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<p>To explore the application value of three-dimensional breath-hold gradient spin echo sequence (3D BH-GRASE) in MRCP. We conducted MRCP imaging on 56 patients with pancreatic and biliary diseases via both 3D BH-GRASE and 3D NT-TSE. We compared and statistically analysed the acquisition time, signal-to-noise ratio (SNR), contrast ratio (CR), contrast-to-noise ratio (CNR), and image quality between the two techniques. The mean image acquisition time of 3D BH-GRASE was 16.4&#xa0;s, which was significantly shorter than the (238.12 ± 43.85) seconds required for 3D NT-TSE (<i>p</i> &lt; 0.05). Compared with3D NT-TSE, 3D BH-GRASE achieved superior scores in overall image quality, artifacts, and visualization of the common bile duct, hepatic duct, and gallbladder/cystic duct (<i>p</i> &lt; 0.05), but not in the left/right hepatic ducts. In contrast, 3D BH-GRASE was significantly inferior to 3D NT-TSE in visualizing the left and right secondary hepatic ducts (<i>p</i> &lt; 0.05), although not for the pancreatic duct. The image quality scores of the 3D NT-TSE group combined with the 3D BH-GRASE group were significantly greater than those of the individual sequences (<i>p</i> &lt; 0.05). 3D BH-GRASE addresses image quality concerns arising from motion artefacts in 3D NT-TSE and serves as a valuable supplementary imaging modality.</p>

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The application of a three-dimensional gradient spin‒echo sequence (GRASE) in magnetic resonance cholangiopancreatography

  • 期刊论文

  • 出版模式：

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  • 发表日期：

    2026年1月16日

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  • Xiao-yu Chen,
  • He-ping Deng,
  • Xue-Gang Yang,
  • Min Wang,
  • Peng Zhou,
  • Ya-kun He

摘要

To explore the application value of three-dimensional breath-hold gradient spin echo sequence (3D BH-GRASE) in MRCP. We conducted MRCP imaging on 56 patients with pancreatic and biliary diseases via both 3D BH-GRASE and 3D NT-TSE. We compared and statistically analysed the acquisition time, signal-to-noise ratio (SNR), contrast ratio (CR), contrast-to-noise ratio (CNR), and image quality between the two techniques. The mean image acquisition time of 3D BH-GRASE was 16.4 s, which was significantly shorter than the (238.12 ± 43.85) seconds required for 3D NT-TSE (p < 0.05). Compared with3D NT-TSE, 3D BH-GRASE achieved superior scores in overall image quality, artifacts, and visualization of the common bile duct, hepatic duct, and gallbladder/cystic duct (p < 0.05), but not in the left/right hepatic ducts. In contrast, 3D BH-GRASE was significantly inferior to 3D NT-TSE in visualizing the left and right secondary hepatic ducts (p < 0.05), although not for the pancreatic duct. The image quality scores of the 3D NT-TSE group combined with the 3D BH-GRASE group were significantly greater than those of the individual sequences (p < 0.05). 3D BH-GRASE addresses image quality concerns arising from motion artefacts in 3D NT-TSE and serves as a valuable supplementary imaging modality.