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Diagnosis of prosthetic aortic graft infection by magnetic resonance imaging
Par A. Olofsson, MD, Wolfgang Auffermann, MD, Charles B. Higgins, MD, Gilberto N. Rabahie, MD, Nuno Tavares, MD, Ronald J. Stoney, MD Journal of Vascular Surgery Volume 8, Issue 2, Pages (August 1988) DOI: / (88) Copyright © 1988 Society for Vascular Surgery and International Society for Cardiovascular Surgery, North American Chapter Terms and Conditions
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Fig. 1 T1-weighted MRI (a) shows fluid collection (*) in right groin that characteristically brightens up on the T2-weighted image (b) Rim of low intensity signal surrounding the abscess (arrowheads) corresponds to its fibrous capsule. Graft is indicated by arrow(b) (patient 1). (a, SE, TE = 30 milliseconds, TR = 2 seconds; b, SE, TE = 60 milliseconds; TR = 2 seconds.) T2-weighted coronal projection (c and d) of the same patient shows encapsulated abscess surrounding graft. (Low intensity within high intensity abscess represents bypass graft.) Journal of Vascular Surgery 1988 8, DOI: ( / (88) ) Copyright © 1988 Society for Vascular Surgery and International Society for Cardiovascular Surgery, North American Chapter Terms and Conditions
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Fig. 2 T2-weighted MRI of patient 4 shows abscess in right groin and small perigraft fluid collection in left groin (arrowheads). Journal of Vascular Surgery 1988 8, DOI: ( / (88) ) Copyright © 1988 Society for Vascular Surgery and International Society for Cardiovascular Surgery, North American Chapter Terms and Conditions
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Fig. 3 CT scan (A) of patient 10 with percutaneously draining retroperitoneal perigraft abscess shows contrast medium in abscess cavity. (TE = 60 milliseconds; TR = 2000 milliseconds.) Corresponding T2-weighted MRI (B) demonstrates same abscess without contrast medium. (MRI done before CT.) Journal of Vascular Surgery 1988 8, DOI: ( / (88) ) Copyright © 1988 Society for Vascular Surgery and International Society for Cardiovascular Surgery, North American Chapter Terms and Conditions
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Fig. 4 Proton density MRI of retroperitoneal portion of aortobifemoral graft (patient 7) surrounded by noninfected large pseudoaneurysm. Note fibrous capsule (arrowheads) and low-intensity signal of clotted blood (*). Graft is marked by arrows. (SE, TE = 30 milliseconds; TR = 1000 milliseconds.) Journal of Vascular Surgery 1988 8, DOI: ( / (88) ) Copyright © 1988 Society for Vascular Surgery and International Society for Cardiovascular Surgery, North American Chapter Terms and Conditions
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