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Figure 1 Coronary Artery Visualization by Dual-Source CT

Dual-source computed tomography (CT) angiography after intravenous injection of contrast agent. Heart rate was 47 beats/min with oral administration of 100 mg atenolol. (A) Transaxial maximum intensity projection shows the proximal left anterior descending coronary artery with a high-grade lesion (arrow). (B) Curved multiplanar reconstruction of the left main and left anterior descending coronary artery (shows: high grade lesion) (arrow). (C) Curved multiplanar reconstruction of the left main and left circumflex coronary artery. No stenoses are present. (D) Curved multiplanar reconstruction of the right coronary artery. No significant lumen reduction is present. (E) Three-dimensional rendering of the heart and coronary arteries. The high-grade lesion in the left anterior descending coronary artery is visualized (arrow). (F) Invasive coronary angiogram of the left anterior descending coronary artery. A subtotal lumen narrowing with only very faint and slow filling of the distal segments is present (arrow). Invasive angiogram of the left circumflex coronary artery (G) and right coronary artery (H) show no evidence of stenoses.