Is CMS's Requirement for Age-Specific Clinical Evidence Before Considering Coverage for CT Colonography Reasonable and Necessary?

References 

1. Centers for Medicare and Medicaid Services. Decision memo for screening computed tomography colonography (CTC) for colorectal cancer (CAG-00396N). http://www.cms.hhs.gov/mcd/viewdecisionmemo.asp?id=220Accessed June 24, 2009
2. Dhruva SS, Phurrough SE, Salive ME, Redberg RF. CMS's landmark decision on CT colonography—examining the relevant data. N Engl J Med http://content.nejm.org/cgi/content/full/NEJMp0904408Accessed June 24, 2009
3. Lieberman D, Moravec M, Holub J, Michaels L, Eisen G. Polyp size and advanced histology in patients undergoing colonoscopy screening: implications for CT colonography. Gastroenterology. 2008;135:1100–1105
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4. Centers for Medicare and Medicaid Services. Appendix A: general methodological principles of study design. http://www.cms.hhs.gov/determinationprocess/downloads/id195c.pdfAccessed June 24, 2009
5. Dhruva SS, Redberg RF. Variations between clinical trial participants and Medicare beneficiaries in evidence used for Medicare national coverage decisions. Arch Intern Med. 2008;168:136–140
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6. US Preventive Services Task Force. Screening for colorectal cancer: U.S. Preventive Services Task Force recommendation statement. Ann Intern Med. 2008;149:627–637
7. Neiman HL, Gore RM, Weinreb JC. Re: NCA tracking sheet for screening computed tomography colonography (CTC) for colorectal cancer (CAG-00396N). http://www.acr.org/Hidden/Economics/FeaturedCategories/Coverage/nmcd/CTCCommentLettertoCMS.aspxAccessed June 24, 2009