title: Usefulness of integrated dual-source multislice computed tomography and cardiac SPECT in a patient with previous myocardial infarction.
abstract: We present the case of a 62-year-old woman with chest pain and a history of an inferior myocardial infarction for which she underwent stenting in the right coronary artery. Patient was evaluated by cardiac SPECT and the recently introduced dual-source computed tomography (DSCT) system (equipped with two X-ray tubes and two corresponding detectors), in order to detect ischemia associated to stent restenosis. In this case, DSCT demonstrated a very high diagnostic performance to exclude in-stent restenosis, using a dual-energy protocol, and clearly showed subendocardial distribution of the myocardial perfusion defect, in contrast with the transmural defect seen in the SPECT images. As a result, the integration of a dual-energy CT protocol for the evaluation of myocardial blood pool during the assessment of coronary anatomy in this patient, may redefine the diagnostic power of DSCT.
authors.affiliation: Department of Nuclear Cardiology and Cardiac Hospital Ángeles del Pedregal.
authors.forename: Enrique
authors.initials: E
authors.lastname: Vallejo
authors.forename: Hermes
authors.initials: H
authors.lastname: Llarraza
authors.forename: Oscar
authors.initials: O
authors.lastname: Quiroz
authors.forename: Carlos
authors.initials: C
authors.lastname: Rodríguez
authors.forename: José Luis
authors.initials: JL
authors.lastname: Ramírez-Arias
mesh_terms: D057791:Cardiac Imaging Techniques; D005260:Female; D006801:Humans; D008875:Middle Aged; D061330:Multidetector Computed Tomography; D064847:Multimodal Imaging; D009203:Myocardial Infarction / Q000601:surgery; D015899:Tomography, Emission-Computed, Single-Photon