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関連する概念動画

Imaging Studies VII: Vascular Imaging01:19

Imaging Studies VII: Vascular Imaging

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DefinitionRenal angiography, also known as renal arteriography, is an imaging technique used to obtain a comprehensive view of blood flow and the vascular structure of blood vessels in the kidneys and surrounding areas.PurposeRenal angiography detects blood vessel abnormalities in the kidneys, such as aneurysms, stenosis, thrombosis, vascular tumors, and renal artery stenosis. It evaluates kidney function and guides interventional treatments like angioplasty or stent placement.Pre-Procedure...
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Imaging Studies IV: Magnetic Resonance Imaging01:27

Imaging Studies IV: Magnetic Resonance Imaging

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Introduction:Magnetic Resonance Imaging, or MRI, can include a specialized imaging technique of the urinary system known as Magnetic Resonance Urography (MRU). This radiation-free technique uses strong magnetic fields and radio waves to produce detailed images with the help of a computer. MRU is particularly effective for visualizing fluid-filled structures like the kidneys, ureters, and bladder.Applications of MRI in the Genitourinary SystemKidneys and Ureters: MRI detects tumors, cysts,...
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X-ray Imaging01:24

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German physicist Wilhelm Röntgen (1845–1923) was experimenting with electrical current when he discovered that a mysterious and invisible "ray" would pass through his flesh but leave an outline of his bones on a screen coated with a metal compound. In 1895, Röntgen made the first durable record of the internal parts of a living human: an "X-ray" image (as it came to be called) of his wife’s hand. Scientists worldwide quickly began their own experiments with...
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Brain imaging technologies provide critical insights into both the structure and function of the human brain, enabling medical professionals and researchers to diagnose, study, and treat neurological disorders or psychiatric disorders more effectively.
These technologies include computerized axial tomography (CAT or CT scans), positron-emission tomography (PET scans),  magnetic resonance imaging (MRI),  functional magnetic resonance imaging (fMRI), and Transcranial Magnetic...
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Magnetic resonance imaging (MRI) is a noninvasive medical imaging technique based on a phenomenon of nuclear physics discovered in the 1930s, in which matter exposed to magnetic fields and radio waves was found to emit radio signals. In 1970, a physician and researcher named Raymond Damadian noticed that malignant (cancerous) tissue gave off different signals than normal body tissue. He applied for a patent for the first MRI scanning device in clinical use by the early 1980s. The early MRI...
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IntroductionUltrasonography, or renal ultrasound, is a noninvasive medical imaging technique that uses high-frequency sound waves to visualize the kidneys, ureters, bladder, and surrounding tissues.Indications for Urinary System UltrasonographyUrinary system ultrasonography is indicated in various clinical scenarios, such as:Kidney Stones (Urolithiasis): To detect and monitor the size and presence of kidney or urinary tract stones.Hydronephrosis: To assess the dilation of the renal pelvis and...
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関連する実験動画

Updated: Jan 23, 2026

Design and Validation of a Volumetric-extrusion Bioprinter for Bioprinting of Soluble Basement Membrane Extract for Translational Research
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画像誘導型体積バイオプリンティング

Thomas M Robinson1, Yu Shrike Zhang2, Khoon S Lim1

  • 1School of Medical Sciences, Faculty of Medicine and Health, University of Sydney, Camperdown, Sydney, New South Wales 2006, Australia.

Trends in biotechnology
|January 21, 2026
PubMed
まとめ

画像誘導型体積バイオプリンティングは、複雑な組織工学構造の適応型製造を可能にする。この新しいワークフローは、コンピュータビジョンを使用して、ハイドロゲル内の細胞機能を向上させる血管網を作成する。

キーワード:
適応型バイオファブリケーション体積

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科学分野:

  • バイオプリンティング
  • 組織工学
  • 生体材料

背景:

  • 体積バイオプリンティングは、組織工学のための高度な製造能力を提供する。
  • 適応型戦略は、工学的な組織への生存細胞と血管網の統合に必要である。
  • 現在の方法では、複雑で機能的な細胞構造の作成に課題がある。

研究 の 目的:

  • 新しい画像誘導型体積バイオプリンティングワークフローを導入すること。
  • 組織工学のための複雑な3D構造の適応型製造を可能にすること。
  • 工学的な構築物内の生存細胞の機能を改善すること。

主な方法:

  • 生成型、適応型、コンテキスト認識型3Dプリンティング（GACAP）ワークフローの開発。
  • 自動化されたネットワーク生成のためのコンピュータビジョンの統合。
  • 生存細胞を含むハイドロゲル内での血管様ネットワークのバイオプリンティング。

主要な成果:

  • 機能的な血管様ネットワークの成功裏の生成。
  • ネットワークは、生存細胞の存在と分布に適合した。
  • バイオプリントされた構築物内の細胞機能の改善を実証した。

結論:

  • 画像誘導型体積バイオプリンティングは、適応型製造を促進する。
  • GACAPワークフローは、組織工学における細胞の統合と機能を強化する。
  • このアプローチは、より洗練された機能的な工学組織を作成する可能性を秘めている。