Accurate measurements are made possible from a finished radiograph when the Macklin Radiographic Ruler is placed under patient anatomy prior to radiographic exposure. Can be used with fluoroscopy to accurately place invasive devices. Suggested range is 40 to 100 kVp. Supplied non-sterile.

Possible applications include:

• Placing vena cava filters.
• Measuring the location of incompetent perforating veins from a fixed external point.
• Assessing in-situ grafts post-op to ensure that all perforating veins have been ligated.
• Measuring the length of bones.
• Locating a stenosis relative to bifurcations or bony landmarks.
• Locating external sphincter prior to prostatic balloon dilation.