We aimed to assess the frequency of criss-cross pulmonary arteries and associated intracardiac and vascular anomalies in patients who underwent CT angiography due to suspected congenital heart disease or vascular anomaly at our hospital. We retrospectively evaluated the CT angiography images of 355 patients aged 0–18 years between April 2018 and December 2022. The presence of the criss-cross pulmonary artery anomaly was assessed. Additionally, in patients with a criss-cross pulmonary artery anomaly, accompanying branch pulmonary artery anomalies, aortic arch anomalies, and other vascular-cardiac anomalies were also evaluated. A total of 331 patients’ images were evaluated. Criss-cross pulmonary artery anomaly was present in 57 patients (17.2%). Pulmonary artery branch anomaly was present in 16, aortic arch anomaly in 40 patients (70%) with criss-cross pulmonary artery anomaly, while associated intracardiac pathology (by echocardiography) was detected in 43 patients (75.4%). The frequency of criss-cross pulmonary artery was found to be significantly higher in patients with any aortic arch anomaly (p = 0.01). This study represents one of the largest series of patients with criss-cross pulmonary artery anomalies. Our results suggests that it may be more common than previously recognized and potentially overlooked. It is crucial to consider the presence of this anomaly in patients with complex aortic arch anomalies or cardiac pathologies, as it may have implications for surgical approaches and potential complications. Increased awareness of this anomaly among cardiologists and radiologists is necessary for accurate diagnosis and appropriate management.

我们旨在评估在我们医院因疑似先天性心脏病或血管异常而接受 CT 血管造影的患者纵横交错的肺动脉的频率以及相关的心内和血管异常。我们回顾性评估了 2018 年 4 月至 2022 年 12 月期间 355 名 0-18 岁患者的 CT 血管造影图像。评估了纵横交错的肺动脉异常的存在。此外，在纵横交错的肺动脉异常患者中，还评估了伴随的分支肺动脉异常、主动脉弓异常和其他血管心脏异常。共评估了 331 例患者的图像。纵横交错的肺动脉异常见于 57 例患者 （17.2%）。16 例存在肺动脉分支异常，40 例 （70%） 存在纵横交错肺动脉异常患者的主动脉弓异常，而 43 例患者 （75.4%） 检测到相关的心内病变 （超声心动图）。发现任何主动脉弓异常患者的纵横交错肺动脉的频率显着更高 （p = 0.01）。这项研究代表了最大的纵横交错肺动脉异常患者系列之一。我们的结果表明，它可能比以前认识和可能被忽视的更常见。在患有复杂主动脉弓异常或心脏病变的患者中考虑是否存在这种异常至关重要，因为它可能对手术入路和潜在并发症产生影响。提高心脏病专家和放射科医生对这种异常的认识对于准确诊断和适当管理是必要的。