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  • 1
    ISSN: 1432-1084
    Keywords: Key words: Mesenteric arteries – Gastrointestinal tract – Ischemia – Interventional procedures – Stents and prostheses
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract. Spontaneous and isolated dissection of the superior mesenteric artery is a rare and often fatal event which has been successfully treated by surgery in several reported cases. We present a patient with acute mesenteric ischemia due to superior mesenteric artery dissection who was successfully treated by percutaneous endovascular placement of a Wallstent.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    European radiology 7 (1997), S. 981-989 
    ISSN: 1432-1084
    Keywords: Key words: 3D contrast-enhanced MR angiography ; Gadolinium ; Aorta ; Pulmonary arteries
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract. Magnetic resonance angiography (MRA) has become a useful non-invasive imaging technique for the assessment of vascular disease. Due to limitations such as respiratory motion artefacts, saturations problems, and long acquisition times, applications of MRA in the thorax have largely been restricted to imaging of the aorta. The recent introduction of breath-hold three-dimensional (3D) contrast-enhanced MRA promises not only to enhance conventional MR protocols for aortic imaging, but to extend the clinical indications of MRI to diseases affecting other vascular structures of the thorax, most notably the pulmonary arteries. This article describes the technical aspects of contrast-enhanced 3D MRA and reviews existing and potential future clinical applications.
    Type of Medium: Electronic Resource
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  • 3
    ISSN: 1432-2102
    Keywords: Key words Renovascular hypertension • Renal insufficiency • Catheter angiography • 3D magnetic resonance angiography ; Schlüsselwörter Renovaskuläre Hypertonie • Niereninsuffizienz • Katheterangiographie • 3D-Magnetresonanzangiographie
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Zusammenfassung Einleitung: Nierenarterienstenosen unterschiedlicher Genese können zu arterieller Hypertonie sowie im weiteren Verlauf auch zu einem Nierenversagen führen. Es stehen verschiede invasive wie auch nicht-invasive diagnostische Methoden zur Verfügung. Material und Methode: Für die Bestimmung der Wertigkeit der gadoliniumverstärkten 3D-Magnetresonanz-(MR-)Angiographie (3D MRA) wurde in 49 Patienten die 3D-MRA-Technik mit der konventionellen Katheterangiographie (KA) der Nierenarterien (NA) als Standarduntersuchung verglichen. Für die atemangehaltene (23–28 s), kontrastverstärkte 3D MRA wurde paramagnetisches Kontrastmittel (0,3 mmol/kg KG Gd-DTPA) mit einem automatisierten Injektor intravenös im Bolus appliziert. Die zeitliche Abfolge von Kontrastmittelgabe und Datenakquisition wurde mit einem Testbolus bestimmt. Ergebnisse: Die Einteilung der NA-Stenosen in der MRA und KA war bei 31 von 45 Stenosen (68,8 %) konkordant. Für den Nachweis der NA-Läsionen im allgemeinen lag die Sensitivität sowie Spezifität der MRA bei 84 und 96 %, für klinisch relevante Läsionen bei 90 % bzw. 98 %. Schlußbemerkung: Die 3D MRA-Untersuchungstechnik erlaubt eine zuverlässige Beurteilung von Morphologie und Pathologie der Nierenarterien.
    Notes: Summary Purpose: To determine the value of gadolinium-enhanced, three-dimensional breathhold Magnetic Resonance Angiography (MRA) in the assessment of the aorta and renal arteries in comparison to conventional arteriography (CA). Patients and methods: 49 patients were evaluated with both CA and 3D MRA. 0.3 mmol/kg BW gadolinium-DTPA was administered intravenously in a bolus, using an automated injector. A test bolus method was used for timing of the bolus and beginning of the data acquisition. The intraarterial CA was used as the gold standard. Results: MRA-based assessment of renal artery stenosis was identical with CA in 31 of 45 stenoses (68.8 %). Sensitivity and specificity for assessment of renal arterial disease by MRA were 84 % and 96 %; for clinically relevant lesions they amounted to 90 % and 98 %. Conclusion: The presented contrast-enhanced 3D MRA technique allows for the reliable assessment of renal arterial morphology and pathology.
    Type of Medium: Electronic Resource
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