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関連する概念動画

Nuclear Stability03:18

Nuclear Stability

23.0K
Protons and neutrons, collectively called nucleons, are packed together tightly in a nucleus. With a radius of about 10−15 meters, a nucleus is quite small compared to the radius of the entire atom, which is about 10−10 meters. Nuclei are extremely dense compared to bulk matter, averaging 1.8 × 1014 grams per cubic centimeter. If the earth’s density were equal to the average nuclear density, the earth’s radius would be only about 200 meters.
To hold positively charged protons together...
23.0K
Nuclear Fusion02:45

Nuclear Fusion

33.7K
The process of converting very light nuclei into heavier nuclei is also accompanied by the conversion of mass into large amounts of energy, a process called fusion. The principal source of energy in the sun is a net fusion reaction in which four hydrogen nuclei fuse and ultimately produce one helium nucleus and two positrons.
A helium nucleus has a mass that is 0.7% less than that of four hydrogen nuclei; this lost mass is converted into energy during the fusion. This reaction produces about...
33.7K
Non-nuclear Inheritance01:29

Non-nuclear Inheritance

23.1K
Most DNA resides in the nucleus of a cell. However, some organelles in the cell cytoplasm⁠—such as chloroplasts and mitochondria⁠—also have their own DNA. These organelles replicate their DNA independently of the nuclear DNA of the cell in which they reside. Non-nuclear inheritance describes the inheritance of genes from structures other than the nucleus.
23.1K
Nuclear Transmutation03:20

Nuclear Transmutation

20.5K
Nuclear transmutation is the conversion of one nuclide into another. It can occur by the radioactive decay of a nucleus, or the reaction of a nucleus with another particle. The first manmade nucleus was produced in Ernest Rutherford’s laboratory in 1919 by a transmutation reaction, the bombardment of one type of nuclei with other nuclei or with neutrons. Rutherford bombarded nitrogen-14 atoms with high-speed α particles from a natural radioactive isotope of radium and observed...
20.5K
Nuclear Export of mRNA02:31

Nuclear Export of mRNA

8.7K
Before mRNAs are exported to the cytoplasm, it is crucial to check each mRNA for structural and functional integrity. Eukaryotic cells use several different mechanisms, collectively known as mRNA surveillance, to look for irregularities in mRNAs. Irregular or aberrant mRNA are rapidly degraded by various enzymes. If a defective mRNA escapes the surveillance, it would be translated into a protein which would either be non-functional or not function properly. One of the primary irregularities in...
8.7K
Nuclear Power02:36

Nuclear Power

9.4K
Controlled nuclear fission reactions are used to generate electricity. Any nuclear reactor that produces power via the fission of uranium or plutonium by bombardment with neutrons has six components: nuclear fuel consisting of fissionable material, a nuclear moderator, a neutron source, control rods, reactor coolant, and a shield and containment system.
Nuclear Fuels
Nuclear fuel consists of a fissile isotope, such as uranium-235, which must be present in sufficient quantity to provide a...
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Updated: Jan 23, 2026

Production of Synthetic Nuclear Melt Glass
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Production of Synthetic Nuclear Melt Glass

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核医学におけるAI

Flemming Littrup Andersen1,2, Adam Espe Hansen3,2

  • 1Department of Clinical Physiology and Nuclear Medicine, Rigshospitalet, Denmark.

The British journal of radiology
|January 21, 2026
PubMed
まとめ
この要約は機械生成です。

人工知能(AI)は核医学の診断と治療を強化します。AI統合は革命的な可能性を提供しますが、これらの開発を研究から広範な臨床使用に移行することは依然として大きな課題です。

キーワード:
人工知能生成AI核医学PET規制SPECT

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Last Updated: Jan 23, 2026

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Isolation of CA1 Nuclear Enriched Fractions from Hippocampal Slices to Study Activity-dependent Nuclear Import of Synapto-nuclear Messenger Proteins
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Enema of Traditional Chinese Medicine for Patients with Severe Acute Pancreatitis
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科学分野:

  • 核医学
  • 医用画像処理
  • 人工知能

背景:

  • 人工知能(AI)、特にディープラーニング(DL)および畳み込みニューラルネットワーク(CNN)は、GPUなどのハードウェアの改善により急速に進歩しました。
  • 医用画像処理におけるAI統合は、取得の高速化、品質の向上、高度な生成、解釈支援、治療計画を通じて、核医学に革命をもたらすことを約束します。
  • 臨床AIアプリケーションは、腫瘍学、神経学、放射性医薬品療法などの専門分野に存在し、標準化された手順を介してより広範な患者アクセスを可能にする可能性があります。

研究 の 目的:

  • 核医学における現在のAIアプリケーションをレビューすること。
  • AIを開発から臨床実装に移行する際の課題と機会について議論すること。
  • 治療戦略、リスク評価、患者の転帰の最適化におけるAIの可能性を強調すること。

主な方法:

  • 取得、再構成、後処理、分析、意思決定支援を含む、核医学画像処理ワークフロー全体にわたる現在のAIアプリケーションのレビュー。
  • AI開発から臨床的成熟への移行の議論。プロトタイピングを超えて達成されるAIアプリケーションの割合が低いことに注意。
  • 核医学におけるAI実装の課題と機会に焦点を当てる。

主要な成果:

  • AI統合は、核医学における効率と転帰を改善する大きな可能性を提供します。
  • 核医学におけるAI開発で商業的に成熟したもの はほとんどなく、ほとんどのアプリケーションはまだ開発またはプロトタイピング段階にあります。
  • AIは高度な画像処理を標準化し、小規模クリニックでも利用できるようにし、より広範な患者層に利益をもたらすことができます。

結論:

  • AIは核医学に大きな可能性を秘めていますが、臨床実装には大きなハードルが存在します。
  • 課題を克服し、核医学の診断と治療におけるAIの可能性を完全に実現するには、さらなる研究開発が必要です。
  • 開発から臨床実践への移行に焦点を当てることは、この分野におけるAIの広範な採用にとって重要です。