Electron-beam CT in the noninvasive assessment of coronary stent patency
| Autor: | Svenja S. Schimpf, Cornelia Sehnert, Dietrich H.W. Groenemeyer, Heiko Pump, Stephan Moehlenkamp, Rainer Seibel, Raimund Erbel |
|---|---|
| Rok vydání: | 1998 |
| Předmět: |
Adult
Male medicine.medical_specialty medicine.medical_treatment Coronary Disease Coronary Angiography Balloon Coronary circulation Restenosis Coronary Circulation Angioplasty Image Processing Computer-Assisted medicine Humans Vascular Patency Radiology Nuclear Medicine and imaging cardiovascular diseases Coronary stent patency Aged Aged 80 and over business.industry Middle Aged equipment and supplies medicine.disease Radiographic Image Enhancement Coronary arteries medicine.anatomical_structure Female Stents Radiology Tomography X-Ray Computed business Artery |
| Zdroj: | Academic Radiology. 5:858-862 |
| ISSN: | 1076-6332 |
| DOI: | 10.1016/s1076-6332(98)80247-x |
| Popis: | Rationale and Objectives. Coronary artery stents reduce the rate of restenosis in patients who have undergone balloon angioplasty; therefore, the implantation of coronary stents represents an important method in the treatment of coronary stenoses. The authors' purpose was to investigate the usefulness of electron-beam computed tomography (CT) as a noninvasive means of assessing the patency of coronary artery stents in patients who had undergone balloon angioplasty and stent placement. Material and Methods. Electron-beam CT was used to assess stent patency in 177 patients with 285 stents. Contrast material-enhanced multisection flow studies were performed, and the images were evaluated by three investigators and compared with the findings of coronary angiography. Results. Cine loop evaluations and time-attenuation curve analysis led to the correct diagnosis in 167 (94.3%) patients, as confirmed with coronary angiography. Stenoses had occurred in 18 of the 194 vessels with stents, and 14 of these were detected with electron-beam CT. Conclusion. Electron-beam CT appears to be a valuable imaging modality in the noninvasive assessment of stent patency in coronary arteries. |
| Databáze: | OpenAIRE |
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