Related Experiment Video

Updated: Jul 7, 2026

Time-Resolved, Dynamic Computed Tomography Angiography for Characterization of Aortic Endoleaks and Treatment Guidance via 2D-3D Fusion-Imaging
09:32

Time-Resolved, Dynamic Computed Tomography Angiography for Characterization of Aortic Endoleaks and Treatment Guidance via 2D-3D Fusion-Imaging

Published on: December 9, 2021

Time-resolved MR angiography for the classification of endoleaks after endovascular aneurysm repair

Emil I Cohen1, David B Weinreb, Robert H Siegelbaum

  • 1Department of Radiology, Mount Sinai Hospital, New York, NY 10029, USA. emil.cohen@mountsinai.org

Journal of Magnetic Resonance Imaging : JMRI
|March 1, 2008
PubMed
Abstract

Insights

Time-resolved MR angiography (TR-MRA) accurately classifies endoleaks after endovascular aneurysm repair (EVAR), showing high agreement with digital subtraction angiography (DSA). This imaging technique is effective for post-EVAR endoleak assessment.

Area of Science:

  • Vascular Surgery
  • Diagnostic Imaging
  • Radiology

Background:

  • Endovascular aneurysm repair (EVAR) is a common treatment for abdominal aortic aneurysms.
  • Accurate classification of endoleaks is crucial for successful EVAR outcomes.
  • Digital subtraction angiography (DSA) is the current gold standard for endoleak detection.

Purpose of the Study:

  • To compare the diagnostic utility of time-resolved MR angiography (TR-MRA) with DSA.
  • To assess TR-MRA's effectiveness in classifying endoleaks following EVAR.

Main Methods:

  • Thirty-one patients who underwent EVAR for abdominal aortic aneurysms were included.
  • Both TR-MRA and DSA were performed to identify and classify endoleaks.
  • Endoleak classification criteria were established based on vessel enhancement patterns.

Main Results:

  • TR-MRA demonstrated high agreement (97%) with DSA in endoleak classification.
  • One case of Type II endoleak was misclassified as Type III by TR-MRA due to non-visualization of a lumbar vessel.
  • TR-MRA proved highly effective in differentiating endoleak types.

Conclusions:

  • TR-MRA is a highly effective imaging modality for classifying endoleaks after EVAR.
  • TR-MRA offers a valuable alternative or adjunct to DSA in the post-EVAR surveillance setting.

More Related Videos

A New Murine Model of Endovascular Aortic Aneurysm Repair08:51

A New Murine Model of Endovascular Aortic Aneurysm Repair

Published on: July 7, 2013

Reduction of Radiation Exposure during Endovascular Treatment of Peripheral Arterial Disease Combining Fiber Optic RealShape Technology and Intravascular Ultrasound13:48

Reduction of Radiation Exposure during Endovascular Treatment of Peripheral Arterial Disease Combining Fiber Optic RealShape Technology and Intravascular Ultrasound

Published on: April 21, 2023

Related Concept Videos

Aneurysm III: Interprofessional Care01:26

Aneurysm III: Interprofessional Care

Aneurysm management involves either conservative medical therapy or surgical intervention, depending on the size and symptoms of the aneurysm. Conservative management is generally reserved for smaller, asymptomatic aneurysms, while larger or symptomatic aneurysms often necessitate surgical repair.Conservative Medical TherapyFor small, asymptomatic aneurysms, particularly abdominal aortic aneurysms (AAA) less than 5.5 centimeters in diameter, conservative medical therapy is recommended. This...
Aneurysm IV: Nursing Management01:22

Aneurysm IV: Nursing Management

Vigilant monitoring for aneurysm rupture is essential for patients undergoing aortic surgery.Preoperative Nursing ManagementContinuously monitor the patient for manifestations of aneurysm rupture, such as pallor, weakness, tachycardia, hypotension, abdominal, back, groin, or periumbilical pain, changes in consciousness, and a pulsating abdominal mass. Regularly assess the patient's peripheral pulses.Instruct the patient to consume a clear liquid diet the day before surgery and administer...
Imaging Studies VII: Vascular Imaging01:19

Imaging Studies VII: Vascular Imaging

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...