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Liver Histology01:27

Liver Histology

4.5K
The microscopic anatomy of the liver is a complex and intricate system that comprises numerous structural units known as liver lobules, each of which is comparable in size to a sesame seed. These hexagonal structures consist of plates of liver cells or hepatocytes, which are characterized by their versatility and abundance of cellular apparatus like rough and smooth ER, Golgi apparatus, peroxisomes, and mitochondria.
Hepatocytes perform a variety of essential functions. They secrete...
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Liver Physiology01:30

Liver Physiology

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The liver, an essential organ in the human body, performs over 200 vital functions that can be broadly categorized into metabolic, hematological, endocrine regulation, and bile production.
Metabolic Regulation:
The liver is the central organ involved in regulating blood composition. It stabilizes blood glucose levels, maintaining them within the range of  70–110 mg/dL. When these levels drop, the liver breaks down glycogen reserves and releases glucose into the bloodstream. It can...
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Liver Regeneration01:24

Liver Regeneration

4.4K
The liver is an important organ in vertebrates that plays an essential role in metabolism. It is also responsible for storing and redistributing nutrients such as carbohydrates, fats, and vitamins in the body. Additionally, the liver releases bile salts which are critical for digesting food and eliminating toxic metabolites from the body.
Cells of Liver
The liver comprises four major types of cells— hepatocytes, stellate, Kupffer, and sinusoidal endothelial cells. The hepatocytes are...
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Gross Anatomy of the Liver01:17

Gross Anatomy of the Liver

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The liver, the largest gland within the human body, is a firm and reddish-brown organ. This wedge-shaped structure weighs approximately 1.5 kg and occupies a significant portion of the right hypochondriac and epigastric regions. It extends more to the right of the body's midline than to the left.
Located under the diaphragm, the liver is almost entirely ensconced within the rib cage, providing it with substantial protection. Except for the superior most bare area, the liver's surface is...
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Diseases of the Liver and Gallbladder01:26

Diseases of the Liver and Gallbladder

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Liver and gallbladder diseases are a significant health concern, with prominent conditions including cirrhosis, hepatitis, non-alcoholic fatty liver disease (NAFLD), and gallstones. Jaundice is a common manifestation of liver and biliary disease.
Cirrhosis is characterized by the scarring of hepatic lobules in the liver, which are replaced by fibrous tissue, affecting the liver's normal functioning. NAFLD, on the other hand, is caused by an excessive build-up of fat in the liver, not...
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Visual System01:26

Visual System

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Light enters the eye through the cornea, a transparent, dome-shaped surface covering the surface of the eyeball that helps to direct and focus incoming light. This light is then channeled toward the pupil, an adjustable opening whose size is controlled by the iris. The iris, a pigmented muscle, regulates the amount of light entering the eye by contracting or dilating the pupil, thereby ensuring optimal light levels for clear vision.
Once through the pupil, the light passes through the lens, a...
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Updated: Feb 13, 2026

Monocular Visual Deprivation and Ocular Dominance Plasticity Measurement in the Mouse Primary Visual Cortex
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拡張モノキュラー肝臓ラパロスコーピーの隠された腫瘍の可視化

Kirana Hanifati1, Mohammad Alkhatib1, Erol Ozgur1

  • 1Clermont Auvergne INP Institut Pascal Clermont-Ferrand France.

Healthcare technology letters
|February 12, 2026
PubMed
まとめ

この研究は,腹腔鏡外科手術中に隠された肝臓腫瘍を視覚化するための新しい方法を導入しています. 腫瘍の登録のために超音波画像を用いて外科医の深さの知覚を改善し,外科の指導を強化します.

キーワード:
拡張現実 (AR) を活用する.データビジュアライゼーション医療画像処理 医療画像処理について

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Author Spotlight: Advancements in Refractive Surgical Correction for Presbyopia and Exploring Postoperative Visual Acuity
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科学分野:

  • メディカルイマージング (医学イメージング)
  • 外科技術とは外科技術のことです.
  • コンピューター支援外科手術

背景:

  • 拡張されたモノキュラー肝臓の腹腔鏡検査で隠された腫瘍の正確な深さの知覚は,依然として重要な課題です.
  • 術前CT登録を使用する現在の方法は,肝臓の変形と機能の欠如のために,しばしば遅くて失敗します.
  • 手術指導のための継続的な腫瘍増強は,登録制限によって妨げられています.

研究 の 目的:

  • 拡張肝臓 laparoscopyで隠された腫瘍の深さの認識を改善するための新しい可視化方法を開発する.
  • 拡張現実の肝臓手術におけるリアルタイム登録の限界を克服するために.
  • 腫瘍のメトリック深さの知覚を提供することにより,外科的指導を強化する.

主な方法:

  • 変形性肝臓の術前から術内への登録は,腹腔鏡超音波画像を用いた硬質腫瘍の登録に置き換えられた.
  • 視覚化技術を開発し,深度シグナルのためのオーバーレイドの臓器網から部分的な遮断を組み込んだ.
  • 手術道具の閉塞やリアルタイム処理など,課題を解決しました.

主要な成果:

  • 提案された方法は,最先端の技術と比較して,深さの知覚において優れたパフォーマンスを示した.
  • 伝統的な登録方法よりも,より短い処理時間を達成しました.
  • 拡張可視化の中で外科器具の閉塞をうまく処理しました.

結論:

  • 腹腔鏡超音波を用いた新しい可視化方法は,隠された腫瘍のメトリック深さの知覚を大幅に改善します.
  • このアプローチは,拡張性肝臓 laparoscopy のためのより堅牢で継続的な外科ガイドラインソリューションを提供します.
  • この方法は既存のテクニックを上回り,現在の拡張現実の外科システムの重要な限界を解決します.