Application of image analysis methods for vascular blood flow assessment with angiographic imaging

• Autorzy: Obara B. , Niżankowski R.T.

Warianty tytułu

PL

Wykorzystanie przetwarzania obrazu jako metody analizy naczyń krwionośnych wraz z obrazami anglograficznymi

• Konferencja: PELINCEC International Workshop on "Image Processing in Industrial Information Technology- Methods and Applications" Warsaw, 14-15.10.2004
• Języki publikacji: EN

Abstrakty

EN

The Department of Angiology of Jagiellonian University did research on the treatment of critical limb ischemia with bone-marrow transplantation. Extensive tests of objective and subjective examinations were conducted to evaluate the efficacy of the treatment. One of these test procedures - the analysis of vascular net density in angiographic imaging was supported by quantitative image analysis methods. Angiographic videos made before and after intervention were converted to image sequences. Analyzed images revealed translation of blood vessels in XY plane and differences in brightness. The normalized cross correlation method was used to find the translation vector. The developed image processing algorithm involves initial filtration, top-hat operation, automatic threshold and final filtration of all angiographical images. Volume increment of blood flow per time unit and the length of blood vessels were duly analysed on the segmented images. Further investigations of many patients' angiographical videos, with different parts of the blood system are still required to fully verify the adequacy of the algorithm as a tool supporting the doctor's decisions.

PL

Jednym z kryteriów oceny terapii choroby niedokrwiennej kończyn dolnych jest analiza gęstości netto naczyń krwionośnych w obrazach angiograficznych przy pomocy ilościowej analizy obrazów. Angiograficzne filmy wideo wykonane przed i po interwencji zostały zamienione na postać sekwencji obrazów, a następnie poddane obróbce cyfrowej. Przeprowadzono analizę wzrostu objętości przepływającej krwi w jednostce czasu oraz długości naczynia na podstawie segmentowanych obrazów.

Słowa kluczowe

EN

angiography; image analysis; video

PL

analiza obrazu; angiografia; wideo

• Wydawca: Wydawnictwo SIGMA-NOT
• Czasopismo: Przegląd Elektrotechniczny
• Rocznik: 2005
• Tom: R. 81, nr 3
• Strony: 76--78
• Opis fizyczny: Bibliogr. 21 poz., rys., tab.

Twórcy

autor

Obara B.

• Strata Mechanics Research Institute, Polish Academy of Sciences, Reymonta 27, PL 30-059 Krakow

autor

Niżankowski R.T.

• Division of Angiology, II Department of Internal Medicine, School of Medicine Jagiellonian University, Skawinska 8, 31-066 Cracow, Poland

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