By Marc Dewey (auth.)
Cardiac computed tomography (CT) has develop into a hugely actual diagnostic modality that maintains to draw expanding recognition. This generally illustrated publication goals to help the reader in integrating cardiac CT into day-by-day scientific perform, whereas additionally reviewing its present technical prestige and purposes. transparent information is equipped at the functionality and interpretation of imaging utilizing the newest expertise, which deals higher insurance, higher spatial answer, and quicker imaging whereas additionally offering practical information regarding cardiac illnesses. the explicit positive aspects of scanners from all 4 major owners, together with those who have only in the near past develop into to be had, are offered. one of the wide selection of purposes and concerns mentioned are coronary calcium scoring, coronary artery skip grafts, stents, and anomalies, cardiac valves and serve as, congenital and purchased middle disorder, and radiation publicity. Upcoming scientific makes use of of cardiac CT, reminiscent of hybrid imaging, training and follow-up after valve substitute, electrophysiology purposes, myocardial perfusion and fractional movement reserve evaluation, and plaque imaging, also are explored.
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Extra resources for Cardiac CT
A b In case of RCA dominance, at least one right posterolateral branch (segment 4b) is present and supplies the inferolateral myocardial segments. If the left coronary artery is dominant, the distal LCX ends as the posterior descending coronary artery (segment 4a). 3 Coronary Arteries Frequent Coronary Artery Variants In addition to the variation in normal anatomy caused by left or right dominance, there are other variations, such as myocardial bridging and anomalous origin, as well as variability in the course of the coronary arteries.
Measurement of the aortic outflow tract dimensions are important to assess suitability, select the optimal device size, predict procedural outcome. In addition, imaging of the peripheral vasculature is important to select the most optimal vascular access (Chap. 17). 8 Ventricular Function, Myocardial Infarction, and Valvular Heart Disease The clinical mainstay of cardiovascular imaging is echocardiography. The technique is quick, inexpensive and can be performed at the bedside. When an acceptable echocardiographic window is available, echocardiography is the first choice for functional imaging of the heart.
2. 3. 4. 5. 6. 7. a Longer duration of the occlusion Absence of antegrade collateral ﬁlling Blunt rather than a tapered proximal stump Occlusion length >15 mma Severe calciﬁcationa Side branch at the occlusion site Vessel tortuosity proximal to the occlusion Predictive value conﬁrmed by CT (Fig. 1). Severe calcification and long occlusion predict a poorer outcome of revascularization procedures. These images may also be integrated in advanced catheter registration and navigation systems. In patients undergoing electrophysiological procedures, three-dimensional imaging of the cardiac chambers is performed to assess (abnormal) anatomy, select the most optimal technique and equipment, avoid complications (by localization of the esophagus), guide catheters, and record proceedings (Chap.
Cardiac CT by Marc Dewey (auth.)