Pseudoendoleak
Updates to Article Attributes
Pseudoendoleak is a colour Doppler ultrasound phenomenon caused by spurious colour signal in the aneurysm sac following endovascular aneurysm repair (EVAR).
Radiographic features
Pseudoendoleak is defined as flow signal on colour Doppler in the aneurysm sac following EVAR, without evidence of leak on subsequent investigation. The spurious nature of the signal can be confirmed by the absence of contrast enhancement in the same region (e.g. by CEUS, or CT angiography). It has been proposed that theThe phenomenon is thought to be the result of the agitation of incarcerated fluidfluid trapped within the aneurysm sac after a repair 1,2.
A similar phenomenon has been reported on CT, where contrast material administered prior to endovascular aneurysm repair is sealed within the aneurysm sac, creating the appearance of a leak 3. This can be differentiated from a leak by demonstrating presence on a non-contrast scan.
-<p><strong>Pseudoendoleak</strong> is a recently described <a title="Color Doppler" href="/articles/color-flow-doppler-ultrasound">colour Doppler</a> ultrasound phenomenon caused by spurious colour signal in the aneurysm sac following <a title="EVAR" href="/articles/endovascular-aneurysm-repair">endovascular aneurysm repair (EVAR)</a>. </p><h4>Radiographic features</h4><p>Pseudoendoleak is defined as flow signal on colour Doppler in the aneurysm sac following EVAR. The spurious nature of the signal can be confirmed by the absence of contrast enhancement in the same region (e.g. by <a title="CEUS (ultrasound)" href="/articles/contrast-enhanced-ultrasound-2">CEUS</a>, or CT angiography). It has been proposed that the phenomenon is the result of the agitation of incarcerated fluid within the aneurysm sac <sup>1</sup>. </p><p> </p>- +<p><strong>Pseudoendoleak</strong> is a <a href="/articles/color-flow-doppler-ultrasound" title="Color Doppler">colour Doppler</a> ultrasound phenomenon caused by spurious colour signal in the aneurysm sac following <a href="/articles/endovascular-aneurysm-repair" title="EVAR">endovascular aneurysm repair (EVAR)</a>.</p><h4>Radiographic features</h4><p>Pseudoendoleak is defined as flow signal on colour Doppler in the aneurysm sac following EVAR, without evidence of leak on subsequent investigation. The spurious nature of the signal can be confirmed by the absence of contrast enhancement in the same region (e.g. by <a href="/articles/contrast-enhanced-ultrasound-2" title="CEUS (ultrasound)">CEUS</a>, or CT angiography). The phenomenon is thought to be the result of agitation of fluid trapped within the aneurysm sac after a repair <sup>1,2</sup>. </p><p>A similar phenomenon has been reported on CT, where contrast material administered prior to endovascular aneurysm repair is sealed within the aneurysm sac, creating the appearance of a leak <sup>3</sup>. This can be differentiated from a leak by demonstrating presence on a non-contrast scan.</p>
References changed:
- 2. Badri H, El Haddad M, Ashour H, Nice C, Timmons G, Bhattacharya V. Duplex Ultrasound Scanning (DUS) Versus Computed Tomography Angiography (CTA) in the Follow-Up After EVAR. Angiology. 2009;61(2):131-6. <a href="https://doi.org/10.1177/0003319709348296">doi:10.1177/0003319709348296</a> - <a href="https://www.ncbi.nlm.nih.gov/pubmed/19825870">Pubmed</a>
- 3. Lee W, Rubin G, Johnson B, Arko F, Fogarty T, Zarins C. <b>“Pseudoendoleak”</B>— Residual Intrasaccular Contrast After Endovascular Stent-Graft Repair. J Endovasc Ther. 2002;9(1):119-23. <a href="https://doi.org/10.1177/152660280200900119">doi:10.1177/152660280200900119</a> - <a href="https://www.ncbi.nlm.nih.gov/pubmed/11958315">Pubmed</a>
Tags changed:
- aaa
- endoleak
- mimics
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