Impact of dual-energy CT prior to radioembolization (RE)

Abstract

Eighty kVp DECT enables a significantly better assessment of the arteries of the upper abdomen for therapy planning in comparison to correlating 120 kVp datasets. This may allow for identification of potential extrahepatic non-target vessels and assessment of target volume for therapy planning prior to DSA.

Imaging in interventional oncology, the better you see, the better you treat

“…Evaluation of the ablation margins and response or recurrence of disease during and after ablation or other targeted therapies is another interesting topic for DECT. [31][32][33][34][35] Dual-energy CT may allow for better pre-therapy planning due to the identification of vessels than perfusion CT 36 and can easily detect the amount of lipiodol deposit in TACE. 37 Both perfusion CT and dual-energy CT can make detection of HCC lesions easier, although dual-energy CT provides the same results when scanning in late arterial and portal venous phase, with extra information due to the dual-energy scan and with a lower radiation dose.…”

“…Dual‐energy CT, especially in the liver, bowel, kidney, pancreas and skin (melanoma) is beneficial because of the easier detection of small hyper‐ or hypovascularized lesions. Evaluation of the ablation margins and response or recurrence of disease during and after ablation or other targeted therapies is another interesting topic for DECT 31–35 . Dual‐energy CT may allow for better pre‐therapy planning due to the identification of vessels than perfusion CT 36 and can easily detect the amount of lipiodol deposit in TACE 37 .…”