多参数磁共振成像中二维和三维 T2 加权成像在使用 VI-RADS 评估膀胱癌肌肉侵犯准确性方面的前瞻性比较

IF 3.8 2区医学 Q1 RADIOLOGY, NUCLEAR MEDICINE & MEDICAL IMAGING

Academic Radiology Pub Date : 2024-12-01 DOI:10.1016/j.acra.2024.07.002

Xinxin Zhang MD , Yichen Wang MD , Xiaojuan Xu MD , Mancang Hu MD , Sicong Wang PhD , Yan Chen MD , Xinming Zhao MD

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引用次数: 0

摘要

原理和目的：T2加权成像（T2WI）是评估膀胱癌分期的重要序列。本研究旨在比较三维（3D）和二维（2D）T2WI在使用膀胱造影报告和数据系统（VI-RADS）诊断膀胱癌肌肉侵犯方面的图像质量和诊断性能：2022年8月至2023年5月期间，101名膀胱癌患者接受了包括三维和二维T2WI在内的多参数磁共振成像检查。两名放射科医生独立审查二维和三维 T2WI，根据 VI-RADS 评分评估图像质量和肌肉侵犯情况。配对 Wilcoxon 符号秩检验评估了二维和三维 T2WI 之间的差异。接受者操作特征曲线下面积（AUC）用于比较诊断性能：与二维 T2WI 相比，三维 T2WI 的总体图像质量得分明显更高，伪影更少。与二维 T2WI 相比，两位读者的三维 T2WI 类别的 AUC 都明显更高（读者 1：0.937 vs. 0.909，p = .02；读者 2：0.923 vs. 0.884，p = .04）。三维 MR 方案的 VI-RADS 评分准确率高于二维 MR 方案（阅读器 1：0.931 vs. 0.921，p = .02；阅读器 2：0.931 vs. 0.911，p = .02）。然而，二维和三维磁共振成像方案在 VI-RADS 类别的 AUC 值上没有明显差异（所有差异均大于 0.05）：结论：在评估膀胱癌肌肉侵犯时，三维 T2WI 的整体图像质量和诊断性能均优于二维 T2WI。然而，三维 T2WI 并没有明显改善 VI-RADS 的诊断性能。

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Prospective Comparison of 2D and 3D T2-Weighted Imaging in Multiparametric MRI for Assessing Muscle Invasion Accuracy Using VI-RADS in Bladder Cancer

Rationale and Objectives

T2-weighted imaging (T2WI) is an essential sequence for assessing the staging of bladder cancer. This study aimed to compare the image quality and diagnostic performance of three-dimensional (3D) and two-dimensional (2D) T2WI in diagnosing muscle invasion of bladder cancer using Vesical Imaging Reporting and Data System (VI-RADS).

Materials and Methods

Between August 2022 and May 2023, 101 participants with bladder cancer underwent multiparametric MRI including 3D and 2D T2WI. Two radiologists independently reviewed 2D and 3D T2WI, evaluating image quality and muscle invasion based on VI-RADS scoring. The paired Wilcoxon signed-rank test assessed the differences between 2D and 3D T2WI. The areas under the receiver operating characteristic curve (AUCs) were utilized to compare the diagnostic performance.

Results

3D T2WI demonstrated significantly superior overall image quality scores with less artifacts than 2D T2WI. Compared to 2D T2WI, 3D T2WI categories had significantly higher AUC for both readers (reader 1: 0.937 vs. 0.909, p = .02; reader 2: 0.923 vs.0.884, p = .04). The VI-RADS score of 3D MR protocol had higher accuracy than 2D MR protocol (reader 1: 0.931 vs. 0.921, p = .02; reader 2: 0.931 vs. 0.911, p = .02). However, there were no significant differences in AUC values of VI-RADS categories between 2D and 3D MR protocol (all p > 0.05).

Conclusion

In assessing muscle invasion of bladder cancer, 3D T2WI exhibited superior overall image quality and diagnostic performance than 2D T2WI. However, 3D T2WI did not significantly improve the diagnostic performance of VI-RADS.

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来源期刊

Academic Radiology 医学-核医学

CiteScore

7.60

自引率

10.40%

发文量

432

审稿时长

18 days

期刊介绍： Academic Radiology publishes original reports of clinical and laboratory investigations in diagnostic imaging, the diagnostic use of radioactive isotopes, computed tomography, positron emission tomography, magnetic resonance imaging, ultrasound, digital subtraction angiography, image-guided interventions and related techniques. It also includes brief technical reports describing original observations, techniques, and instrumental developments; state-of-the-art reports on clinical issues, new technology and other topics of current medical importance; meta-analyses; scientific studies and opinions on radiologic education; and letters to the Editor.