Journal Article10.1007/S00261-004-0171-X
Infected aortic aneurysms: CT features
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TL;DR: The CT features of infected aortic aneurysms including early-stage features, advanced- stage features, and complications are presented.
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Abstract: Infected aortic aneurysm is an uncommon life-threatening disease that exposes the patient to uncontrolled sepsis and aortic rupture. Infected aortic aneurysm is defined as a lesion of the arterial wall due to bacterial contamination. Two main routes have been described that can result in an infected aneurysm. The first route refers to cases in which there is a source of septic emboli or bacteremia. Endocarditis, in the preantibiotic era, was the classic source of septic emboli; intravenous drug abuse is the current leading cause. The second route refers to cases of extraaortic infection, such as spondylodiscitis, with secondary invasion of adjacent aorta. The most common organisms causing infected aortic aneurysms in recent years are Staphylococcus aureus, Salmonella, Escherichia coli, and Pseudomonas [1, 2]. Clinical diagnosis of infected abdominal aortic aneurysms is based on the presence of signs and symptoms of infection (fever, leukocytosis, and abdominal or back pain) combined with a pulsatile mass [2, 3]. Patients with such symptoms are often referred for computed tomography (CT) to exclude an abscess, diverticulitis, or other potential infectious focus. We present the CT features of infected aortic aneurysms including early-stage features, advanced-stage features, and complications. Early-stage features
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Citations
Infected (mycotic) aneurysms: spectrum of imaging appearances and management
Wai-Kit Lee,Peter J. Mossop,Andrew F. Little,Gregory J Fitt,John Vrazas,Jenny K. Hoang,Oliver Hennessy +6 more
TL;DR: Current state-of-the-art imaging modalities, such as multidetector computed tomography and magnetic resonance imaging, have replaced conventional angiography as minimally invasive techniques for detection of infected aneurysms in clinically suspected cases, as well as characterization of infected aorta, peripheral arteries, cerebral arteries, and vascular mapping for treatment planning in confirmed cases.
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Abdominal aortic aneurysm: pictorial review of common appearances and complications.
TL;DR: The CTA findings in AAA and its complications including rupture, infection, aorto-enteric fistula and aorte-caval fistula are discussed.
Cross-sectional imaging of aortic infections
TL;DR: This review focuses on the cross-sectional imaging appearance of aortic infections, including aortsic valve endocarditis, pyogenic aortitis, mycotic aneurysm and aorti graft infections, with an emphasis on CT, MRI and PET/CT appearance.
•Journal Article
Clinical and microbiological characteristics of mycotic aneurysms in a medical center in southern Taiwan.
TL;DR: The relationship between the anatomic site of mycotic aneurysm and the spectrum of culprit bacteria may help clinicians promptly choose appropriate antibiotic regimens on an empirical basis.
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Not just an aneurysm, but an infected one: a case report and literature.
TL;DR: Several retrospective studies that were published between 1997 and 2005 were reviewed to help the reader understand the patient population, risk factors, assessment, diagnosis, management, and long-term follow-up of patients with mycotic aneurysms.
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References
Infected aneurysms of the infrarenal abdominal aorta: diagnostic criteria and therapeutic strategy.
TL;DR: Poor prognostic factors included spondylitis and Salmonella infection that were found to greatly enhance the risk of postoperative graft infection following in situ reconstruction following surgical treatment of infected aneurysms of the infrarenal abdominal aorta.
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Mycotic aneurysms of the aorta: radiologic features.
TL;DR: In four patients with clinical manifestations suggesting mycotic aneurysm of the aorta, a combination of CT and angiographic imaging provided accurate diagnostic information for planning adequate and early surgical treatment.
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•Journal Article
Infected aortic aneurysms: CT diagnosis.
TL;DR: In this article, the authors compared arteriography and computed tomography (CT) for the diagnosis of infected aortic aneurysms and found that CT, with contrast enhancement, was more sensitive in early stages of the disease and provided a more complete depiction of the anatomic abnormalities.
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CT and MRI of mycotic aneurysms of the abdominal aorta.
TL;DR: In two of three patients with mycotic aneurysms of the abdominal aorta, diagnosis was delayed, with a fatal outcome in one patient, and a combination of studies, such as indium white blood cell scanning and anatomical imaging modalities, may be necessary to arrive at the correct diagnosis.
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Infected abdominal aortic aneurysm: early CT findings
TL;DR: Computed tomographic findings at the early stage of infected abdominal aortic aneurysm in three patients showed periaortic mass and increased fat density were the characteristic findings of early aorta infection on CT, similar findings caused by other diseases may be difficult to differentiate by imaging alone.
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