Diffusion-Weighted MR Imaging in Carotid Angioplasty and Stenting with Protection by the Reversed Carotid Arterial Flow
F. Asakuraa,
K. Kawaguchia,
H. Sakaidaa,
N. Tomaa,
S. Matsushimaa,
K. Kuraishia,
H. Tanemuraa,
Y. Miuraa,
M. Maedab and
W. Takia
a Department of Neurosurgery, Mie University, School of Medicine, Mie, Japan
b Department of Radiology, Mie University, School of Medicine, Mie, Japan
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Fig 1. Schema of the procedure by using the Parodi Anti-Emboli System. STA, superior thyroid artery; FA, facial artery; arrow, reversed blood flow; double arrow, normal blood flow; spot, debris
A, Flow reversal from the intracranial ICA by blockade of both the proximal CCA and ECA.
B, Placement of stent.
C, Postdilation.
D, Irrigation of debris by flow reversal.
E, Return to normal flow.
F, Final
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Fig 2. Carotid angioplasty with stent by Parodi Anti-Emboli System (left carotid angiogram, anteroposterior and lateral view). White arrow, blocking balloon in the external carotid artery; black arrow, proximal blocking balloon in the common carotid artery.
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Fig 3. Ischemic lesions after carotid angioplasty with stent by Parodi Anti-Emboli System (diffusion-weighted MR image).
Top, Case 8 (after left carotid stent placement).
Bottom, Case 9 (after left carotid stent placement).
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