A New Approach to the Presentation of Myocardial SPECT Images—Radial Slices—Data Reduction without Loss of InformationReportar como inadecuado




A New Approach to the Presentation of Myocardial SPECT Images—Radial Slices—Data Reduction without Loss of Information - Descarga este documento en PDF. Documentación en PDF para descargar gratis. Disponible también para leer online.

Objective: SPECT data from myocardial perfusion imaging MPI are normally displayedas a set of three slices orthogonalto the left ventricular LV long axis. For data presentation, the images areorientated about the LV long axis. Therefore, radial slices provide a suitablealternative to standard orthogonal slices, with the advantage of requiring fewer slices to adequately represent the data. In this study, a semi-automatic method is developed fordisplaying MPI SPECT data as a set of radial slices orientated about the LVaxis. The aim is to reduce the number of slices viewed without loss ofinformation and independently from the heart size. Method: Standardshort axis slices, orientated perpendicularto the LV axis, are utilized.The skeleton of the segmented myocardium isfound and the true LV axis is determinedin each central long slice. The LV axis of the whole volume is determined byaligning the axes of all slices. Result: Radial slices centered about this axis were generated by integration overa sector equal to the resolution of the imaging system which was of theorder of 1.2 cm. Therefore, assuming a mean LV diameter of 8 cm, 20 slices weresufficient to represent a non-gated study. Gated information could beadequately displayed with 4 slices integrated over an angle of 45. Conclusion: A semi-automatic method for generating radial slices from SPECT MPI shortaxis slices has been developed.

KEYWORDS

Myocardial Perfusion SPECT; Cardiac Left Ventricle; Radial Slices; Left Ventricular Long Axis

Cite this paper

Darvish, N. , Öçba, F. , Muhammed, H. and Bone, D. 2013 A New Approach to the Presentation of Myocardial SPECT Images—Radial Slices—Data Reduction without Loss of Information. Engineering, 5, 113-117. doi: 10.4236-eng.2013.510B023.





Autor: Niloufar Darvish, Fatma Nadide Öçba, Hamed Hamid Muhammed, Dianna Bone

Fuente: http://www.scirp.org/



DESCARGAR PDF




Documentos relacionados