乳腺腺的分布和精细化 平均腺体剂量估计 在数字乳腺扫描
Mirjeta Mediji Arifi1,2, Mimoza Ristova1
1Faculty of Natural Sciences and Mathematics, Physics Department, Cyril and Methodius University of Skopje, Skopje, North Macedonia.
Journal of medical physics
|February 13, 2026
概括
这项研究表明,在乳房扫描剂量计算中使用患者特异性的乳房密度 (MGD-Dance-LIBRA) 比标准方法更准确. 这种精细的方法改善了数字造乳镜中的辐射剂量估计.
科学领域:
- 医学物理 医学物理
- 放射学 放射学是一门学科.
- 生物医学成像技术 生物医学成像技术
背景情况:
- 乳房造影中的辐射剂量对于患者的安全至关重要.
- 平均腺体剂量 (MGD) 是乳腺辐射暴露的标准度量.
- 准确的MGD估计对于查乳房镜中的风险评估至关重要.
研究的目的:
- 用三种不同的方法比较MGD估计.
- 评估个性化乳腺密度对MGD计算的影响.
- 确定最准确的MGD估计方法在数字造乳镜.
主要方法:
- 从MGD-Dance-LIBRA,MGD-Dance和MGD-Displayed进行MGD估计的比较.
- MGD-Dance-LIBRA使用了来自LIBRA应用程序的患者特定乳腺密度与Dance的公式.
- MGD-Dance使用了Dance的公式,以标准的50%腺体假设.
主要成果:
- 分析了来自172名妇女的688张乳房图片.
- 平均MGD值:MGD-Dance-LIBRA (2.97mGy),MGD-Dance (2.78mGy),MGD-Displayed (2.81mGy) 这三种类型的MGD均值均为1.7mGy.
- 个性化密度 (平均14%) 显示,标准的50%假设高估了真正的乳腺密度.
结论:
- 个性化乳腺密度估计提高MGD在数字造乳镜的准确性.
- 与标准方法相比,MGD-Dance-LIBRA提供了更精细的计算方法.
- 准确的MGD估计对于个性化的辐射剂量管理至关重要.
相关概念视频
Classification of Epithelial Tissues: Glandular Epithelium
12.4K
The glandular epithelium is made of one or more epithelial cells modified to synthesize and secrete chemical substances. Glandular epithelia can be classified based on cell number. Unicellular glands have individual secretory cells scattered across the epithelial monolayer. In contrast, multicellular glands consist of a hollow tubular duct attached to the cluster of secretory cells located in the deep pockets.
Multicellular glands are formed during early development when epithelial budding...
Multicellular glands are formed during early development when epithelial budding...
12.4K
Drug Excretion: Pulmonary and Glandular Routes
749
Gaseous substances like general anesthetics are absorbed and excreted through the lungs via simple diffusion. This process depends on factors such as pulmonary blood flow, respiration rate, and the substance's solubility. Gaseous anesthetics like nitrous oxide with low blood solubility are excreted rapidly, while compounds like alcohol, with high blood and tissue solubility, are excreted slowly.
Drugs can also be excreted in breast milk, which is crucial for breastfeeding infants. The...
Drugs can also be excreted in breast milk, which is crucial for breastfeeding infants. The...
749
Distributions to Estimate Population Parameter
5.2K
The accurate values of population parameters such as population proportion, population mean, and population standard deviation (or variance) are usually unknown. These are fixed values that can only be estimated from the data collected from the samples. The estimates of each of these parameters are sample proportion, the sample mean, and sample standard deviation (or variance). To obtain the values of these sample statistics, data are required that have particular distribution and central...
5.2K
Drug Dosing in Renal Diseases: Estimation of Glomerular Filtration Rate Based on Serum Creatinine Concentration
239
Glomerular filtration rate (GFR) can be estimated from serum creatinine using the modification of diet in renal disease (MDRD) formula or the chronic kidney disease–epidemiology collaboration (CKD–EPI) equation. Both methods are widely used in clinical practice to assess kidney function and guide treatment decisions.The MDRD equation does not require weight or height measurements and is normalized to the body surface area of 1.73 m², considered the average adult surface area.
239
What are Estimates?
8.9K
It isn't easy to measure a parameter such as the mean height or the mean weight of a population. So, we draw samples from the population and calculate the mean height or mean weight of the individuals in the sample. This sample data acts as a representative measure of the population parameter. These sample statistics are known as estimates.
The estimate for the mean of a sample is denoted by ͞x, whereas the mean of the population is designated as μ. Further, parameters such...
The estimate for the mean of a sample is denoted by ͞x, whereas the mean of the population is designated as μ. Further, parameters such...
8.9K
Dose Size and Dosing Frequency: Determination Methods
329
Determining the optimal dose size and dosing frequency in pharmacotherapy is crucial for achieving therapeutic effectiveness while minimizing adverse effects. This article explores the methodologies employed in determining these parameters, focusing on their significance and interplay to tailor dosing regimens.Dose Size: Dose size refers to the amount of a drug administered in a single dose. It is determined based on the drug's pharmacodynamics and pharmacokinetics properties and...
329


