Detection of Type II Endoleak After Endovascular Aortic Repair: Comparison Between Magnetic Resonance Angiography and Blood-Pool Contrast Agent and Dual-Phase Computed Tomography Angiography

Journal Article · Wed Dec 15 04:00:00 EST 2010 · Cardiovascular and Interventional Radiology

DOI:https://doi.org/10.1007/S00270-010-9984-X· OSTI ID:21428876

Wieners, Gero ^[1]; Meyer, Frank; Halloul, Zuhir ^[2]; Peters, Nils; Ruehl, Ricarda; Dudeck, Oliver ^[1]; Tautenhahn, Joerg ^[2]; Ricke, Jens; Pech, Maciej ^[1]

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1. University Hospital, Department of Radiology and Nuclear Medicine (Germany)
2. University Hospital, Department of Surgery (Germany)

PurposeThis prospective study was designed to assess the diagnostic value of magnetic resonance angiography (MRA) with blood-pool contrast agent (gadofosveset) in the detection of type-II endoleak after endovascular aortic repair (EVAR).MethodsThirty-two patients with aortic aneurysms who had undergone EVAR were included in this study. All patients were examined by dual-phase computed tomography angiography (CTA) as well as MRA with gadofosveset in the first-pass and steady-state phases. Two independent readers evaluated the images of CTA and MRA in terms of endoleak type II, feeding vessel, and image quality.ResultsMedian follow-up-time after EVAR was 22 months (range 4 to 59). Endoleak type II was detected by CTA in 12 of 32 patients (37.5%); MRA detected endoleak in all of these patients as well as in another 9 patients (n = 21, 65.6%), of whom the endoleaks in 6 patients showed an increasing diameter. Most endoleaks were detected in the steady-state phase (n = 14). The decrease in diameter of the aneurysmal sac was significantly greater in the patients without a visible endoleak that was visible on MRA (P = 0.004). In the overall estimation of diagnostic accuracy, MRA was judged superior to CTA in 66% of all examinations.ConclusionMRA with gadofosveset appeared superior to CTA, and has higher diagnostic accuracy, in the detection of endoleak after EVAR.

• OSTI ID: 21428876
• Journal Information: Cardiovascular and Interventional Radiology, Journal Name: Cardiovascular and Interventional Radiology Journal Issue: 6 Vol. 33; ISSN 0174-1551; ISSN CAIRDG
• Country of Publication: United States
• Language: English

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