在虚拟单色图像中优化手腕肌检测,使用双能量计算机断层扫描
Norimi Nishiyama1, Takanori Masuda2, Junnichi Nakagawa1
1Department of Radiological Technologist, Okayama Saiseikai General Hospital, 2-25, Kokutai-cho, Kita-ku, Okayama-shi, Okayama, 700-8511, Japan.
Japanese journal of radiology
|July 17, 2023
概括
双能量CT (DE-CT) 使用140keV的虚拟单色图像 (VMIs) 最好可视化手腕肌. 与传统的120kVp成像相比,这种DE-CT VMI技术显著改善了CT数量和对比度与噪声比率 (CNR).
科学领域:
- 放射学 放射学是一门学科.
- 医疗成像医学成像
- 计算机断层扫描 (CT) 是一种计算机断层扫描.
背景情况:
- 双能CT (DE-CT) 提供了先进的成像功能.
- 虚拟单色图像 (VMIs) 允许材料分解和图像对比度的优化.
- 精确的手腕肌可视化对于诊断各种肌肉骨疾病至关重要.
研究的目的:
- 用DE-CT生成的VMIs来评估手腕肌的描绘.
- 为了确定手腕肌可视化的最佳VMI能量水平.
- 为了比较DE-CT VMI性能与传统的120kVp成像.
主要方法:
- 在73名患者身上使用Discovery CT750高清CT扫描仪进行了DE-CT扫描.
- 从DE-CT数据中生成了11个VMI,并与传统的120kVp相当的VMI一起.
- 图像分析包括CT数,图像噪声,视觉评分和关键手腕肌的对比噪声比 (CNR).
主要成果:
- 140 keV VMI 显示了手腕肌的最高CT数和CNR.
- 在140 keV VMI 的肌中,与120 kVp VMI 相比,CT 数,CNR 值和视觉评分显著更高 (p < 0.01).
- 140 keV VMI 提供了延伸器波利西斯,延伸器数字体和曲器肌的优越划分.
结论:
- 140 keV代表了DE-CT中VMI在手腕肌可视化方面的最佳能量水平.
- 140 keV的DE-CT显著提高了肌的可见性 (CT号码和CNR),而不是传统的120 kVp成像.
- 这种技术有望改善手腕病理的诊断.
相关概念视频
01:10Computed Tomography
4.6K
Tomography refers to imaging by sections. Computed tomography (CT) is a non-invasive imaging technique that uses computers to analyze several cross-sectional X-rays to reveal minute details about structures in the body.
The technique was invented in the 1970s and is based on the principle that as X-rays pass through the body, they are absorbed or reflected at different levels. In the technique, a patient lies on a motorized platform while a computerized axial tomography (CAT) scanner rotates...
The technique was invented in the 1970s and is based on the principle that as X-rays pass through the body, they are absorbed or reflected at different levels. In the technique, a patient lies on a motorized platform while a computerized axial tomography (CAT) scanner rotates...
4.6K
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
01:17Ultrasonography
4.6K
Ultrasonography is an imaging technique that uses high-frequency sound waves to visualize the body's internal structures. It is a non-invasive and safe procedure that does not involve the use of ionizing radiation, making it widely used in various medical fields. Ultrasonography is used to study heart function, blood flow in the neck or extremities, certain conditions such as gallbladder disease, and fetal growth and development.
During an ultrasonography procedure, a handheld device called...
During an ultrasonography procedure, a handheld device called...
4.6K