Nakagawa Motoo, Hara Masaki, Oshima Hidekazu, Shibamoto Yuta, Mizuno Kantaro, Asano Miki
Department of Radiology, Nagoya City University Graduate School of Medical Sciences, 1 Kawasumi, Mizuho-cho, Mizuhoku, Nagoya 467-8601, Japan.
Radiat Med. 2008 Jul;26(6):337-42. doi: 10.1007/s11604-008-0237-8. Epub 2008 Aug 3.
The pulmonary artery (PA) is involved in most congenital heart diseases; and in these patients it is necessary to evaluate precisely the PA configuration and development. The accuracy of 16 multidetector row computed tomography (16-MDCT) in evaluating the central PA was evaluated.
16-MDCT and angiocardiography (ACG) were performed in 26 patients with various congenital heart diseases aged 7 days to 9 years (median 1.2 years). We reconstructed coronal oblique images along the long axis of the right and left PAs and measured the PA diameter and Nakata's PA index, which were compared with those obtained by ACG.
Correlations between PA diameters [R (2) = 0.80, standard error of the estimate (SEE)=1.3, n=52] and PA indices (R(2)=0.81, SEE=42, n=26) obtained from coronal oblique images and ACG were excellent. Bland-Altman plots showed a mean +/- SD difference of -0.3+/-1.3 mm for the PA diameter and +/-15.1 +/-41.5 for the PA index.
16-MDCT might be useful for evaluating the central PA in patients with congenital heart disease.
肺动脉（PA）参与了大多数先天性心脏病；对于这些患者，精确评估肺动脉的形态和发育情况很有必要。本研究评估了16层螺旋计算机断层扫描（16-MDCT）在评估中央肺动脉方面的准确性。
对26例年龄在7天至9岁（中位年龄1.2岁）的各种先天性心脏病患者进行了16-MDCT和心血管造影（ACG）检查。我们沿着左右肺动脉的长轴重建了冠状斜位图像，并测量了肺动脉直径和中田肺动脉指数，将其与ACG获得的结果进行比较。
从冠状斜位图像和ACG获得的肺动脉直径[R（2）=0.80，估计标准误差（SEE）=1.3，n=52]和肺动脉指数（R（2）=0.81，SEE=42，n=26）之间的相关性非常好。Bland-Altman图显示，肺动脉直径的平均±标准差差异为-0.3±1.3mm，肺动脉指数为±15.1±41.5。
16-MDCT可能有助于评估先天性心脏病患者的中央肺动脉。
