对于小内性回声性脏群体的良性预测因素
Anthony F Chen1, Mary Le Dinh Getz1, John P McGahan2
1Department of Radiology, UC Davis Health SOM, Sacramento, California, USA.
概括
在女性中,小动脉髓脂瘤 (AML) 往往具有特定的超声波特征. 区分这些良性瘤与小细胞癌 (RCC) 对于适当的患者管理至关重要.
科学领域:
- 脏成像 - 脏成像
- 在瘤学瘤学.
- 诊断性的超声波检查
背景情况:
- 从细胞癌 (RCCs) 区分小动脉髓脂瘤 (AMLs) 可能是具有挑战性的.
- 内质群体需要仔细评估以确定它们的性质.
研究的目的:
- 确定区分小 (<3厘米) 内性AML与内性RCC的人口统计和声学特征.
- 为了提高小质的成像诊断准确度.
主要方法:
- 对具有内性脏AML和RCCs的患者的HIPAA合规数据的回顾性审查.
- 两组的人口和超声波特征的比较.
- 在CT/MRI上通过宏观脂肪证实AML;在病理上证实RCC.
主要成果:
- 在AML中女性占主导地位 (57/66) 与RCC相比 (10/28).
- AML比RCC (平均23.4 x 22.1毫米) 显著小 (平均11.0 x 9.3毫米). AML比RCC (平均23.4 x 22.1毫米) 显著小.
- 圆形状和回声边缘在AML中更为常见,而圆形状和缺乏回声边缘在RCC中更为常见.
结论:
- 一个女性患者内性回声质中的小尺寸,圆形状和回声边缘表明AML超过RCC.
- 这些超声波特征可以帮助临床管理决策小质的脏.
相关概念视频
Confirmation Biases
The confirmation bias is the tendency to focus on information that confirms our existing beliefs and ignore information that is inconsistent with our expectations. For example, if you think that your professor is not very nice, you notice all of the instances of rude behavior exhibited by the professor while ignoring the countless pleasant interactions he is involved in on a daily basis. Have you ever fallen prey to the confirmation bias, either as the source or target of such bias?
In- and Out-Groups
People all belong to a gender, race, age, and social economic group. These groups provide a powerful source of our identity and self-esteem (Tajfel & Turner, 1979) and serve as our in-groups. An in-group is a group that we identify with or see ourselves as belonging to.
Factors Affecting the Risk of Infection
The hosts' susceptibility to infection depends on several factors. The integrity of the skin and mucous membranes helps protect the body against microbial attacks. When the skin is altered, the chance of infection, limb loss, and even death increases.
The integrity and count of the white blood cells help the body resist pathogens and fight infection. When impaired, it reduces the body's resistance to pathogens. The acidic pH levels of the gastrointestinal, genitourinary tracts, and skin create...
The integrity and count of the white blood cells help the body resist pathogens and fight infection. When impaired, it reduces the body's resistance to pathogens. The acidic pH levels of the gastrointestinal, genitourinary tracts, and skin create...
Expected Frequencies in Goodness-of-Fit Tests
A goodness-of-fit test is conducted to determine whether the observed frequency values are statistically similar to the frequencies expected for the dataset. Suppose the expected frequencies for a dataset are equal such as when predicting the frequency of any number appearing when casting a die. In that case, the expected frequency is the ratio of the total number of observations (n) to the number of categories (k).
Prediction Intervals
The interval estimate of any variable is known as the prediction interval. It helps decide if a point estimate is dependable.
However, the point estimate is most likely not the exact value of the population parameter, but close to it. After calculating point estimates, we construct interval estimates, called confidence intervals or prediction intervals. This prediction interval comprises a range of values unlike the point estimate and is a better predictor of the observed sample value, y.
The...
However, the point estimate is most likely not the exact value of the population parameter, but close to it. After calculating point estimates, we construct interval estimates, called confidence intervals or prediction intervals. This prediction interval comprises a range of values unlike the point estimate and is a better predictor of the observed sample value, y.
The...
Facial Feedback Hypothesis
Charles Darwin proposed that facial expressions are an evolutionary adaptation for communication. He argued that these expressions are not influenced by culture but are universal across species. For example, a snarling expression with exposed teeth signals a threat in many animals, including humans. Darwin also suggested that displaying an emotion can intensify the feeling. Smiling, for example, could enhance one's sense of happiness. This idea laid the foundation for understanding the role of...


