT angiography to confirm or to rule out pulmonary embolism. Question The primary clinical concern … Read more

Please, click on the title to see the protocol. Read more

CT angiography has emerged as the diagnostic standard for detecting pulmonary embolism. It has been shown that pulmonary emboli can be detected with high reliability even at segmental and subsegmental levels. Recent studies have shown the sensitivity of CTA to be 90 – 100 % and the specificity to be … Read more