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Maximum intensity projection performing method and apparatus

一种最大强度投影、执行方法的技术，应用在3D图像的加工、用于放射诊断的仪器、仪器等方向，能够解决获得麻烦等问题

Inactive Publication Date: 2007-10-10
GE MEDICAL SYST GLOBAL TECH CO LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, it is rather cumbersome to obtain several MIP images in different projection directions

Method used

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  • Maximum intensity projection performing method and apparatus
  • Maximum intensity projection performing method and apparatus
  • Maximum intensity projection performing method and apparatus

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Embodiment Construction

[0023] A best mode for carrying out the present invention will be described below with reference to the accompanying drawings. The invention is not limited to the best modes for carrying out the invention. FIG. 1 is a block diagram showing the configuration of an image processing apparatus.

[0024] This device is an example of the best mode for carrying out the invention. An example of the best way of implementing the invention in relation to a maximum intensity projection performing device is shown by the configuration of the device. An example of the best mode of carrying out the invention in relation to the method of performing maximum intensity projection is shown by operation of the device.

[0025] As shown in FIG. 1 , the device has a data processing unit 10 , a display unit 20 , an operation unit 30 , a storage unit 40 , and an input / output unit 50 .

[0026] The data processing unit 10 performs predetermined data processing on the data stored in the storage unit 4...

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Abstract

In order to visualize a narrow blood vessel overlapping a thick blood vessel, at the time of performing a maximum intensity projection on three-dimensional image data, three-dimensional image data is weighted with a plurality of weighting functions of different attenuation characteristics along a projection line. Maximum intensity projections are performed on the plurality of pieces of the weighted three-dimensional image data, and results of all of the maximum intensity projections are summed. The weight of the weighting function is zero until the projection line reaches the surface of an image and, after the reach, gradually decreases from an initial value. Alternatively, the weight of the weighting function is zero to some midpoint of the projection line and, after the midpoint, gradually decreases from the initial value. The midpoint is adjustable. The attenuation characteristic is given by an exponential function. Parameters of the exponential function are adjustable.

Description

technical field [0001] The present invention relates to maximum intensity projection (MIP) performing methods and apparatus, and more particularly, to methods and apparatus for performing maximum intensity projection on three-dimensional image data. Background technique [0002] In the case of imaging the dilated state of blood vessels in the body, maximum intensity projection is performed on three-dimensional image data acquired by angiography or the like. Maximum intensity projection is performed by extracting the maximum value image data encountered by a projection line passing through the data space in projection line units. Maximum intensity projection is also known as MIP. An image obtained by maximum intensity projection is also called a MIP image (refer to, for example, Japanese Patent Laid-Open No. Hei 11(1999)-056840). [0003] MIP images do not have depth information. Therefore, the relationship of blood vessels in depth cannot be clearly recognized and it is d...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T15/20A61B6/00A61B5/055A61B6/03G01R33/32G06T1/00
CPCA61B6/481A61B6/463A61B6/504G06T15/08
Inventor H·A·哈格B·克塞西
Owner GE MEDICAL SYST GLOBAL TECH CO LLC
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