The introduction of health-care technologies into medical practice is happening at a breathtaking pace. Some of these technologies are real advances and provide great benefits to patients, but many others offer only slight improvements despite substantially increasing health-care costs. Unfortunately, when faced with a decision to implement new technologies in their practices, many practitioners are often at a loss in determining the relative strengths and weaknesses of their options. When perusing the literature on reports about new technologies, it is frequently only case series or studies aimed at obtaining Food and Drug Administration approval that one can find, but no proper comparisons with conventional and established approaches. Effectiveness comparisons are often made with historical controls, basically comparing apples to oranges.