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Related Concept Videos

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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Related Experiment Video

Updated: Mar 11, 2026

In vivo Structural Assessments of Ocular Disease in Rodent Models using Optical Coherence Tomography
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Update of choroidal imaging techniques: Past, present and future.

J Ruiz-Medrano1, I Flores-Moreno1, R Gutierrez-Bonet2

  • 1Servicio de Oftalmología, Hospital Clínico Universitario San Carlos, Madrid, España.

Archivos De La Sociedad Espanola De Oftalmologia
|December 3, 2016
PubMed
Summary

Accurate measurement of the choroid, the eye's vascular layer, is now possible. Optical coherence tomography represents a significant advancement in choroidal imaging, offering new diagnostic capabilities.

Keywords:
AngiografíaAngiografía OCTAngiographyChoroidal imaging techniquesEn face optical coherence tomographyOCTOCT angiographyOptical coherence tomographyTomografía de coherencia ópticaTomografía de coherencia óptica en faceTécnicas de imagen coroideaUltrasonografíaUltrasound

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Area of Science:

  • Ophthalmology
  • Medical Imaging
  • Anatomy

Background:

  • The choroid, a vascular and pigmented layer of the eye, plays a crucial role in various ophthalmological diseases.
  • Historically, studying choroidal structure and function was challenging due to limitations in imaging technology.

Purpose of the Study:

  • To review the evolution of choroidal imaging techniques.
  • To highlight the impact of optical coherence tomography (OCT) on choroidal research and clinical practice.
  • To discuss future directions in choroidal imaging modalities.

Main Methods:

  • Review of historical and current imaging technologies for choroidal assessment.
  • Focus on ultrasound, indocyanine green angiography, and optical coherence tomography.
  • Discussion of recent advancements and future prospects in OCT technology.

Main Results:

  • Ultrasound and indocyanine green angiography were early methods for choroidal study with ongoing clinical relevance.
  • Optical coherence tomography has revolutionized choroidal imaging, enabling precise quantification of its shape and thickness.
  • Recent OCT developments offer enhanced resolution and new analytical possibilities.

Conclusions:

  • Accurate and reliable measurement of choroidal morphology is a recent achievement.
  • Optical coherence tomography is the leading technology for current and future choroidal imaging.
  • Continued advancements in OCT promise deeper insights into ocular health and disease.