Department of Radiology, Iwate Medical University, Iwate, Japan.
Department of Radiology Service, Iwate Medical University, Iwate, Japan.
Br J Radiol. 2021 Apr 1;94(1120):20201249. doi: 10.1259/bjr.20201249. Epub 2021 Mar 18.
To compare left ventricular (LV) and right ventricular (RV) volume, function, and image quality of a respiratory-triggered two-dimensional (2D)-cine k-adaptive-t-autocalibrating reconstruction for Cartesian sampling (2D kat-ARC) with those of the standard reference, namely, breath-hold 2D balanced steady-state free precession (2D SSFP), in patients with repaired tetralogy of Fallot (TOF).
30 patients (14 males, mean age 32.2 ± 13.9 years) underwent cardiac magnetic resonance, and 2D kat-ARC and 2D SSFP images were acquired on short-axis view. Biventricular end-diastolic volume (EDV) and end-systolic volume (ESV), stroke volume (SV), ejection fraction (EF), and LV mass (LVM) were analysed.
The 2D kat-ARC had significantly shorter scan time (35.2 ± 9.1 s 80.4 ± 16.7 s; < 0.0001). Despite an analysis of image quality showed significant impairment using 2D kat-ARC compared to 2D SSFP cine ( < 0.0001), the two sequences demonstrated no significant difference in terms of biventricular EDV, LVESV, LVSV, LVEF, and LVM. However, the RVESV was overestimated for 2D kat-ARC compared with that for 2D SSFP (73.8 ± 43.2 ml 70.3 ± 44.5 ml, = 0.0002) and the RVSV and RVEF were underestimated (RVSV = 46.2±20.5 ml 49.4 ± 20.4 ml, = 0.0024; RVEF = 40.2±12.7% vs. 43.5±14.0%, = 0.0002).
Respiratory-triggered 2D kat-ARC cine is a reliable technique that could be used in the evaluation of LV volumes and function.
2D cine kat-ARC is a reliable technique for the assessment LV volume and function in patients with repaired TOF.
比较呼吸触发二维（2D）电影k-自适应重建用于笛卡尔采样（2D kat-ARC）与标准参考（即屏气 2D 平衡稳态自由进动（2D SSFP））在法洛四联症（TOF）修复患者中的左心室（LV）和右心室（RV）容积、功能和图像质量。
30 名患者（男 14 名，平均年龄 32.2±13.9 岁）接受心脏磁共振检查，采集短轴视图的 2D kat-ARC 和 2D SSFP 图像。分析双心室舒张末期容积（EDV）和收缩末期容积（ESV）、心搏量（SV）、射血分数（EF）和左心室质量（LVM）。
2D kat-ARC 的扫描时间明显缩短（35.2±9.1s 80.4±16.7s；<0.0001）。尽管图像质量分析显示 2D kat-ARC 与 2D SSFP 电影相比存在显著差异（<0.0001），但两种序列在双心室 EDV、LVESV、LVSV、LVEF 和 LVM 方面没有差异。然而，与 2D SSFP 相比，2D kat-ARC 高估了 RVESV（73.8±43.2ml 70.3±44.5ml，=0.0002），低估了 RVSV 和 RVEF（RVSV=46.2±20.5ml 49.4±20.4ml，=0.0024；RVEF=40.2±12.7% 43.5±14.0%，=0.0002）。
呼吸触发 2D kat-ARC 电影是一种可靠的技术，可用于评估 LV 容积和功能。
2D 电影 kat-ARC 是一种可靠的技术，可用于评估修复后的 TOF 患者的 LV 容积和功能。
