The usual ipsilateral approach for uterine artery embolization is to form a
Waltman loop. Newer nonbraided 4-F catheters can be problematic because of
their tendency to kink or unfold while the loop is being formed. Herein, a
modification of the Cope suture technique is described by which a Waltman
loop is formed with use of a 4-0 Tevdek suture that allows the catheter to
be folded back on itself, drawing it into the ipsilateral iliac artery. If
necessary, the catheter can be prevented from unlooping by twisting the cat
heter on itself to lock it in position. The technique allows for efficient
catheterization of the ipsilateral uterine artery.