Detection of angiographically significant coronary obstruction using resting transthoracic coronary Doppler echocardiography
| Autor: | Lorena Romina Balletti, Gerardo Manuel Marambio, Martin Hernán Medawar, Maria Fernanda Gonda, Juan Gagliardi, Alberto Cozzarin, Tomás F. Cianciulli, Daniel Ernesto Ferreiro |
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| Rok vydání: | 2017 |
| Předmět: |
Male
Coronary angiography medicine.medical_specialty Systole Diastole Coronary stenosis 030204 cardiovascular system & hematology Doppler echocardiography Coronary Angiography Sensitivity and Specificity 030218 nuclear medicine & medical imaging 03 medical and health sciences 0302 clinical medicine Internal medicine medicine Humans Radiology Nuclear Medicine and imaging Aged medicine.diagnostic_test business.industry Ultrasound Coronary Stenosis Middle Aged medicine.disease Coronary Vessels Echocardiography Doppler Color Stenosis medicine.anatomical_structure Echocardiography Cardiology Feasibility Studies Female business Blood Flow Velocity Artery |
| Zdroj: | Journal of Echocardiography. 16:139-146 |
| ISSN: | 1880-344X 1349-0222 |
| DOI: | 10.1007/s12574-017-0366-0 |
| Popis: | Transesophageal Doppler echocardiography has shown that significant stenosis can be detected based on the presence of aliasing with color Doppler in the stenotic area. The study aimed to assess the detection of angiographically significant coronary stenosis (ASCS) by analyzing the characteristics and velocities of resting coronary artery flow (RCF) using transthoracic coronary Doppler echocardiography (TCDE). TCDE was performed before diagnostic coronary angiography (CA). The following velocities were measured: peak systolic velocity (PSV), peak diastolic velocity (PDV), mean diastolic velocity (MDV), end-diastolic velocity (EDV), and distal to proximal velocity ratios. Twenty-five patients were included, and CA revealed ASCS in 14 patients. With TCDE, the proximal and distal portions of the left anterior descending artery (LAD) could be measured in 84% of cases. Among 12 patients with ASCS in the distal left main coronary artery (LMCA) or proximal or mid LAD, proximal and distal flow could be measured in ten patients. Proximal diastolic velocities were higher in patients with ASCS in the LAD, and a distal MDV/proximal MDV ratio |
| Databáze: | OpenAIRE |
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