Department of Radiology, Fujita Health University, School of Medicine, 1-98, Dengakugakubo, Kutsukake-cho, Toyoake, Aichi, 470-1192, Japan.
Department of Radiology, Fujita Health University, School of Medicine, 1-98, Dengakugakubo, Kutsukake-cho, Toyoake, Aichi, 470-1192, Japan; Joint Research Laboratory of Advanced Medical Imaging, Fujita Health University School of Medicine, 1-98, Dengakugakubo, Kutsukake-cho, Toyoake, Aichi, 470-1192, Japan.
Eur J Radiol. 2021 Jan;134:109430. doi: 10.1016/j.ejrad.2020.109430. Epub 2020 Nov 21.
To demonstrate the utility of compressed sensing with parallel imaging (Compressed SPEEDER) and AiCE compared with that of conventional parallel imaging (SPEEDER) for shortening examination time and improving image quality of women's pelvic MRI.
Thirty consecutive patients with women's pelvic diseases (mean age 50 years) underwent T2-weighted imaging using Compressed SPEEDER as well as conventional SPEEDER reconstructed with and without AiCE. The examination times were recorded, and signal-to-noise ratio (SNR) was calculated for every patient. Moreover, overall image quality was assessed using a 5-point scoring system, and final scores for all patients were determined by consensus of two readers. Mean examination time, SNR and overall image quality were compared among the four data sets by Wilcoxon signed-rank test.
Examination times for Compressed SPEEDER with and without AiCE were significantly shorter than those for conventional SPEEDER with and without AiCE (with AiCE: p < 0.0001, without AiCE: p < 0.0001). SNR of Compressed SPEEDER and of SPEEDER with AiCE was significantly superior to that of Compressed SPEEDER without AiCE (vs. Compressed SPEEDER, p = 0.01; vs. SPEEDER, p = 0.009). Overall image quality of Compressed SPEEDER with AiCE and of SPEEDER with and without AiCE was significantly higher than that of Compressed SPEEDER without AiCE (vs. Compressed SPEEDER with AiCE, p < 0.0001; vs. SPEEDER with AiCE, p < 0.0001; SPEEDER without AiCE, p = 0.0003).
Image quality and shorten examination time for T2-weighted imaging in women's pelvic MRI can be significantly improved by using Compressed SPEEDER with AiCE in comparison with conventional SPEEDER, although other sequences were not tested.
展示压缩感知并行成像（Compressed SPEEDER）和 AiCE 与传统并行成像（SPEEDER）相比在缩短检查时间和提高女性盆腔 MRI 图像质量方面的效用。
连续 30 例患有女性盆腔疾病的患者（平均年龄 50 岁）接受了 T2 加权成像，使用 Compressed SPEEDER 以及常规 SPEEDER 进行重建，同时使用和不使用 AiCE。记录检查时间，并计算每位患者的信噪比（SNR）。此外，使用 5 分制评分系统评估整体图像质量，由两位读者共识确定所有患者的最终评分。通过 Wilcoxon 符号秩检验比较四组数据集中的平均检查时间、SNR 和整体图像质量。
Compressed SPEEDER 有和没有 AiCE 的检查时间明显短于常规 SPEEDER 有和没有 AiCE 的检查时间（有 AiCE：p<0.0001，无 AiCE：p<0.0001）。Compressed SPEEDER 和带 AiCE 的 SPEEDER 的 SNR 明显优于不带 AiCE 的 Compressed SPEEDER（与 Compressed SPEEDER 相比，p=0.01；与 SPEEDER 相比，p=0.009）。带 AiCE 的 Compressed SPEEDER 和带和不带 AiCE 的 SPEEDER 的整体图像质量明显高于不带 AiCE 的 Compressed SPEEDER（与带 AiCE 的 Compressed SPEEDER 相比，p<0.0001；与带 AiCE 的 SPEEDER 相比，p<0.0001；与不带 AiCE 的 SPEEDER 相比，p=0.0003）。
与传统 SPEEDER 相比，使用带 AiCE 的 Compressed SPEEDER 可显著提高女性盆腔 MRI T2 加权成像的图像质量和缩短检查时间，尽管其他序列未进行测试。
