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Instantaneous visualization of contrast agent concentration in imaging applications

A contrast agent, imaging technology, applied in the field of medical imaging, can solve the problem of time-consuming recorded information

Active Publication Date: 2008-11-12
BRACCO SUISSE SA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] In any event, parametric analysis techniques typically require time-consuming processing of the recorded information; therefore, the results obtained are only available offline (i.e. not during the perfusion procedure real-time use)

Method used

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  • Instantaneous visualization of contrast agent concentration in imaging applications
  • Instantaneous visualization of contrast agent concentration in imaging applications
  • Instantaneous visualization of contrast agent concentration in imaging applications

Examples

Experimental program
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Embodiment Construction

[0035] Referring specifically to FIG. 1, there is shown a medical imaging system comprising an ultrasound scanner 100; the scanner 100 is used to analyze a body part 105 of a patient 110, in particular to assess its perfusion (eg, for diagnostic purposes).

[0036] In particular, the ultrasound scanner 100 includes a central unit 115 having a hand-held transmit-receive imaging probe 120 (eg, of the array type). Imaging probe 120 emits ultrasound waves consisting of a series of insonifying ultrasound pulses (eg, centered at frequencies between 2 MHz and 10 MHz) and receives (raw) radio frequency (RF) echo signals generated by reflections of the ultrasound pulses; To this end, the imaging probe 120 is equipped with a transmit / receive multiplexer, which allows the imaging probe 120 to be used in pulse-echo mode.

[0037]Inside the central unit 115 is a motherboard 125 on which are mounted electronic circuits controlling the operation of the ultrasound scanner 100, such as a micro...

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PUM

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Abstract

A system (600) is proposed for imaging a body part including a tissue, the body part being perfused with a contrast agent. The system includes means (603- 606) for providing a sequence of original images offering a digital representation over time of the body-part, each original image including a plurality of original values each one indicative of a response to an interrogation signal of a corresponding location of the body-part possibly including the contrast agent with a contribution of the tissue substantially reduced.; The system further includes: means (609-651) for generating an overlaid image for each one of a set of selected original images, for each one of a set of selected locations the overlaid image including an overlaid value consisting of: a) a linearized value derived from the corresponding original value to be substantially proportional to a concentration of the contrast agent in the selected location when the linearized value reaches a predefined threshold, or otherwise b) a compressed value depending non-linearly on the corresponding response to the interrogation signal; and means (654-660) for displaying the overlaid images in succession.

Description

technical field [0001] The invention relates to the field of medical imaging. More particularly, the present invention relates to contrast agent imaging applications. Background technique [0002] In the field of medically applied devices, imaging techniques are well established to analyze patient body parts in a substantially non-invasive manner, for example imaging may be based on recording echo signals produced by the application of ultrasound waves to a body part. For this purpose, contrast media (e.g., consisting of a suspension of phospholipid-stabilized gas-filled microbubbles in ultrasound applications) are usually administered by the patient; contrast media are used as effective ( Ultrasound) reflector whereby the contrast agent enhances the visualization of blood in the vasculature within the body part where it is located. In particular, this technique is commonly used to assess blood perfusion; in fact, since the contrast agent flows at the same speed as the pat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T5/50G06T7/00A61B8/00
CPCA61B8/08A61B8/481G01S7/52026G01S7/52038G01S7/52041G01S7/52071G01S7/52074
Inventor P·弗林京N·罗格宁M·阿迪特
Owner BRACCO SUISSE SA