Improved non-contrast-enhanced MR Venography of lower extremities using non-triggered 3D-GRE-EPI.

MRI is one of a promising diagnostic of lower extremity arterial and venous disease, and non-contrast-enhanced MR angiography has an array of specific applications for numerous clinical indications. In this study, we demonstrated non-contrast-enhanced non-triggered 3D gradient-echo echo-planer-imaging (3D-GRE-EPI) can provide high quality MR Venography in lower extremities. Consequently, 3D-GRE-EPI was provided high sharpness, contrast and could distinguish veins and arteries.