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Method and system for heart isolation in cardiac computed tomography volumes

一种容积、心脏的技术，应用在计算、图像分析、图像增强等方向

Active Publication Date: 2012-09-12
SIEMENS AG +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This presents a significant challenge to cardiac segmentation algorithms

Method used

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  • Method and system for heart isolation in cardiac computed tomography volumes
  • Method and system for heart isolation in cardiac computed tomography volumes
  • Method and system for heart isolation in cardiac computed tomography volumes

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Embodiment Construction

[0023] The present invention relates to methods and systems for heart separation in 3D medical images, such as 3D cardiac CT volumes. Embodiments of the invention are described here to give a visual understanding of the heart isolation method. Digital images often consist of digital representations of one or more objects (or shapes). Digital representations of objects are often described here in terms of recognizing and manipulating objects. Such operations are virtual operations performed in the computer system's memory or other circuitry / hardware. Accordingly, it should be understood that embodiments of the present invention may be implemented within a computer system using data stored within the computer system.

[0024] Cardiac separation is highly relevant for many applications. For example, coronary arteries can be clearly visualized in 3D after separating the heart from adjacent tissues such as the lungs, liver, and chest cavity. figure 1 Schematic illustration of t...

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Abstract

A method and a system for isolating the heart in a 3D volume, such as a cardiac CT volume, for patients with coronary artery bypasses are disclosed. An initial heart isolation mask is extracted from a 3D volume, such as a cardiac CT volume. The aortic root and ascending aorta are segmented in the 3D volume, resulting in an aorta mesh. The aorta mesh is expanded to include bypass coronary arteries. An expanded heart isolation mask is generated by combining the initial heart isolation mask with an expanded aorta mask defined by the expanded aorta mesh.

Description

[0001] This application claims the benefit of US Provisional Application No. 61 / 417,602, filed November 29, 2011, the disclosure of which is incorporated herein by reference. technical field [0002] The present invention relates to isolating the heart in medical image data, and more particularly to isolating the heart in medical imaging data for patients with coronary artery bypass. Background technique [0003] Heart separation refers to the separation of the heart from other tissues immediately adjacent to the heart, such as the lungs, liver, and chest cavity, in medical image data. Most previous work related to cardiac segmentation focused on segmenting ventricles, especially the left ventricle. Segmentation of the heart as a whole or separation of the heart is relevant for many applications. For example, in a 3D computed tomography (CT) volume, the coronary arteries can be clearly visualized in 3D after separating the heart from adjacent tissues such as the lungs, live...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T19/00G06T5/00
CPCG06T2207/10081G06T2207/20124G06T2207/30048G06T7/11G06T7/149
Inventor 郑冶枫F.维加-希盖拉D.科马尼丘
Owner SIEMENS AG
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