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Visualization of dialysis fistula by computed tomography using time-resolved 3D volume rendering


Svensson, Anders; Fischer, Michael A; Cederlund, Kerstin; Aspelin, Peter; Leidner, Bertil; Brismar, Torkel B (2015). Visualization of dialysis fistula by computed tomography using time-resolved 3D volume rendering. Annals of Vascular Surgery, 29(3):573-577.

Abstract

BACKGROUND To evaluate the function of arteriovenous (AV) dialysis fistula using dynamic computed tomography (CT) and time-resolved 3-dimensional (3D) volume rendering (VR). METHODS Seven patients referred for angiographic CT examination of the AV dialysis fistula were enrolled. Twenty-four grams of iodine were administered intravenously (iomeprol 400 mg I/mL at 6 mL/sec) followed by a 50-mL saline flush. Dynamic scanning was performed for 15-24 sec. CT images were then postprocessed on a dedicated workstation creating time-resolved 3D VR images and movies. RESULTS All studies showed good image quality showing pathology in 6 of 7 patients. Unexpected findings were observed in 1 patient, aneurysm (n = 1). Radiation dose was 5 mSv. CONCLUSIONS The function of AV dialysis fistula can be visualized using dynamic CT and time-resolved 3D VR.

Abstract

BACKGROUND To evaluate the function of arteriovenous (AV) dialysis fistula using dynamic computed tomography (CT) and time-resolved 3-dimensional (3D) volume rendering (VR). METHODS Seven patients referred for angiographic CT examination of the AV dialysis fistula were enrolled. Twenty-four grams of iodine were administered intravenously (iomeprol 400 mg I/mL at 6 mL/sec) followed by a 50-mL saline flush. Dynamic scanning was performed for 15-24 sec. CT images were then postprocessed on a dedicated workstation creating time-resolved 3D VR images and movies. RESULTS All studies showed good image quality showing pathology in 6 of 7 patients. Unexpected findings were observed in 1 patient, aneurysm (n = 1). Radiation dose was 5 mSv. CONCLUSIONS The function of AV dialysis fistula can be visualized using dynamic CT and time-resolved 3D VR.

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Additional indexing

Item Type:Journal Article, refereed, original work
Communities & Collections:04 Faculty of Medicine > University Hospital Zurich > Clinic for Diagnostic and Interventional Radiology
Dewey Decimal Classification:610 Medicine & health
Language:English
Date:April 2015
Deposited On:23 Sep 2015 14:54
Last Modified:08 Dec 2017 14:04
Publisher:Elsevier
ISSN:0890-5096
Publisher DOI:https://doi.org/10.1016/j.avsg.2014.08.031
PubMed ID:25476747

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