関連する実験動画
Updated: Feb 11, 2026

10:51
Modeling Breast Cancer in Human Breast Tissue using a Microphysiological System
Published on: April 23, 2021
4.7K
正常乳腺組織(NBT)分類器:正常乳腺組織学におけるコンパートメント分類の進歩
Siyuan Chen1, Mario Parreno-Centeno1, Graham Booker1
1Cancer Bioinformatics, School of Cancer & Pharmaceutical Sciences, Faculty of Life Sciences and Medicine, King's College London, London, UK.
NPJ breast cancer
|February 9, 2026
まとめ
人工知能(AI)モデルであるNBT分類器は、全スライド画像から正常乳腺組織(NBT)を解析できるようになりました。これらのモデルは組織コンパートメントを正確に特定し、早期乳がんの検出と予防に役立ちます。
科学分野:
- 計算病理学
- デジタル病理組織学
- 腫瘍学における人工知能
背景:
- 正常乳腺組織(NBT)の定量的分析は、早期がん検出にとって重要ですが、依然として限定的です。
- デジタル化されたスライドを使用した計算病理学は可能性を提供しますが、NBTのAIベースの分析が不足しています。
研究 の 目的:
- 正常乳腺組織の分類のためのAIモデルを開発および検証すること。
- 早期乳がん検出を支援するために、NBTコンパートメント分析のための堅牢な分析ツールを確立すること。
主な方法:
- 病理医がガイドしたアノテーションを持つ70枚の正常乳腺組織(NBT)の全スライド画像(WSI)をキュレーションしました。
- 畳み込みニューラルネットワーク(CNN)ベースのパッチレベル分類モデル(NBT分類器)を開発しました。
- 異なるパッチサイズ(128x128µmおよび256x256µm)を使用して、3つの外部コホート全体でモデルを検証しました。
主要な成果:
- NBT分類器は、外部コホート全体で0.98〜1.00のAUCを達成し、高いパフォーマンスを発揮しました。
- モデルは正常組織の明確な特徴を特定し、前がん病変およびがん性上皮からそれらを区別しました。
- 説明可能なAI技術により学習済み特徴が可視化され、パイプラインへの統合により周小葉領域の解析が容易になりました。
結論:
- NBT分類器は、正常乳腺組織の正確でコンパートメント特異的な分析を提供します。
- これらのツールは、前がん病変の変化を特定するための参照として機能し、NBT形態の理解を深めます。
- 開発されたモデルは、定量的分析の改善を通じて、早期乳がん予防戦略をサポートします。
関連する概念動画
Normal Distribution
17.3K
The normal, a continuous distribution, is the most important of all the distributions. Its graph is a bell-shaped symmetrical curve, which is observed in almost all disciplines. Some of these include psychology, business, economics, the sciences, nursing, and, of course, mathematics. Some instructors may use the normal distribution to help determine students’ grades. Most IQ scores are normally distributed. Often real-estate prices fit a normal distribution. The normal distribution is...
17.3K
Normal Stress
1.5K
Normal stress is a type of stress that occurs when forces act perpendicular, or normal, to a material's cross-sectional area. This stress often arises in structures when subjected to axial loading, which is the application of force along the axis of an object. A practical example of this can be found in bridge truss members.
When a rod is under axial loading, the internal forces and corresponding stress are normal to the plane of the section, so it is termed normal stress. It's important to...
When a rod is under axial loading, the internal forces and corresponding stress are normal to the plane of the section, so it is termed normal stress. It's important to...
1.5K
Introduction to Normal Distributions
83
Standardized test scores often follow a symmetric distribution that can be modeled with the normal distribution, a fundamental concept in statistics. This distribution is particularly useful for interpreting test performance fairly across populations, as it provides a mathematical framework for understanding variability and central tendency in large datasets.From Histogram to Frequency DistributionRaw test data are often displayed using histograms, where the height of each bar represents the...
83
Applications of Normal Distribution
9.5K
The normal distribution is a useful statistical tool. One of its practical applications is determining the door height after considering the normal distribution of heights of persons, such that many can pass through it easily without striking their heads. The normal distribution can also determine the probability of a person having a height less than a specific height.
The heights of 15 to 18-year-old males from Chile from 1984 to 1985 followed a normal distribution. The mean height is 172.36...
The heights of 15 to 18-year-old males from Chile from 1984 to 1985 followed a normal distribution. The mean height is 172.36...
9.5K
Normal and Shear Force
3.4K
When a beam is subjected to different loads, such as weight, pressure, or other external forces, internal forces are generated within the beam. These forces can have a significant impact on the overall stability and strength of the structure. Engineers use various methods to analyze and determine the magnitude and direction of these internal forces. One common technique used to determine internal forces in beams is the method of sections. This method involves considering an imaginary point or...
3.4K
Variation: Normal Distribution, Range, and Standard Deviation
28.7K
In the field of psychology, there are several ways to organize measurements of a trait, feature, or characteristic (i.e., variables). Qualitative data, such as ethnicity, can be tabulated into a frequency count to provide information about the proportion, as well as the variety of groups in a sample or population. On the other hand, researchers can perform a wider set of calculations on quantitative data. The mean, mode, and median, for instance, are central tendency measures to identify a...
28.7K

