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Related Concept Videos

Imaging Studies VII: Vascular Imaging01:19

Imaging Studies VII: Vascular Imaging

46
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...
46
Radiological Investigation III: Pulmonary Angiogram and PET Scan01:13

Radiological Investigation III: Pulmonary Angiogram and PET Scan

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Radiological investigations are paramount in the diagnosis and management of various pulmonary diseases. Two essential investigations are the Pulmonary Angiogram and the Positron Emission Tomography (PET) Scan.
Pulmonary Angiogram
A Pulmonary Angiogram is an invasive procedure involving injecting a contrast medium through a catheter threaded into the pulmonary artery or the right side of the heart to visualize the pulmonary vasculature. Computed Tomography (CT) scans have mainly replaced this...
144
Imaging Studies for Cardiovascular System V: CT01:28

Imaging Studies for Cardiovascular System V: CT

58
Cardiac computed tomography (CT) scanning is an advanced cardiac imaging technique that utilizes CT technology, with or without intravenous (IV) contrast, to produce accurate cross-sectional virtual slices of specific areas of the heart, coronary circulation, and major blood vessels such as the aorta, pulmonary veins, and arteries. The computer processes these slices to generate three-dimensional images. Multidetector CT (MDCT) is a rapid form of CT scanning that captures multiple slices...
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Optimization of quantitative time-resolved 3D (4D) digital subtraction angiography in a porcine liver model.

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Quantitative 4D-Digital Subtraction Angiography to Assess Changes in Hepatic Arterial Flow during Transarterial Embolization: A Feasibility Study in a Swine Model.

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Ultra-Low Radiation Dose CT Fluoroscopy for Percutaneous Interventions: A Porcine Feasibility Study.

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Measuring blood velocity using 4D-DSA: A feasibility study.

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Related Experiment Video

Updated: Aug 21, 2025

Two-Dimensional X-Ray Angiography to Examine Fine Vascular Structure Using a Silicone Rubber Injection Compound
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Development of accelerated angiography techniques.

Charles A Mistretta1

  • 1Department of Medical Physics, University of Wisconsin, Madison, Wisconsin, USA.

Medical Physics
|November 15, 2022
PubMed
Summary

Researchers developed advanced angiographic acquisition techniques to improve image resolution and reduce radiation dose. These innovations enhance diagnostic imaging while prioritizing patient safety.

Area of Science:

  • Medical Imaging
  • Radiology
  • Cardiovascular Imaging

Background:

  • Angiography is crucial for diagnosing vascular diseases.
  • Traditional angiography faces limitations in spatial and temporal resolution.
  • Radiation exposure is a significant concern in repeated angiographic procedures.

Purpose of the Study:

  • To review the evolution of angiographic acquisition techniques.
  • To highlight methods improving spatial and temporal resolution.
  • To present strategies for radiation dose reduction in angiography.

Main Methods:

  • Review of historical and current angiographic acquisition technologies.
  • Analysis of advancements in imaging hardware and software.
  • Evaluation of techniques for optimizing image quality and minimizing radiation dose.
Keywords:
Nyquist violationaccelerationartifact reduction

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Main Results:

  • Demonstrated significant improvements in spatial and temporal resolution over decades.
  • Identified techniques achieving substantial radiation dose reduction.
  • Showcased the progression from early methods to state-of-the-art acquisition.

Conclusions:

  • Continuous innovation has led to superior angiographic imaging.
  • Modern techniques balance high resolution with reduced patient dose.
  • Future developments will likely further refine these capabilities.