Radiology Key

Key Points ▪ Anomalies of coronary ostia and course are more common than appreciated. ▪ Cardiac CT angiography is the preferred test to characterize anomalies of the coronary ostia and…

Key Points ▪ CT coronary angiography (CTA) has been the principal goal of development of cardiac CT (CCT). The momentum of cardiac CT development has been toward both improving image…

Key Point ▪ Cardiac CT angiography is the test of choice to depict the entire course of coronary artery anomalies of termination. The conduit portions of the dilated segments are…

Key Points ▪ Coronary artery bypass grafts are amenable to cardiac CT angiography assessment because they are larger in size than native arteries and are subject to little motion artifact…

Key Points ▪ Although stents are easy to visualize by cardiac CT (CCT), their lumen is difficult to assess. The assessment of patency or restenosis of coronary stents is a…

Key Points ▪ Artifacts are so common as to be universal. ▪ Prevention is the best cure. ▪ Review the study for artifacts before reading it, so as not to…

Key Points ▪ Radiation exposure is an inherent and undeniable risk of cardiac CT. ▪ The favored unit to express radiation exposure per CT scan is the millisievert (mSv). ▪…

Key Points ▪ Contrast enhancement is crucial to optimal CT angiography and to most applications of cardiovascular CT. ▪ Synchronizing contrast delivery to image acquisition for CT angiography requires that…

Cardiac computed tomography (CT), the most highly developed application of x-ray imaging, is currently experiencing more advancement per year than ever in its history—probably more than any other imaging modality…

Key Points ▪ Review of patient and study issues, planning, and preparation are required before the scan is performed. The degree of planning and preparation has a direct impact on…