関連する実験動画
Updated: Feb 14, 2026

10:46
Doppler Optical Coherence Tomography of Retinal Circulation
Published on: September 18, 2012
19.3K
広場光学相関トモグラフィーアンジオグラフィーにおける結核性網膜血管炎
An-Lun Wu1,2, Yukun Guo1,3, Jinyi Hao1,3
1Casey Eye Institute, Oregon Health & Science University, Portland, OR, USA.
American journal of ophthalmology case reports
|February 13, 2026
まとめ
ワイドフィールド・スイープ・ソース・オプティカル・コヒーレンス・トモグラフィー・アンジオグラフィー (SS-OCTA) は,結核性網膜血管炎 (TRV) の周辺微血管の変化を効果的に視覚化します. この非侵襲的イメージングは,TRV合併症の診断と管理に役立ちます.
科学分野:
- オフタルモロジック (眼科)
- メディカルイマージング (医学イメージング)
- 血管生物学 血管生物学
背景:
- 結核性網膜血管炎 (TRV) は,網膜の血管に影響する炎症性疾患です.
- 診断は,しばしば臨床的徴候と,光セイン血管図 (FA) のような侵襲的イメージングに依存します.
- 外周血管の異常を特定することは,TRVの管理に極めて重要です.
研究 の 目的:
- ワイドフィールド・スイープ・ソース・オプティカル・コヒーレンス・トモグラフィー・アンジオグラフィー (SS-OCTA) の診断的有用性を評価する.
- 推定TRVの患者の微血管異常を特定する.
- TRVの非侵襲的なイメージング方式としてSS-OCTAを評価する.
主な方法:
- 推定TRVを有する3人の患者のケースシリーズが研究されました.
- 患者は26×21mmスキャンによるワイドフィールドSS-OCTA (DREAM OCT, Intalight) を受けました.
- 結果は,臨床的徴候と光素血管図 (FA) と比較されました.
主要な成果:
- SS-OCTAは,すべての患者において,外周毛細血管の非輸血と血管の再構築を明らかにした.
- ネオバスケラーツーフを含む網膜新血管化の特徴が視覚化されました.
- 結果は,FAの発見と一致し,外周不 perfusionと付随の血管形成を示しました.
結論:
- ワイドフィールドSS-OCTAは,TRVにおける外周網膜の変化の詳細な可視化を提供します.
- 非 perfusion 領域,付随血管,および新血管化を特定することができます.
- SS-OCTAは,TRV管理のためのFAの非侵襲的な補完ツールとしての潜在性を示しています.
関連する概念動画
Computed Tomography
8.9K
Tomography refers to imaging by sections. Computed tomography (CT) is a non-invasive imaging technique that uses computers to analyze several cross-sectional X-rays to reveal minute details about structures in the body.
The technique was invented in the 1970s and is based on the principle that as X-rays pass through the body, they are absorbed or reflected at different levels. In the technique, a patient lies on a motorized platform while a computerized axial tomography (CAT) scanner rotates...
The technique was invented in the 1970s and is based on the principle that as X-rays pass through the body, they are absorbed or reflected at different levels. In the technique, a patient lies on a motorized platform while a computerized axial tomography (CAT) scanner rotates...
8.9K
Positron Emission Tomography
7.7K
Positron emission tomography (PET) is a medical imaging technique involving radiopharmaceuticals — substances that emit short-lived radiation. Although the first PET scanner was introduced in 1961, it took 15 more years before radiopharmaceuticals were combined with the technique and revolutionized its potential.
One of the main requirements of a PET scan is a positron-emitting radioisotope, which is produced in a cyclotron and then attached to a substance used by the part of the body...
One of the main requirements of a PET scan is a positron-emitting radioisotope, which is produced in a cyclotron and then attached to a substance used by the part of the body...
7.7K
Properties of Enantiomers and Optical Activity
21.9K
It is essential to understand the difference between chiral and achiral interactions and the implications thereof in optical activity and their applications. Just as our feet, which are chiral, interact uniquely with chiral objects, such as a pair of shoes, but identically with achiral socks, enantiomers of a molecule exhibit different properties only when they interact with other chiral media. An example of a significant implication from this facet is the phenomenon known as optical activity,...
21.9K
Imaging Studies III: Computed Tomography
410
DefinitionComputed Tomography (CT) of the genitourinary (GU) tract is a non-invasive imaging modality that utilizes X-rays and computer processing to generate detailed cross-sectional images of the urinary system, encompassing the kidneys, ureters, bladder, and adjacent structures such as the adrenal glands.PurposeCT scans of the GU tract serve several diagnostic and therapeutic purposes, including:Diagnosis of Urinary Tract Diseases: Detects kidney stones, tumors, cysts, and congenital...
410
Imaging Biological Samples with Optical Microscopy
11.1K
Optical microscopy uses optic principles to provide detailed images of samples. Antonie van Leeuwenhoek designed the first compound optical microscope in the 17th century to visualize blood cells, bacteria, and yeast cells. In 1830, Joseph Jackson Lister created an essentially modern light microscope. The 20th century saw the development of microscopes with enhanced magnification and resolution.
In optical microscopy, the specimen to be viewed is placed on a glass slide and clipped on the stage...
In optical microscopy, the specimen to be viewed is placed on a glass slide and clipped on the stage...
11.1K
Imaging Studies II: Positron Emission Tomography and Scintigraphy
619
Positron Emission Tomography (PET) is a medical imaging technique that provides crucial insights into the body's physiological functions at a molecular level. It is an indispensable resource for diagnosing, staging, and monitoring various illnesses, notably cancer, neurological disorders, and cardiovascular conditions.
Fundamental Principles of PET
Fundamental Principles of PET
619

