作者
Julia Dangelmaier, Daniel Bar-Ness, Heiner Daerr, Daniela Muenzel, Salim Si-Mohamed, Sebastian Ehn, Alexander A Fingerle, Melanie A Kimm, Felix K Kopp, Loic Boussel, Ewald Roessl, Franz Pfeiffer, Ernst J Rummeny, Roland Proksa, Philippe Douek, Peter B Noël
发表日期
2018/8
期刊
European radiology
卷号
28
页码范围
3318-3325
出版商
Springer Berlin Heidelberg
简介
Objectives
After endovascular aortic repair (EVAR), discrimination of endoleaks and intra-aneurysmatic calcifications within the aneurysm often requires multiphase computed tomography (CT). Spectral photon-counting CT (SPCCT) in combination with a two-contrast agent injection protocol may provide reliable detection of endoleaks with a single CT acquisition.
Methods
To evaluate the feasibility of SPCCT, the stent-lined compartment of an abdominal aortic aneurysm phantom was filled with a mixture of iodine and gadolinium mimicking enhanced blood. To represent endoleaks of different flow rates, the adjacent compartments contained either one of the contrast agents or calcium chloride to mimic intra-aneurysmatic calcifications. After data acquisition with a SPCCT prototype scanner with multi-energy bins, material decomposition was performed to …
学术搜索中的文章
J Dangelmaier, D Bar-Ness, H Daerr, D Muenzel… - European radiology, 2018