黄金角辐射稀平平行 (GRASP) 和传统的三维动态对比增强MRI中的传统卡特西安采样对比:膀癌的初步研究
Yoshiko Ueno1, Keitaro Sofue2, Tsutomu Tamada2,3
1Department of Radiology, Kobe University Graduate School of Medicine, 7-5-2, Kusunoki-Cho, Chuo-Ku, Kobe, Hyogo, 650-0017, Japan. yoshiu@med.kobe-u.ac.jp.
Japanese journal of radiology
|August 1, 2024
概括
黄金角射线短平行 (GRASP) MRI显著改善了膀癌检测的图像质量和工作流程. 与卡特西安核磁共振相比,GRASP显示出更好的诊断准确性和读者间一致性的趋势.
科学领域:
- 放射学 放射学是一门学科.
- 医疗成像医学成像
背景情况:
- 3D动态对比增强型MRI (DCE-MRI) 对于评估肌肉侵入性膀癌 (MIBC) 是至关重要的.
- 图像质量和诊断准确性对于有效的MIBC评估至关重要.
研究的目的:
- 为了比较3D DCE-MRI的图像质量,读者间协议和诊断能力,使用金角辐射短线平行 (GRASP) 技术与MIBC的标准卡特西安采样相比.
- 为了评估GRASP重建的直角膀瘤切片的有效性.
主要方法:
- 68名膀癌患者接受了3次特斯拉DCE-MRI (34次GRASP,34次笛卡尔).
- 四名放射科医生进行了定性评估 (图像质量,文物,显眼性) 和定量SNR/CNR测量.
- 计算了VI-RADS DCE分数和读者间协议的接收器操作特征曲线 (AUC) 下的面积.
主要成果:
- 格拉斯表现出优越的整体图像质量 (4对3),瘤显著性 (5对3),SNR (38.2对19.0),CNR (7.9对6.0),和较少的动作文物 (5对3) 与卡特西安相比 (P<0.0001).
- GRASP显示MIBC的AUC较高 (0.92比0.88) 的趋势,并且改善了读者之间的一致性 (kappa 0.70比0.63).
结论:
- 用GRASP重建的3D DCE-MRI图像为膀瘤评估提供了更好的图像质量和工作流效率.
- 在MIBC检测中,GRASP显示了与卡特西安核磁共振相比,改善诊断能力和读者之间的协议的潜力.
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