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Vessel size estimat...
Vessel size estimation in peripheral artery interventions : Are angiographic measurements reliable?
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- Stenström, Hugo, 1949- (författare)
- Östergötlands Läns Landsting,Linköpings universitet,Hälsouniversitetet,Medicinsk radiologi,Avdelningen för radiologi US
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- Knutsson, Anders, 1962- (författare)
- Östergötlands Läns Landsting,Linköpings universitet,Hälsouniversitetet,Institutionen för medicin och vård,Avdelningen för radiologi US
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- Smedby, Örjan, 1956- (författare)
- Östergötlands Läns Landsting,Linköpings universitet,Hälsouniversitetet,Medicinsk radiologi,Avdelningen för radiologi US,Centrum för medicinsk bildvetenskap och visualisering, CMIV
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(creator_code:org_t)
- 2016-08-30
- 2005
- Engelska.
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Ingår i: Acta Radiologica. - : SAGE Publications. - 0284-1851 .- 1600-0455. ; 46:2, s. 163-169
- Relaterad länk:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- 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.
Nyckelord
- angioplasty
- diameter
- digital
- quantitative angiography
- visual
- MEDICINE
- MEDICIN
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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