在接受耳植入的正常解剖学患者中,跨阻抗矩阵模式变异的发生率
Justin Cottrell1, Christine Schremp2, Arianna Winchester2
1Division of Otolaryngology-Head and Neck Surgery, Yale University, CT.
概括
在耳植入物 (CI) 患者中评估了跨阻抗 (TIM) 热图模式. 在接受初级植入的具有正常耳解剖的患者中,观察到TIM热图变异的发病率较低.
科学领域:
- 耳鼻喉科 耳鼻喉科 耳鼻喉科
- 生物医学工程 生物医学工程
- 神经外科 神经外科
背景情况:
- 超阻抗 (TIM) 热图图案可以表明耳植入物电极完整性.
- 了解TIM模式变体对于评估耳植入物结果至关重要.
研究的目的:
- 在正常耳解剖的患者和修复耳植入物 (CI) 病例中应用一个传阻率 (TIM) 热图分类方案.
- 确定TIM模式变异的发病率及其在这些群体中的临床影响.
主要方法:
- 在2020年6月至2024年6月期间,对321个耳植入物 (CI) 进行了单一中心的回顾性审查.
- 在正常耳解剖的患者和在接受修复手术的单独队列中,在手术期间分析了TIM热图模式.
- TIM模式与手术内X射线发现的电极位置相关.
主要成果:
- 在321个植入物中,310个是初级手术,11个是修复手术.
- 86.4%的初级CI手术显示正常的TIM热图,而只有45.5%的修复手术显示正常.
- 一个修改案例呈现了一种新的"双X"TIM模式,这与正常电极位置相对应.
结论:
- 在具有正常耳解剖的耳植入物 (CI) 接受者中,发生过阻抗 (TIM) 热图模式变异的发生率降低.
- TIM热图分析可以提供对电极功能的见解,特别是在修订CI场景中.
相关概念视频
Bus Impedance Matrix
539
Calculating subtransient fault currents for three-phase faults in an N-bus power system involves using the positive-sequence network. When a three-phase short circuit occurs at a specific bus, the analysis uses the superposition method to evaluate two separate circuits.
In the first circuit, all machine voltage sources are short-circuited, leaving only the prefault voltage source at the fault location. The positive-sequence bus impedance matrix can be determined by solving the nodal equations,...
In the first circuit, all machine voltage sources are short-circuited, leaving only the prefault voltage source at the fault location. The positive-sequence bus impedance matrix can be determined by solving the nodal equations,...
539
Prevalence and Incidence
1.9K
In statistical epidemiology and health sciences, two essential metrics—prevalence and incidence—are fundamental for understanding disease dynamics within a population. These measures enable public health officials, epidemiologists, and researchers to assess the burden of diseases, allocate resources effectively, and design impactful public health policies and interventions.
Prevalence indicates the proportion of individuals in a population who have a specific disease or health...
Prevalence indicates the proportion of individuals in a population who have a specific disease or health...
1.9K
Anatomy of the Heart
120.6K
The human heart is made up of three layers of tissue that are surrounded by the pericardium, a membrane that protects and confines the heart. The outermost layer, closest to the pericardium, is the epicardium. The pericardial cavity separates the pericardium from the epicardium. Beneath the epicardium is the myocardium, the middle layer, and the endocardium, the innermost layer. There are four chambers of the heart: the right atrium, the right ventricle, the left atrium, and the left ventricle.
120.6K
Histone Variants at the Centromere
5.1K
Histone variants are the histone proteins with structural and sequence variations. These variants may be regarded as “mutant” forms that replace their canonical histone counterparts in the nucleosomes. Specific post-translational modifications on the histone variants enable further chromatin complexity and regulate tissue-specific gene expression. The most common histone variants are from histone H2A, H2B, and linker histone H1 families. However, several variants of histone H3...
5.1K
Receiver Operating Characteristic Plot
492
A ROC (Receiver Operating Characteristic) plot is a graphical tool used to assess the performance of a binary classification model by illustrating the trade-off between sensitivity (true positive rate) and specificity (false positive rate). By plotting sensitivity against 1 - specificity across various threshold settings, the ROC curve shows how well the model distinguishes between classes, with a curve closer to the top-left corner indicating a more accurate model. The area under the ROC curve...
492
Impedance Combination
758
Consider a string of christmas lights, each bulb symbolizing an impedance element. In this series configuration, the flow of electric current remains uniform across every component. This behavior aligns with Kirchhoff's Voltage Law (KVL), which asserts that the total impedance in such a setup equals the sum of individual impedances—akin to resistors in series. It follows that the voltage from the power source is distributed proportionally among these components, adhering to the voltage...
758


