CT衍生的纹理分析参数可以区分高衰减囊和固体瘤
D R Ludwig1, Y Thacker1, C Luo2
1Mallinckrodt Institute of Radiology, Washington University School of Medicine, Saint Louis, MO, USA.
Clinical radiology
|August 16, 2023
概括
计算机断层扫描 (CT) 上的纹理特征可以帮助区分良性囊和固体病变. 这种方法可以减少对未确定的病变的进一步随访成像的需要.
科学领域:
- 放射学 放射学是一门学科.
- 医疗成像医学成像
- 在瘤学瘤学.
背景情况:
- 在CT上不确定的病变需要进一步的表征.
- 区分良性囊和固体瘤对于患者管理至关重要.
研究的目的:
- 评估CT纹理特征在区分良性囊和固体病变方面的有效性.
- 评估一个随机森林模型的实用性,包括纹理和临床参数.
主要方法:
- 使用95个纹理和4个临床参数开发了一个随机森林模型.
- 分析了234名患有278个不确定的病变的患者.
- 病变被分类为良性囊或不确定的/固体病变.
主要成果:
- 该模型实现了曲线下的面积为0.71 (95% CI:0.65,0.78).
- 对于歧视性损伤类型,敏感度为81.2%,特异性为38.9%.
- 69%的病变是良性囊,而31%是不确定的或固体的.
结论:
- 使用CT纹理和临床参数的多变量模型显示中等性能.
- 这项研究是对CT图像上的不确定的病变的概念证明.
- 这些发现可能会减少对额外后续成像的需求.
相关概念视频
01:12Internal Anatomy of the Kidney
2.1K
The kidneys are essential organs in the human body, performing a myriad of tasks that maintain homeostasis and overall health.
Anatomical Position and Dimensions
The kidneys are retroperitoneal organs positioned against the posterior abdominal wall on either side of the spine, roughly between the twelfth thoracic and third lumbar vertebrae. Each kidney is typically 10-12 cm long, 5-6 cm wide, and 3-4 cm thick, weighing about 150 grams.
Renal Cortex
The outermost region of the kidney is the...
Anatomical Position and Dimensions
The kidneys are retroperitoneal organs positioned against the posterior abdominal wall on either side of the spine, roughly between the twelfth thoracic and third lumbar vertebrae. Each kidney is typically 10-12 cm long, 5-6 cm wide, and 3-4 cm thick, weighing about 150 grams.
Renal Cortex
The outermost region of the kidney is the...
2.1K
01:27Imaging Studies III: Computed Tomography
28
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...
28
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
01:30Urinary Tract Calculi III: Medical Management
9
The diagnosis of renal calculi involves several imaging techniques, including non-contrast CT scans and ultrasound. These methods help visualize kidney stones, assess their size and location, and detect possible obstructions. Additionally, Measuring urine pH is useful for diagnosing specific stone types, such as struvite (alkaline pH) and uric acid stones (acidic pH). Cystine stones are primarily linked to cystinuria, a genetic condition. A urinalysis helps detect blood in the urine (hematuria)...
9