Author: Fredy Pinheiro

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AUTHOR

Fredy Pinheiro

showing 1 related works from this author

Left-Ventricle Segmentation of SPECT Images of Rats

2015

Single-photon emission computed tomography (SPECT) imaging of the heart is helpful to quantify the left-ventricular ejection fraction and study myocardial perfusion scans. However, these evaluations require a 3-D segmentation of the left-ventricular wall on each phase of the cardiac cycle. This paper presents a fast and interactive graph cut method for 3-D segmentation of the left ventricle (LV) of rats in SPECT images. The method is carried out in three steps. First, 3-D sampling of the LV cavity is made in a spherical-cylindrical coordinate system. Then, a graph-cut-based energy minimization procedure provides delineation of the myocardium centerline surface. From there, it is possible to…

[SDV.IB.IMA]Life Sciences [q-bio]/Bioengineering/ImagingHeart VentriclesBiomedical Engineering030204 cardiovascular system & hematologySingle-photon emission computed tomography030218 nuclear medicine & medical imaging03 medical and health sciences0302 clinical medicineImaging Three-DimensionalCutmedicineAnimalsComputer visionSegmentationLongitudinal Studies[ SDV.IB.IMA ] Life Sciences [q-bio]/Bioengineering/ImagingComputingMilieux_MISCELLANEOUSMathematicsTomography Emission-Computed Single-Photonmedicine.diagnostic_testCardiac cycleOrientation (computer vision)business.industryImage segmentationRatsTomographyArtificial intelligencebusinessEmission computed tomography

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