Department of Radiology, University of Colorado, Aurora, CO, USA.
Department of Radiology, Children's Hospital of Colorado, 13123 E. 16th Ave., B125, Aurora, CO, 80045, USA.
Pediatr Radiol. 2022 Dec;52(13):2498-2509. doi: 10.1007/s00247-021-05209-2. Epub 2021 Nov 4.
Imaging the coronary arteries of children, with their faster heart rates, small vessel size and common inability to lie still or breath-hold, has been a major challenge. With numerous advances in technology, CT examinations can now be performed quickly, often with children free-breathing and with much lower radiation doses than previously. This has led to increased use in children. Care must be taken with technique and choice of electrocardiogram (ECG)-gating technique to obtain adequate imaging for a diagnosis while keeping radiation dose as low as reasonably achievable (ALARA). In this paper, we discuss techniques and tips for CT imaging of the coronary arteries in children, including use of dual-source- and ultrawide-detector CT scanners.
为儿童的冠状动脉成像一直是一个重大挑战，因为他们的心率较快，血管较小，而且通常无法保持静止或屏气。随着技术的众多进步，现在可以快速进行 CT 检查，通常可以让儿童自由呼吸，并且辐射剂量比以前低得多。这导致 CT 检查在儿童中的使用增加。在为诊断获得足够的成像效果的同时，必须注意技术和心电图（ECG）门控技术的选择，将辐射剂量保持在尽可能低的合理水平（ALARA）。本文讨论了儿童冠状动脉 CT 成像的技术和技巧，包括使用双源和超宽探测器 CT 扫描仪。
