使用囊泡成像-报告和数据系统和明显扩散系数区分膀癌的阶段
Wei Liu1,2, Ruchuan Chen1,3, Xiaohang Liu1,2
1Department of Radiology, Fudan University Shanghai Cancer Center, Shanghai, China.
Quantitative imaging in medicine and surgery
|August 15, 2023
概括
多参数MRI,使用膀成像报告和数据系统 (VI-RADS) 和明显扩散系数 (ADC) 组图分析,准确地区分早期膀癌 (BC) 和晚期癌症. 将VI-RADS与ADC直方图参数结合起来,可以提高BC分期的诊断性能.
科学领域:
- 放射学 放射学是一门学科.
- 在瘤学瘤学.
- 医疗成像医学成像
背景情况:
- 精确的手术前T分期对于膀癌 (BC) 治疗和预后至关重要.
- 目前的BC手术前T分期方法存在挑战.
- 多参数磁共振成像 (mpMRI) 显示了提高BC分期精度的潜力.
研究的目的:
- 为了评估膀成像报告和数据系统 (VI-RADS) 和体积明显扩散系数 (ADC) 基因组参数的诊断性能.
- 使用mpMRI,区分T2阶段及以下 (≤T2) 与T3阶段及以上 (≥T3) 的BCs.
- 在BC分期中评估VI-RADS和ADC直方图参数的综合值.
主要方法:
- 包括62名病理确诊的BC.患者.
- 放射科医生使用VI-RADS系统对瘤进行了评分.
- 从ADC地图中提取了体积计ADC历史图参数.
- 统计分析包括Cochran-Armitage和曼-惠特尼U测试.
- 使用接收机操作特征 (ROC) 曲线分析来评估预测功率.
主要成果:
- 与≥T3阶段BC相比,≤T2阶段BC的ADC组图参数 (最小,平均,中位,最大,百分位) 显着更高.
- 倾斜性和曲性呈现出相反的趋势.
- VI-RADS实现了曲线下的面积 (AUC) 为0.834.
- 结合VI-RADS与曲性和曲性,AUC (0.915) 显著高于单独使用VI-RADS.
结论:
- 在VI-RADS和体积ADC组图分析中,有效地区分了≤T2和≥T3阶段的BC.
- 卷度ADC直方图分析提供了补充信息,以提高VI-RADS的性能.
- 这些mpMRI技术为手术前的BC分期提供了宝贵的工具.
相关概念视频
01:22Imaging Studies VI: Voiding Cystourethrography and Cystography
32
Voiding Cystourethrography (VCUG) and Cystography are specialized radiographic procedures used to examine the structure and function of the bladder and urethra.Voiding Cystourethrography (VCUG)A Voiding Cystourethrogram (VCUG) is a diagnostic imaging procedure that assesses the anatomy and function of the lower urinary tract. It focuses on the bladder, bladder neck, and urethra, helping detect abnormalities such as vesicoureteral reflux (VUR)—the backward or reverse flow of urine into the...
32
01:28Imaging Studies I: Kidney, Ureter, and Bladder Studies
25
Kidney, Ureter, and Bladder (KUB) StudiesKidney, Ureter, and Bladder (KUB) studies are standard diagnostic imaging procedures used to assess the anatomy of the urinary system. They are commonly utilized for patients experiencing abdominal pain or urinary symptoms. By using a simple X-ray of the abdomen, KUB studies can reveal structural and pathological abnormalities within the kidneys, ureters, and bladder. These studies are particularly valuable in diagnosing kidney stones, urinary...
25
01:22Imaging Studies V: Intravenous Urography and Retrograde Pyelography
57
IntroductionIntravenous Urography (IVU) and Retrograde Pyelography (RP) are important diagnostic imaging techniques used to evaluate the urinary system. These methods help identify structural abnormalities, obstructions, and functional issues in the kidneys, ureters, and bladder. Both procedures use iodine-based contrast media to enhance the visibility of urinary tract structures on X-ray images, though they differ in their methods and indications.1. Intravenous Urography (IVU)Intravenous...
57
01:27Imaging Studies IV: Magnetic Resonance Imaging
27
Introduction:Magnetic Resonance Imaging, or MRI, can include a specialized imaging technique of the urinary system known as Magnetic Resonance Urography (MRU). This radiation-free technique uses strong magnetic fields and radio waves to produce detailed images with the help of a computer. MRU is particularly effective for visualizing fluid-filled structures like the kidneys, ureters, and bladder.Applications of MRI in the Genitourinary SystemKidneys and Ureters: MRI detects tumors, cysts,...
27
01:24Imaging Studies II: Ultrasonography
29
IntroductionUltrasonography, or renal ultrasound, is a noninvasive medical imaging technique that uses high-frequency sound waves to visualize the kidneys, ureters, bladder, and surrounding tissues.Indications for Urinary System UltrasonographyUrinary system ultrasonography is indicated in various clinical scenarios, such as:Kidney Stones (Urolithiasis): To detect and monitor the size and presence of kidney or urinary tract stones.Hydronephrosis: To assess the dilation of the renal pelvis and...
29