Hello, I had a CT Scan Artery, Left main artery, left anterior artery and left circumflex artery all 10-25 percent blockage. The right coronary artery borders on 70 percent stenosis. the middle and distal segments are normal. Is a cath the correct procedure? How accurate are CTA coronary artery thorax scans? Will a stent be necessary? I had a normal stress test, normal blood pressure, normal EKG. Please let me know. Thank you