Abstract
Preprocedural chest or cardiac imaging for cardiothoracic surgery is focused on the imaging necessary to inform the performance of a surgical procedure after an initial diagnosis and the decision to operate has been made with consideration of patient comorbidities and anesthesia risk. The diverse range of noncoronary cardiac surgeries, coronary cardiac surgeries, and thoracic surgeries each have their own unique surgical techniques, risks, and complications, which can further vary between patients undergoing first time or repeat cardiothoracic surgery. This document reviews the literature for preprocedural chest or cardiac imaging in patients with and without a history of cardiothoracic surgery. The American College of Radiology Appropriateness Criteria are evidence-based guidelines for specific clinical conditions that are reviewed annually by a multidisciplinary expert panel. The guideline development and revision process support the systematic analysis of the medical literature from peer reviewed journals. Established methodology principles such as Grading of Recommendations Assessment, Development, and Evaluation or GRADE are adapted to evaluate the evidence. The RAND/UCLA Appropriateness Method User Manual provides the methodology to determine the appropriateness of imaging and treatment procedures for specific clinical scenarios. In those instances where peer reviewed literature is lacking or equivocal, experts may be the primary evidentiary source available to formulate a recommendation.