The tube becomes an artificial vein that can be used repeatedly for needle placement and blood access during hemodialysis.

Ultrasound helps confirm correct needle placement.

Once accurate needle placement is confirmed, the seeds in that needle are released.

For HDR, once the needle placements are confirmed, they are filled with a radioactive material.

Contrast (X-ray dye) is then injected, highlighting the nerve in the canal, confirming correct needle placement.

Computerized pictures help confirm the exact needle placement using digital imaging.

Small amounts of ethanol are injected under ultrasound guided needle placement.

A needle with a special tip is put into the breast tissue, and ultrasound may be used to guide the needle placement.

Ultrasound helps confirm correct needle placement - using sound waves reflected off breast tissue - so the exact location of the abnormality is biopsied.

Computerized pictures help confirm the exact needle placement.