基于深度学习的HASTE序列在胰腺T_(2)WI中的应用价值  

Application value of HASTE sequence based on deep learning in pancreatic T_(2)WI

作　　者：曹达 王传兵[1] 史红媛[1] 郝绍伟 李青[1] CAO Da;WANG Chuan-bing;SHI Hong-yuan;HAO Shao-wei;LI Qing(Department of Radiology,the First Affiliated Hospital with Nanjing Medical University,Nanjing 210029,China;Application Training Department,Siemens Digital Health Technology(Shanghai)Co.,Ltd.,Shanghai 200131,China)

机构地区：[1]南京医科大学第一附属医院放射科,南京210029 [2]西门子数字医疗科技(上海)有限公司应用培训部,上海200131

出　　处：《医疗卫生装备》2025年第3期59-63,共5页Chinese Medical Equipment Journal

摘　　要：目的:探讨基于深度学习(deep learning,DL)的半傅立叶采集单次激发快速自旋回波(half-fourier acquisition single-shot turbo spin echo,HASTE)序列(即DL-HASTE序列)在胰腺T_(2)WI中的应用价值。方法:前瞻性选取2023年2月至7月在某院进行胰腺T_(2)WI扫描时同时采用常规BLADE序列和DL-HASTE序列的41例患者资料。对BLADE序列和DL-HASTE序列图像的整体图像质量、胰腺边缘锐利度、胰管边缘锐利度、胰管显示能力(近段、中段、远段)和病变显著性进行定性评估,并对扫描时间、信噪比(signal to noise ratio,SNR)和对比噪声比(contrast to noise ratio,CNR)进行定量评估。采用SPSS 24.0软件进行统计学分析。结果:在胰管边缘锐利度、胰管显示能力和病变显著性方面,DL-HASTE序列优于BLADE序列,差异有统计学意义(P均<0.05);在胰腺边缘锐利度方面,BLADE序列优于DL-HASTE序列,差异有统计学意义(P<0.05);在整体图像质量方面,DL-HASTE序列与BLADE序列比较差异无统计学意义(P>0.05)。在扫描时间和CNR方面,DL-HASTE序列均优于常规BLADE序列,差异有统计学意义(P<0.05);在SNR方面,DL-HASTE序列与BLADE序列比较差异无统计学意义(P>0.05)。结论:DL-HASTE序列在缩短扫描时间的同时保证了图像质量,适用于呼吸频率不规则的患者。Objective To evaluate the clinical application value of the half-Fourier acquisition single-shot turbo spin echo(HASTE)sequence based on deep learning(DL)in pancreatic T_(2)WI.Methods Data were collected from 41 patients who un-derwent both BLADE and DL-HASTE sequence scans during pancreatic T_(2)WI at some hospital from February to July 2023.Qualitative assessments were made regarding overall image quality,pancreatic edge sharpness,pancreatic duct edge sharp-ness,pancreatic duct visua-lization(proximal,middle and distal segments)and lesion visibility of BLADE-sequence and DL-HASTE-sequence images.Quantitative assessments were carried out in terms of scan time,signal-to-noise ratio(SNR)and contrast-to-noise ratio(CNR).Statistical analyses were performed using SPSS 24.0.Results DL-HASTE sequence behaved significantly better than BLADE in pancreatic duct edge sharpness,pancreatic duct visualization,lesion visibility,scan time and CNR,while worse in panc-reatic edge sharpness(all P<0.05).There were significant differences between DL-HASTE and BLADE sequences in overall image quality and SNR(all P>0.05).Conclusion The DL-HASTE sequence maintains image quality while significantly shor-tening scan time,making it suitable for patients with irregular respiratory rates.

关 键 词：磁共振成像 T_(2)WI 深度学习 脂肪抑制序列 HASTE序列 胰腺疾病 

分 类 号：R318[医药卫生—生物医学工程] R445.2[医药卫生—基础医学] R735.9