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Spatial characterization of a structure located within an object by identifying 2D representations of the structure within section planes

A technology of spatial characteristics and cross-sections, which is applied in C-arm systems or computer tomography systems, spatial characteristics of medical devices, display and quantitative analysis of objects, and can solve problems such as determining and monitoring stent expansion difficulties

Inactive Publication Date: 2009-09-02
KONINK PHILIPS ELECTRONICS NV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, it is very difficult to identify and monitor stent expansion on images provided by X-ray imaging and / or by IVUS

Method used

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  • Spatial characterization of a structure located within an object by identifying 2D representations of the structure within section planes
  • Spatial characterization of a structure located within an object by identifying 2D representations of the structure within section planes
  • Spatial characterization of a structure located within an object by identifying 2D representations of the structure within section planes

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Embodiment Construction

[0069] The illustrations in the figures are schematic. Note that in different figures, similar or identical elements are provided with the same reference signs, or with reference signs that differ from the corresponding reference signs only in the first digit.

[0070] Refer to the attached Figure 1a and 1b A medical X-ray imaging system 100 according to an embodiment of the present invention includes a rotary arm scanning system (C-arm) 101 supported near a patient table 102 by a robot arm 103 . Inside the housing of the swivel arm 101 are provided an X-ray tube 104 and an X-ray detector 105 . An X-ray detector 105 is arranged and configured to receive X-rays 106 passing through a patient 107 representing a subject under examination. Furthermore, the X-ray detector 105 is adapted to generate an electrical signal representative of its intensity distribution. By moving the swivel arm 101 , the X-ray tube 104 and detector 105 can be placed in any desired position and orienta...

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Abstract

It is described a virtual pullback as a visualization and quantification tool that allows an interventional cardiologist to easily assess stent expansion. The virtual pullback visualizes the stent and / or the vessel lumen similar to an Intravascular Ultrasound (IVUS) pullback. The virtual pullback is performed in volumetric data along a reference line. The volumetric data can be a reconstruction of rotational 2D X-ray attenuation data. Planes perpendicular to the reference line are visualized as the position along the reference line changes. This view is for interventional cardiologists a very familiar view as they resemble IVUS data and may show a section plane through a vessel lumen or a stent. In these perpendicular section planes automatic measurements, such as minimum and maximum diameter, and cross sectional area of the stent can be calculated and displayed. Combining these 2D measurements allows also volumetric measurements to be calculated and displayed.

Description

technical field [0001] The present invention relates generally to the field of digital image processing, particularly for medical purposes in order to provide visualization and quantitative analysis of objects inserted into a patient's body. [0002] In particular, the invention relates to a method for spatially characterizing a structure located within an object under examination, in particular a medical device inserted into a patient. [0003] Furthermore, the invention relates to a data processing device and a medical X-ray examination apparatus comprising said data processing device, in particular a C-arm system or a computer tomography system, wherein said data processing device is suitable for describing The spatial characteristics of structures located within the object under examination, in particular to describe the spatial characteristics of a medical device inserted into a patient. [0004] Furthermore, the invention relates to a computer-readable medium and a prog...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T7/00
CPCG06T19/00G06T2207/30101G06T7/0012G06T2219/008
Inventor G·斯洪恩贝格O·温克B·莫瓦萨吉
Owner KONINK PHILIPS ELECTRONICS NV
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