Cine phase contrast angiography provided sufficient accuracy to assess occlusive vascular disease severity, though suboptimal image quality missed an aortic dissection and 1 of 4 aneurysms.
Observational (n=16)
Does cine phase contrast angiography accurately visualize local hemodynamics in normal volunteers and patients with peripheral artery flow disturbances?
Cine phase contrast angiography provides sufficient accuracy and time resolution to assess functional hemodynamics in occlusive vascular disease, though morphological image quality may be suboptimal.
Cine phase contrast angiography (PCA) is a modified MR phase contrast sequence that acquires up to 22 coronal phase images per mean cardiac cycle. The ability of the sequence to visualise local haemodynamics was investigated in 7 normal volunteers and 9 patients with flow disturbances of the peripheral arteries using a 1.5 T imager. Functional flow information provided by coronal cine PCA was correlated with quantitative data obtained by MR flow measurements and vessel morphology confirmed by conventional angiograms. Due to the yet suboptimal image quality, an aortic dissection and 1 of 4 aneurysms could not be depicted morphologically. The temporal pattern of arterial perfusion in cine PCA corresponded with flow velocity versus time data provided by quantitative MR flow measurements. Accuracy and time resolution of cine PCA was thus sufficient to provide functional information on the severity of occlusive vascular disease.
Krug et al. (Sat,) conducted a observational in Flow disturbances of the peripheral arteries (n=16). Cine phase contrast angiography (PCA) vs. Quantitative MR flow measurements and conventional angiograms was evaluated on Visualisation of local haemodynamics and correlation with quantitative MR flow measurements. Cine phase contrast angiography provided sufficient accuracy to assess occlusive vascular disease severity, though suboptimal image quality missed an aortic dissection and 1 of 4 aneurysms.