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在诊断前列腺癌时,用反向极性梯度编码DWI的多重敏感度的改善值:与单射DWI和MUSE DWI进行比较研究

Wenjing Zhao¹, Shiying Ju¹, Hongyang Yang¹

¹Department of Radiology, Weifang People's Hospital, Weifang, Shandong, China (W.Z., S.J., H.Y., Q.W., L.F., W.W.).

Academic radiology

|October 1, 2023

概括

具有逆极度梯度 (RPG-MUSE) 的多重感应编码通过减少文物和提高图像清晰度,显著提高前列腺扩散加权成像 (DWI) 质量. 这种先进的技术显示了改善前列腺癌诊断的潜力.

科学领域:

放射学和成像科学放射学和成像科学
医学物理医学物理
瘤成像学成像学

背景情况:

扩散权重成像 (DWI) 对于前列腺癌诊断至关重要.
像单拍回声平面成像 (ssEPI) 这样的标准DWI技术可能会遭受文物和几何扭曲.
多重感应编码 (MUSE) 已被开发来提高DWI质量,但仍在寻求进一步的改进.

研究的目的:

评估多重敏感编码与反向极性梯度 (RPG-MUSE) 在提高前列腺DWI质量的有效性.
为了比较RPG-MUSE DWI的诊断性能与常规的MUSE和ssEPI DWI用于前列腺癌检测.

主要方法:

73名前列腺疾病患者使用RPG-MUSE,MUSE和ssEPI序列进行DWI.
放射科医生对图像质量进行了定性分析 (文物,细节,边缘清晰度).
定量分析包括信号与噪声比 (SNR),对比与噪声比 (CNR),几何扭曲和明显扩散系数 (ADC) 值.

主要成果:

与MUSE和ssEPI (P <0.05) 相比,RPG-MUSE DWI展示了优越的文物最小化,解剖细节和边缘度.
与其他序列相比,RPG-MUSE的SNR和CNR显著更高,几何扭曲率更低 (P < 0.05).
RPG-MUSE和MUSE的诊断疗效明显高于ssEPI (P < 0.017),ADC值没有差异.

结论:

在前列腺DWI中,RPG-MUSE有效地减少了文物和几何扭曲.
该技术可以提高图像质量 (SNR,CNR,清晰度),而不会改变ADC测量.
RPG-MUSE有望提高前列腺癌评估的诊断准确性.

关键词:

扩散权重成像技术的使用.多重复杂的灵敏度编码.前列腺前列腺前列腺反向极性梯度的梯度是相反的.

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