[Ultrasound for surveillance after endovascular repair of abdominal aortic aneurysm--simple and safe?].
In the past, multislice computed tomography angiography (CTA) with arterial and venous phase was recommended as the gold standard in follow-up after endovascular abdominal aneurysm repair (EVAR). Iodine-containing contrast agents and frequent radiation exposure are limitations for use in elderly patients with chronic renal insufficiency. Colour-coded Doppler sonography (CCDS) and, especially, contrast-enhanced ultrasound (CEUS) are non-invasive methods that are time and cost effective. Both provide a reliable alternative to CTA in surveillance after EVAR. CEUS seems to be superior in characterisation of the type of endoleaks and can be established in order to reduce iodine-containing contrast agent and radiation exposure in follow-up. In contrast to CTA scans, CEUS can be offered to patients with chronic renal insufficiency and allows a dynamic examination and perfusion analysis (e. g., in fenestrated and branched stentgrafts). Routine combination with X-ray allows control of stentgraft material and location of the branches.
Universitätsklinikum Regensburg, Gefäß- und Endovaskuläre Chirurgie, Regensburg, Deutschland. karin.pfister@klinik.uniregensburg.de
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Krammer
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Janotta
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Jung
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Kasprzak
D000368:Aged; D017130:Angioplasty; D017544:Aortic Aneurysm, Abdominal / Q000000981:diagnostic imaging* / Q000601:surgery*; D001027:Aortography; D019917:Blood Vessel Prosthesis Implantation; D002445:Celiac Artery / Q000000981:diagnostic imaging; D003287:Contrast Media / Q000008:administration & dosage; D003362:Cost-Benefit Analysis; D057867:Endoleak / Q000145:classification / Q000000981:diagnostic imaging; D005500:Follow-Up Studies; D005583:Fourier Analysis; D006801:Humans; D007083:Iliac Artery / Q000000981:diagnostic imaging; D007091:Image Processing, Computer-Assisted; D007511:Ischemia / Q000000981:diagnostic imaging; D008279:Magnetic Resonance Imaging; D008638:Mesenteric Arteries / Q000000981:diagnostic imaging; D010743:Phospholipids; D011183:Postoperative Complications / Q000145:classification / Q000000981:diagnostic imaging*; D012077:Renal Artery / Q000000981:diagnostic imaging; D012680:Sensitivity and Specificity; D015607:Stents; D013459:Sulfur Hexafluoride; D036542:Tomography, Spiral Computed; D018615:Ultrasonography, Doppler, Color / Q000191:economics; D014781:Viscera / Q000098:blood supply
D003287:Contrast Media; D010743:Phospholipids; C420843:contrast agent BR1; D013459:Sulfur Hexafluoride