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Vessel size estimation in peripheral artery interventions: Are angiographic measurements reliable?
Linköping University, Faculty of Health Sciences. Linköping University, Department of Medicine and Care, Medical Radiology. Östergötlands Läns Landsting, Centre for Medical Imaging, Department of Radiology UHL.
Linköping University, Faculty of Health Sciences. Linköping University, Department of Medicine and Care. Östergötlands Läns Landsting, Centre for Medical Imaging, Department of Radiology UHL.
Linköping University, Faculty of Health Sciences. Linköping University, Department of Medicine and Care, Medical Radiology. Östergötlands Läns Landsting, Centre for Medical Imaging, Department of Radiology UHL. Linköping University, Center for Medical Image Science and Visualization, CMIV.ORCID iD: 0000-0002-7750-1917
2005 (English)In: Acta Radiologica, ISSN 0284-1851, E-ISSN 1600-0455, Vol. 46, no 2, 163-169 p.Article in journal (Refereed) Published
Abstract [en]

Purpose: To describe and evaluate a new technique for angiographic measurement of arterial diameters and to make a comparison with other common techniques. Material and Methods: The Angiometer has a radiopaque metal body with six cylindrical segments of varying diameter. Arterial diameter is estimated by visually relating the vessel to these segments. The measurements (method A) were compared: to measuring in relation to a ruler on the table-top by means of compasses (B), to an automated measurement technique (quantitative angiography) utilizing calibration to a catheter of known diameter (C), and to a computer-based distance measurement using the ruler on the table-top as reference (D). Twenty-five patients were studied. Each method was used twice by each of two independent observers. A phantom with four drilled holes, filled with contrast agent, was also studied. Results: The coefficient of variation was highest for method C and lowest for method A. Correlations between readings were highest for method A and lowest for method C. Mean diameter values were highest for method A and lowest for methods B and D. In the phantom experiments, sizes were overestimated by between 5% and 9% with method A, and underestimated by between 4% and 27% with the other methods. Conclusion: In terms of reproducibility and accuracy, the proposed method compares favorably with alternative methods.

Place, publisher, year, edition, pages
2005. Vol. 46, no 2, 163-169 p.
Keyword [en]
angioplasty, diameter, digital, quantitative angiography, visual
National Category
Medical and Health Sciences
Identifiers
URN: urn:nbn:se:liu:diva-30232DOI: 10.1080/02841850510015992Local ID: 15736OAI: oai:DiVA.org:liu-30232DiVA: diva2:251054
Available from: 2009-10-09 Created: 2009-10-09 Last updated: 2013-09-05

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Stenström, HugoSmedby, Örjan

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Faculty of Health SciencesMedical RadiologyDepartment of Radiology UHLDepartment of Medicine and CareCenter for Medical Image Science and Visualization, CMIV
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