Pediatric 320-row cardiac computed tomography using electrocardiogram-gated model-based full iterative reconstruction.
Pediatric 320-row cardiac computed tomography using electrocardiogram-gated model-based full iterative reconstruction.
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DOI：
10.1007/s00247-017-3901-2
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发表时间：
2017-10
影响因子：
2.3
通讯作者：
Abe O
中科院分区：
文献类型：
--
作者：
Shirota G;Maeda E;Namiki Y;Bari R;Ino K;Torigoe R;Abe O
完整的迭代重建算法是可用的，但其在儿科心脏CT中的诊断质量是未知的。比较儿科心脏CT中两种算法（完全迭代重建和混合迭代重建）的成像质量。我们纳入了49名接受心脏CT检查的先天性心脏畸形儿童。我们比较了使用两种算法（全迭代重建和混合迭代重建）重建的图像质量，基于3分制，用于描绘以下解剖结构：房间隔、室间隔、右心房、右心室、左心房、左心室、主肺动脉、升主动脉、主动脉弓（包括动脉导管未闭）、降主动脉、右冠状动脉和左主干。我们使用3分制评价对比增强材料的射束硬化伪影，使用5分制评价整体图像质量。我们还比较了图像噪声，信噪比和对比度噪声比之间的算法。全迭代重建的总体图像质量显著高于混合迭代重建（3.67±0.79 vs. 3.31±0.89，P=0.0072）。对于大多数大体结构，全迭代重建的评价评分高于混合迭代重建。对于射束硬化伪影的存在，完全和混合迭代重建之间没有显著差异。全迭代重建的图像噪声明显较低，而全迭代重建的信噪比和对比度噪声比明显较高。心电门控全迭代重建心脏CT图像诊断质量上级。
Full iterative reconstruction algorithm is available, but its diagnostic quality in pediatric cardiac CT is unknown. To compare the imaging quality of two algorithms, full and hybrid iterative reconstruction, in pediatric cardiac CT. We included 49 children with congenital cardiac anomalies who underwent cardiac CT. We compared quality of images reconstructed using the two algorithms (full and hybrid iterative reconstruction) based on a 3-point scale for the delineation of the following anatomical structures: atrial septum, ventricular septum, right atrium, right ventricle, left atrium, left ventricle, main pulmonary artery, ascending aorta, aortic arch including the patent ductus arteriosus, descending aorta, right coronary artery and left main trunk. We evaluated beam-hardening artifacts from contrast-enhancement material using a 3-point scale, and we evaluated the overall image quality using a 5-point scale. We also compared image noise, signal-to-noise ratio and contrast-to-noise ratio between the algorithms. The overall image quality was significantly higher with full iterative reconstruction than with hybrid iterative reconstruction (3.67±0.79 vs. 3.31±0.89, P=0.0072). The evaluation scores for most of the gross structures were higher with full iterative reconstruction than with hybrid iterative reconstruction. There was no significant difference between full and hybrid iterative reconstruction for the presence of beam-hardening artifacts. Image noise was significantly lower in full iterative reconstruction, while signal-to-noise ratio and contrast-to-noise ratio were significantly higher in full iterative reconstruction. The diagnostic quality was superior in images with cardiac CT reconstructed with electrocardiogram-gated full iterative reconstruction.
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影响因子：
19.7
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