Most interventional radiology procedures are initiated with the Seldinger technique,which employs a guidewire fed through the lumen of a puncture needle inserted into a vessel.This is the essence of the catheter-based intervention used in such fields as interventional radiology and cardiology;it provides a less invasive and safer means of access to vessels.Number the steps of the Seldinger technique in the appropriate order.
a.Threading of catheter over guidewire
b.Placement of needle in lumen of vessel (inner cannula removed)
c.Removal of needle (guidewire remains in place)
d.Removal of guidewire
e.Insertion of needle
f.Insertion of guidewire

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The Answer of Most interventional radiology procedures are initiated with the Seldinger technique,which employs a guidewire fed through the lumen of a puncture needle inserted into a vessel.This is the essence of the catheter-based intervention used in such fields as interventional radiology and cardiology;it provides a less invasive and safer means of access to vessels.Number the steps of the Seldinger technique in the appropriate order.
a.Threading of catheter over guidewire
b.Placement of needle in lumen of vessel (inner cannula removed)
c.Removal of needle (guidewire remains in place)
d.Removal of guidewire
e.Insertion of needle
f.Insertion of guidewire

Most Interventional Radiology Procedures Are Initiated with the Seldinger Technique,which