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An atlas of the human heart is drawn using statistics
Date:2/26/2013

Researchers at Pompeu Fabra University (Spain) have created a high resolution atlas of the heart with 3D images taken from 138 people. The study demonstrates that an average image of an organ along with its variations can be obtained for the purposes of comparing individual cases and differentiating healthy forms from pathologies.

"This atlas is a statistical description of how the heart and its components such as the ventricles and the atrium look," as explained to SINC by Corn Hoogendoorn, researcher at the CISTIB centre of the Pompeu Fabra University.

Scientists from this university have managed to create a representation of the average shape of the heart and its variations with images from 138 fully functioning hearts taken using multislice computed tomography. This technique offers three-dimensional and high resolution X-ray.

"In our analysis the population group included 138 people but it could be applied to much larger populations," comments Hoogendoorn. "We demonstrated the feasibility of constructing this type of atlas using many subjects, with an acceptable level of manual parameter tuning, while still providing good numeric results".

To create this cardiac map the researchers have developed a statistical model capable of managing high quantities of information provided by individual images. It can also collect temporary variations, given that the heart is never motionless.

The level of detail and the possibility to extend the atlas give it "an advantage over the majority of cardiac models present to date." This is the case according to the conclusions of the study, which was published in the 'IEEE Transactions on Medical Imaging' journal.

The researchers believe that the study can be applied to medical image processing, especially when segmenting, or in other words, properly differentiating a structure to be analysed from the rest of the image.

"The statistics of the atlas o
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Contact: SINC
info@agenciasinc.es
34-914-251-820
FECYT - Spanish Foundation for Science and Technology
Source:Eurekalert  

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