通过虚拟活检评估膀癌的肌肉侵袭:对双能CT成像的定量参数和经典放射学特征的研究
Mengting Hu1, Wei Wei1, Jingyi Zhang1
1Department of Radiology, First Affiliated Hospital of Dalian Medical University, No.193, Lianhe Road, Xigang District, Dalian, China.
BMC medical imaging
|September 16, 2024
概括
双能量CT (DECT) 定量参数和放射学在预测膀癌 (BCa) 肌肉入侵方面表现有前途. 结合正常化度 (NIC) 和放射学的融合模型实现了良好的诊断能力,特别是对于较小的病变.
科学领域:
- 放射学 放射学是指放射学
- 在瘤学瘤学.
- 医疗成像医学成像
背景情况:
- 膀癌 (BCa) 肌肉入侵对于治疗计划至关重要.
- 准确的术前预测肌肉侵袭仍然是一个挑战.
研究的目的:
- 评估双能CT (DECT) 定量参数和放射学在BCa肌肉侵袭的预测值.
- 开发和评估一个融合模型,将DECT参数和放射学相结合,以改善预测.
主要方法:
- 一项对126名BCa患者的回顾性研究,使用DECT泌尿学.
- 提取了定量DECT参数 (例如,正常化度 - NIC) 和放射性特征.
- 使用ROC曲线和DCA构建和评估了DECT,放射学和融合模型.
主要成果:
- 尼克是肌肉侵袭的独立预测者.
- 最优的多图像放射学模型在测试队列中实现了0.867的AUC.
- 融合模型显示出高预测能力 (AUC 0.893),特别是在<3厘米的病变 (AUC 0.911),并在DCA中表现出卓越的性能.
结论:
- 结合NIC和DECT的放射学,融合模型显示了预测BCa.肌肉侵入性的显著诊断能力.
- 这种方法提供了一个有前途的非侵入性工具,用于在手术前评估膀癌的分期.
相关概念视频
Imaging Studies I: Kidney, Ureter, and Bladder Studies
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...
Imaging Studies III: Computed Tomography
DefinitionComputed Tomography (CT) of the genitourinary (GU) tract is a non-invasive imaging modality that utilizes X-rays and computer processing to generate detailed cross-sectional images of the urinary system, encompassing the kidneys, ureters, bladder, and adjacent structures such as the adrenal glands.PurposeCT scans of the GU tract serve several diagnostic and therapeutic purposes, including:Diagnosis of Urinary Tract Diseases: Detects kidney stones, tumors, cysts, and congenital...
Imaging Studies VI: Voiding Cystourethrography and Cystography
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...


