Usually performed for pre-op CABG

Scanning planes:  Transverse images from GSV in groin scanning distally.  Use split screen, without and with compression.  Use calipers to delineate vessel.

• Three images with transverse measurements above knee (label AK) without and with compression
• Three  images with transverse measurements below knee (label BK) without and with compression
• Measure the depth of the GSV at the distal thigh/just above knee and in the upper calf/just below knee (record on worksheet)
• Draw a sagittal mark on the distal thigh area marking the GSV for the surgeon
• If patient has had vessel harvested previously, include an image on the study and document on worksheet
• Outer-to-outer measurements