Normal Databases for the Relative Quantification of Myocardial Perfusion

Abstract Purpose of Review Myocardial perfusion imaging (MPI) with SPECT is performed clinically worldwide to detect and monitor coronary artery disease (CAD). MPI allows an objective quantification of myocardial perfusion at stress and rest. This established technique relies on normal databases to compare patient scans against reference normal limits. In this review, we aim to introduce the process of MPI quantification with normal databases and describe the associated perfusion quantitative measures that are used. Recent Findings New equipment and new software reconstruction algorithms have been introduced, which require the development of new normal limits. The appearance and regional count variations of normal MPI scans may differ between these new scanners and standard Anger cameras. Therefore, these new systems may require the determination of new normal limits to achieve optimal accuracy in relative myocardial perfusion quantification. Accurate diagnostic and prognostic results rivaling those obtained by expert readers can be obtained by this widely used technique. Summary Throughout this review, we emphasize the importance of the normal databases and the need for specific databases relative to distinct imaging procedures. Use of approp...
Source: Current Cardiovascular Imaging Reports - Category: Radiology Source Type: research