Abstract
PURPOSE: To report a technique for overcoming the positioning errors
caused by angulation and rotation of the proximal aortic neck when
anteroposterior fluoroscopic imaging is used during endograft deployment.
TECHNIQUE: Aortic neck angulation and rotation were measured preoperatively
using spiral computed tomographic angiography in sagittal and axial
projections. Before proximal graft deployment, the proximal end of
the endograft was centered in the field of view, and the position
of the C-arm was adjusted to the aortic neck angulation. Using this
technique, optimal positioning of the endograft relative to the true
position of the renal arteries can be achieved. CONCLUSIONS: C-arm
angulation and rotation is helpful in facilitating perfect positioning
for an optimal seal between the endograft and the infrarenal aortic
neck.
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