In a major undertaking, the PCI and CABG guidelines were written concurrently with input from the STEMI guideline writing committee and additional collaboration with the SIHD guide- line writing committee, allowing greater collaboration be- tween these writing committees on revascularization strate- gies in patients with CAD (including unprotected left main PCI, multivessel disease revascularization, and hybrid proce- dures).9,10 Section 5 is included as published in both the PCI and CABG guidelines in its entirety. In addition to cosponsoring practice guidelines, the ACCF has sponsored appropriate use criteria (AUC) documents for imaging testing, diagnostic catheterization, and coronary revascularization since 2005.11 16 Practice guideline recom- mendations are based on evidence from clinical and obser- vational trials and expert consensus; AUCs are complemen- tary to practice guidelines and make every effort to be concordant with their recommendations. In general, the rec- ommendations in this guideline and current AUCs are con- sistent. Apparent discrepancies usually reflect differing frameworks or imaging methodologies. Moreover, where guidelines leave gaps (ie, unaddressed applications), AUCs can provide additional clinical guidance based on the best Table 3. 