Impact of specific coronary lesions on regional ischemia at single photon emission computed tomography
| Autor: | Alessandro Nudi, Enrica Procaccini, Orazio Schilllaci, Francesco Nudi, Giuseppe Biondi-Zoccai, Annamaria Pinto, Fabrizio Tomai, Ami E. Iskandrian, Giacomo Frati, Francesco Versaci, Giandomenico Neri |
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| Rok vydání: | 2018 |
| Předmět: |
Male
medicine.medical_specialty Ischemia Coronary Artery Disease Single-photon emission computed tomography Coronary Angiography Settore MED/06 Lesion Myocardial perfusion imaging Internal medicine medicine Humans Circumflex Tomography Aged Retrospective Studies Tomography Emission-Computed Single-Photon medicine.diagnostic_test business.industry Coronary Stenosis Myocardial Perfusion Imaging Retrospective cohort study General Medicine Middle Aged medicine.disease Coronary Vessels Stenosis Exercise Test Cardiology Female Emission-Computed medicine.symptom Cardiology and Cardiovascular Medicine business Perfusion Single-Photon |
| Zdroj: | Journal of Cardiovascular Medicine. 19:329-336 |
| ISSN: | 1558-2027 |
| Popis: | AIMS Prior studies using stress myocardial perfusion imaging (MPI), which examined the association between obstructive epicardial coronary disease and presence of myocardial ischemia did not provide a detailed assessment on a regional level. We examined this relationship in a large population of patients in whom the coronary anatomy was defined by invasive coronary angiography. METHODS We retrospectively extracted details on individuals undergoing MPI with single photon emission computed tomography (SPECT) who had coronary angiography within 12 months. A 17-segment model for native coronary anatomy and a 7-region model for myocardial perfusion were used with a dedicated matching algorithm. RESULTS A total of 2564 patients were included, yielding a total of 6279 stenoses matched with 17 948 myocardial regions. From such a cohort, 151 (5.9%) patients had normal perfusion, 1878 (73.2%) had myocardial ischemia (reversible defects), 260 (10.1%) had myocardial necrosis (scar or fixed defects), and 275 (10.7%) had ischemia and necrosis. At per-patient analysis, significant angiographic disease was more common in the ischemic group (prevalence between 69.6 and 80.0%) than other groups. At per-region analysis, abnormal perfusion in the coronary-specific regions varied depending on location of stenosis; it was 96% for left main disease, 81% for proximal left anterior descending disease, 85% for proximal left circumflex disease, and 82% for proximal right coronary artery disease and |
| Databáze: | OpenAIRE |
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