Which one of the following is true regarding CT of the aorta?
A. Helical CT scanners of four detector rows currently offer the optimal possible data acquisition for state of the art reconstruction of the aortaMost centres have at least a 16-detector row of CT scanners. There are reports of excellent quality images of coronary arteries using prospective gating in 320-detector row CT. ECG gating helps reduce motion artefacts, particularly in the ascending aorta and for the coronary arteries. The sensitivities of the new generation of multidetector CT scanners are nearing 100% and specificity is 98–99%. It is recommended to scan from the thoracic inlet to the pelvis, including the femoral and iliac arteries (http://circ.ahajournals. org/content/121/13/e266.full.pdf).