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Imaging in Vascular Access.

Eoin A Murphy1, Rose A Ross2, Robert G Jones3

  • 1Metabolic and Clinical Medicine, College of Medicine, Ninewells Hospital, University of Dundee, Dundee, DD1 9SY, UK.

Cardiovascular Engineering and Technology
|July 15, 2017
PubMed
Summary

This review compares four imaging techniques for vascular access (VA): ultrasound (US), digital subtraction angiography (DSA), magnetic resonance imaging (MRI), and computed tomography (CT). Each has unique benefits and drawbacks, influencing their current and future use in patient care.

Keywords:
Arteriovenous fistulaComputed tomographyDigital subtraction angiographyMagnetic resonance imagingMedical imagingUltrasoundVascular access

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Area of Science:

  • Medical Imaging
  • Vascular Surgery
  • Interventional Radiology

Background:

  • Vascular access (VA) is crucial for various medical procedures.
  • Selecting the optimal imaging modality for VA is essential for effective patient management.
  • Four key imaging modalities are commonly considered for VA procedures.

Purpose of the Study:

  • To review and compare ultrasound (US), digital subtraction angiography (DSA), magnetic resonance imaging (MRI), and computed tomography (CT) for vascular access applications.
  • To analyze the primary uses, techniques, advantages, disadvantages, and future directions of these modalities in VA.
  • To provide insights into the integrated approach for imaging in vascular access.

Main Methods:

  • Review of literature on US, DSA, MRI, and CT in the context of vascular access.
  • Analysis of modality-specific characteristics including cost, accessibility, image quality, and invasiveness.
  • Evaluation of current applications and potential future roles in complex VA cases.

Main Results:

  • Ultrasound (US) is currently the most utilized due to cost-effectiveness, accessibility, and non-ionizing nature.
  • Digital subtraction angiography (DSA) is primarily used for interventional guidance.
  • MRI and CT offer high resolution but face limitations in cost, acquisition time, and accessibility, though they show future promise for complex cases.

Conclusions:

  • Each imaging modality (US, DSA, MRI, CT) possesses distinct advantages and disadvantages for vascular access.
  • An integrated imaging approach, leveraging the strengths of each modality, is currently employed.
  • MRI and CT are expected to play a more significant role in managing complex vascular access cases in the future.