Agency for Healthcare Research and Quality (AHRQ)

Disclosures

March 01, 2012

In This Article

Comparison of Recommendations: IMT, ABI, and Calcium Scoring Methods

ACCF/AHA (2010)

Measurement of Carotid IMT

Class II a

Measurement of carotid artery IMT is reasonable for cardiovascular risk assessment in asymptomatic adults at intermediate risk. Published recommendations on required equipment, technical approach, and operator training and experience for performance of the test must be carefully followed to achieve high-quality results (Stein et al., 2008). (Level of Evidence: B)

Measurement of ABI

Class II a

Measurement of ABI is reasonable for cardiovascular risk assessment in asymptomatic adults at intermediate risk (Ankle Brachial Index Collaboration et al., 2008). (Level of Evidence: B)

Calcium Scoring Methods

Class II a

Measurement of CAC is reasonable for cardiovascular risk assessment in asymptomatic adults at intermediate risk (10% to 20% 10-year risk) (Detrano et al., 2008; Greenland et al., 2004). (Level of Evidence: B)

Class II b

Measurement of CAC may be reasonable for cardiovascular risk assessment in persons at low to intermediate risk (6% to 10% 10-year risk) (Greenland et al., 2004; Lakoski et al., 2007; Taylor et al., 2005). (Level of Evidence: B)

Class III: No Benefit

Persons at low risk (<6% 10-year risk) should not undergo CAC measurement for cardiovascular risk assessment (Detrano et al., 2008; Greenland et al., 2004; Budoff et al., 2009). (Level of Evidence: B)

NACB (2009)

No recommendations provided.

USPSTF (2009)

The USPSTF concludes that the current evidence is insufficient to assess the balance of benefits and harms of using the nontraditional risk factors discussed in this statement* to screen asymptomatic men and women with no history of CHD to prevent CHD events. This is an I statement.

*hs-CRP, ABI, leukocyte count, fasting blood glucose level, periodontal disease, carotid IMT, CAC score on EBCT, homocysteine level, and lipoprotein(a) level

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