Compressed sensing and deep learning reconstruction for women's pelvic MRI denoising: Utility for improving image quality and examination time in routine clinical practice
Compressed sensing and deep learning reconstruction for women's pelvic MRI denoising: Utility for improving image quality and examination time in routine clinical practice
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DOI：
10.1016/j.ejrad.2020.109430
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发表时间：
2021-01-01
影响因子：
3.3
通讯作者：
Toyama, Hiroshi
中科院分区：
文献类型：
--
作者：
Ueda, Takahiro;Ohno, Yoshiharu;Toyama, Hiroshi
目的：与传统并行成像（SPEEDER）相比，展示压缩传感并行成像（压缩 SPEEDER）和 AiCE 在缩短检查时间和提高女性盆腔 MRI 图像质量方面的效用。方法：连续 30 名女性盆腔疾病患者（平均年龄 50 岁）接受使用压缩 SPEEDER 以及使用和不使用 AiCE 重建的传统 SPEEDER 进行 T2 加权成像。记录检查时间，并计算每位患者的信噪比（SNR）。此外，整体图像质量采用 5 分评分系统进行评估，所有患者的最终分数由两名读者协商一致确定。通过 Wilcoxon 符号秩检验比较四个数据集的平均检查时间、信噪比和整体图像质量。结果：使用和不使用 AiCE 的压缩 SPEEDER 的检查时间明显短于使用和不使用 AiCE 的传统 SPEEDER（使用 AiCE：p < 0.0001，不使用 AiCE：p < 0.0001）。压缩 SPEEDER 和带有 AiCE 的 SPEEDER 的 SNR 明显优于不带 AiCE 的压缩 SPEEDER（与压缩 SPEEDER 相比，p = 0.01；与 SPEEDER 相比，p = 0.009）。带 AiCE 的压缩 SPEEDER 以及带和不带 AiCE 的 SPEEDER 的整体图像质量显着高于不带 AiCE 的压缩 SPEEDER（与带 AiCE 的压缩 SPEEDER 相比，p < 0.0001；与带 AiCE 的 SPEEDER 相比，p < 0.0001；不带 AiCE 的 SPEEDER，p = 0.0003）。结论：图像质量和缩短检查时间与传统 SPEEDER 相比，使用带有 AiCE 的压缩 SPEEDER 可以显着改善女性盆腔 MRI 中的 T2 加权成像，但尚未测试其他序列。
Purpose: 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.Method: 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.Results: 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).Conclusion: 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.