Comparative study of Fast BLADE sequence and conventional BLADE sequence in liver T2WI imaging
10.3760/cma.j.cn431274-20250114-00055
- VernacularTitle:Fast BLADE序列与常规BLADE序列在肝脏T2WI成像中的对比研究
- Author:
Danni WANG
1
;
Xingrui DU
1
;
Guijin LI
1
;
Ling YANG
1
Author Information
1. 重庆大学附属人民医院(重庆市人民医院)放射科，重庆 401147
- Publication Type:Journal Article
- Keywords:
Magnetic resonance imaging;
BLADE sequences;
Liver;
Acquisition time;
Image quality
- From:
Journal of Chinese Physician
2025;27(9):1361-1365
- CountryChina
- Language:Chinese
-
Abstract:
Objective:To qualitatively and quantitatively compare and evaluate the application of the Fast BLADE sequence and the conventional BLADE sequence in 3T magnetic resonance (MR) liver T2-weighted imaging (T2WI).Methods:A total of 72 patients who underwent liver MR examination at the Chongqing People′s Hospital from December 2023 to July 2024 were selected. All patients underwent liver magnetic resonance imaging (MRI) scanning using a 3T MR scanner, including both the Fast BLADE sequence and the conventional BLADE sequence. The total imaging time of the two sequences was recorded. Two observers used a " 5-point scale" to evaluate the overall image quality, motion artifacts, and radial artifacts of the Fast BLADE and conventional BLADE sequences respectively, and measured the image signal-to-noise ratio (SNR) at the same spatial position in the two groups of images. Statistical analysis was used to evaluate the differences in imaging time and image quality between the Fast BLADE sequence and the conventional BLADE sequence in liver T2WI imaging.Results:The imaging time of the Fast BLADE sequence in liver T2WI imaging was significantly shorter than that of the conventional BLADE sequence ( P<0.01), and the image SNR was significantly higher than that of the conventional BLADE sequence ( P<0.01). The overall image quality, motion artifact reduction, and radial artifact reduction of the Fast BLADE sequence were all superior to those of the conventional BLADE sequence (all P<0.05). The Kappa coefficients for the consistency of the two observers′ evaluations on overall image quality, motion artifacts, and radial artifacts were 0.78, 0.66, and 0.71 respectively. Conclusions:The Fast BLADE sequence can shorten the imaging time and provide images with higher SNR, and thus can replace the conventional BLADE sequence for liver T2WI imaging.
