Application value of assisted compressed sensing combined with deep reconstruction in MR abdominal T2WI
10.3969/j.issn.1002-1671.2025.04.031
- VernacularTitle:智能压缩感知联合深度重建在MR腹部T2WI中的应用价值
- Author:
Yonghui XIAO
1
;
Dongming LIAO
1
;
Ruxin TANG
1
;
Meiru WEN
1
;
Ailin CHEN
1
Author Information
1. 赣州市肿瘤医院影像科,江西 赣州 341000
- Publication Type:Journal Article
- Keywords:
abdomen;
compressed sensing;
deep reconstruction;
magnetic resonance imaging
- From:
Journal of Practical Radiology
2025;41(4):678-682
- CountryChina
- Language:Chinese
-
Abstract:
Objective To analyze the application value of assisted compressed sensing(ACS)combined with deep reconstruction(DR)(ACS+DR)algorithm in MR abdominal T2WI.Methods A total of 60 patients were prospectively selected to undergo three types of respiratory-triggered transverse T2 sequence scans:fast spin echo(FSE),propeller scanning(ARMS),and ACS+DR.Two radiologists independently evaluated the images for respiratory motion artifacts,gastrointestinal peristalsis artifacts,sharpness of intrahepatic vessel and bile duct,lesion clarity,and overall image quality.Additionally,the signal-to-noise ratio(SNR),contrast-to-noise ratio(CNR),and contrast ratio(CR)between lesions and liver parenchyma signal intensity were calculated.Wilcoxon and independent sample Mann-Whitney U tests were used to compare objective scores and subjective evaluations among different groups.Results The scan time for the ACS+DR sequence was 35 s,for the ARMS sequence 180 s,and for the FSE sequence 210 s.The ACS+DR sequence showed superior performance over the other sequences in terms of scan time,respiratory motion artifacts,intrahepatic vessel and bile duct sharpness,lesion clarity,and overall image quality(P＜0.05).Compared with FSE sequence,the ARMS and ACS+DR sequences exhibited higher SNR,CNR,and CR(P＜0.05).The ACS+DR sequence showed better SNR and CNR than the ARMS sequence(P＜0.05);however,there was no significant difference between the two sequences in CR(P＞0.05).No significant difference was found among the three sequences in the number of detected lesions(P＞0.05).Conclusion The ACS+DR reconstruction algorithm for upper abdominal imaging not only ensures high image quality but also significantly improves scan speed,making it valuable for clinical application.
