Title: Initial clinical application of mnltislice spiral CT-coronary angiography
Abstract: Objective: To evaluate the clinical applicability of multislice spiral CT-coronary angiography. Materials and Methods: A total of 45 consecutive patients with known or suspected coronary artery disease were studied with a multislice spiral CT. A volume data set of the heart was acquired(retrospectively ECG-gating, 0.5s rotation, cardiac segment reconstruction algorithm, intravenous contrast agent). Next to retrospective reconstructions of contiguous cross sections at 9 phase window of the cardiac cycle, 3-dimensional reconstructions of coronary arteries were performed. Results: In the 45 patients, for left anterior descending, left circumflex and right coronary artery, optimal image quality was usually achieved in 70% phase window of the cardiac cycle. The proportion of the left main, left anterior descending, left circumflex and right coronary artery that could be evaluated were 93.3%, 80%, 60% and 42.2%, respectively. In the 16 patients with heart rate 60bpm, the proportion of the left anterior descending, left circumflex and right coronary artery that could be evaluated were 93.8%, 75% and 62.5%, respectively. In the 21 patients with heart rate 60-70bpm, the proportion of the left anterior descending, left circumflex and right coronary artery that could be evaluated were 85.7%, 66.7% and 42.9%, respectively. In the 8 patients with heart rate 70bpm, the proportion of the left anterior descending, left circumflex and right coronary artery that could be evaluated were 37.5%, 12.5% and 0, respectively. In the 12 patients with normal coronary artery or stenoses (50% diameter reduction), the mean visualized length of the left anterior descending was 108±15mm; left circumflex, 81±26mm; right coronary artery, 126± 16mm. Conclusions: Multislice spiral CT -coronary angiography permits the detection of coronary artery. It might be a method of choice for patients with coronary artery disease.
Publication Year: 2003
Publication Date: 2003-01-01
Language: en
Type: article
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