http://www.cnr.it/ontology/cnr/individuo/prodotto/ID109158

Assessment of Myocardial Perfusion with Multi Detector Computed Tomography (Abstract/Poster in atti di convegno)

Type

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Assessment of Myocardial Perfusion with Multi Detector Computed Tomography (Abstract/Poster in atti di convegno) (literal)

Anno

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Alternative label

Coppini G.; Favilla R.; Barbagli B.; Diciotti S.; Lombardo S.; Schlueter M.; Salvatori L.; Canapini C.; Neglia D.; Marraccini P. (2008)
Assessment of Myocardial Perfusion with Multi Detector Computed Tomography
in Computers in Cardiology 2008, Bologna, 14-17/09/2008
(literal)

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Coppini G.; Favilla R.; Barbagli B.; Diciotti S.; Lombardo S.; Schlueter M.; Salvatori L.; Canapini C.; Neglia D.; Marraccini P. (literal)

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In: Computers in Cardiology 2008 (Bologna, 14-17 settembre 2008). Abstract, pp. 147 - 147. IEEE Press, 2008. (literal)

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Current Multi Detector Computed Tomography (MDCT) systems allow the visualization of the entire heart volume at high spatial and density resolution. MDCT imaging is thus opened to a wide spectrum of cardiac applications. Particularly, the spatial distribution of contrast medium in the myocardium may provide valuable information about muscle perfusion and viability. In this view, we have developed a method to quantify the regional contrast enhancement as imaged during standard CT coronary angiography. (literal)

Note

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CNR-IFC, Pisa, Dipartimento Elettronica e Telecomunicazioni Universita' di Firenze (literal)

Titolo

Assessment of Myocardial Perfusion with Multi Detector Computed Tomography (literal)

Abstract

A method to quantify the regional contrast enhancement as imaged during MDCT coronary angiography was de- veloped. The procedure is based on the following steps: 1) Long axis reformatting and interactive selection of ven- tricular volume; 2) Normalization of image gray levels; 3) Extraction of the LV cavity by thresholding and blob growing; 4) LV segmentation by Fast Marching Level Set algorithm; 5) Building of bull-eye maps of the spatial dis- tribution of contrast medium in the myocardium. The method was tested on a dataset including the scans from 10 patients with different perfusion defects. In 5 in- farcted patients PET [13 N ] Ammonia scans were also per- formed: polar maps by CT imaging demonstrated well- defined regional perfusion defects consistent with PET imaging results. (literal)

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