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相关概念视频

The Thyroid Gland01:23

The Thyroid Gland

The thyroid gland is a small, butterfly-shaped gland located in the neck and covers the anterior surface of the trachea. The gland has two lateral lobes connected by a thin tissue mass called the isthmus. Internally, each lobe comprises many small spherical structures known as thyroid follicles, surrounded by a network of blood vessels.
The follicles have a central cavity lined by simple cuboidal to squamous epithelial cells called follicular cells. These cells produce the glycoprotein...
The Parathyroid Glands00:59

The Parathyroid Glands

The two pairs of parathyroid glands embedded within the posterior surface of the thyroid gland are restricted by a dense capsule around them. These glands comprise two distinct cell populations—parathyroid oxyphil and parathyroid principal cells- pivotal in calcium homeostasis.
Oxyphil cells, whose functions remain elusive, emerge during late puberty, adding a layer of complexity to the parathyroid gland's intricacies. In contrast, principal parathyroid cells undertake a vital role by producing...
Finding Volume Using Cross-Sectional Area01:24

Finding Volume Using Cross-Sectional Area

For solids whose cross-sectional areas vary in a predictable way, volume can be determined by integrating these areas along an axis perpendicular to the slices. This approach is particularly useful for polyhedral solids, where classical geometric formulas may not be immediately applicable. A tetrahedron provides a clear example of how cross-sectional integration can be applied to a three-dimensional object with continuously changing geometry.Consider a tetrahedron with height h and a base that...
Theorem of Pappus01:24

Theorem of Pappus

The Theorem of Pappus, also known as the Pappus–Guldinus Theorem, provides a geometric method for determining the volume and surface area of solids generated by the revolution of a plane region or a plane curve about an external axis. The theorem consists of two related statements. The first addresses the volume of solids formed by rotating plane areas, while the second addresses the surface area generated by rotating plane curves. Both results depend on the location of the centroid, which...

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相关实验视频

Updated: Jun 19, 2026

Establishment of a Simple and Effective Rat Model for Intraoperative Parathyroid Gland Imaging
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副甲状腺体重估计:超出圆体积.

Haley Corbin1, Nathalia Josette Roth2, Linwah Yip3

  • 1University of Pittsburgh Medical Center, Department of Pathology, Pittsburgh, PA, USA. corbinhn@upmc.edu.

Endocrine
|May 15, 2025
PubMed
概括
此摘要是机器生成的。

在线计算器使用囊体体体积重量估计 (VWE) 和细胞度准确估计甲状腺侧重量. 外科医生的估计也被证明是非常准确的,强调了临床评估技能的价值.

关键词:
在线计算器在线计算器PTHTH PTH 这是一个很好的方法.甲状腺上下腺体是什么大小 尺寸 尺寸 尺寸 尺寸测量体积重量的估计方法重量 重量 重量 重量 重量

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科学领域:

  • 内分泌学 在内分泌学.
  • 手术病理学手术病理学
  • 生物统计学 生物统计学

背景情况:

  • 副甲状腺体重是功能状态的关键指标,对于粗体和手术内评估至关重要.
  • 当直接测量是不可能的,准确的重量估计可能是具有挑战性的.

研究的目的:

  • 开发和验证模型,以根据尺寸和其他参数估计副甲状腺体重.
  • 为了创建一个用户友好的在线计算器来估计副甲状腺体重.

主要方法:

  • 从76名患者的124个副甲状腺中收集实际副甲状腺重量 (AW),细胞质和大小的前性收集.
  • 使用各种形状 (圆形,囊形,囊形,盒形) 的简单体积重估计 (VWE) 与AW的比较.
  • 多重线性回归 (MLR) 具有内部和外部验证,包括外科医生的估计和微观表面积的分析.

主要成果:

  • 最优的MLR模型结合了囊状VWE,细胞性和 prosector 标识 (R2: 0.92).
  • 在线计算器重量估计 (CWE) 用了一个没有检察官身份的可概括模型,显示了AW的良好预测 (R2: 0.86,nRMSE: 0.058).
  • 在子集分析中,外科医生的体重估计显示出高准确度 (R2:0.97,nRMSE:0.087).

结论:

  • 使用囊体VWE和细胞度的在线计算器有效地预测了实际的甲状腺侧甲状腺体重.
  • 虽然检察官测量方差对模型产生影响,但它对于包含是不切实际的.
  • 外科医生的直接体重估计仍然是一个非常准确和有价值的临床技能.