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Acquisition protocol assessment apparatus

A protocol and evaluation method technology, applied in medical science, computerized tomography scanners, instruments for radiological diagnosis, etc., can solve problems such as not taking into account imaging procedures, not taking into account the limitations of CT system scanning systems, etc.

Pending Publication Date: 2017-10-17
KONINKLIJKE PHILIPS ELECTRONICS NV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Thus, in one instance, the CT scanner may not be able to operate with automatically determined optimized acquisition protocol parameter values
For example, the computer-implemented algorithm may not take into account the scanning system limitations of the CT system (e.g., available kVp, mAs, etc. settings)
Furthermore, this approach does not take into account the imaging procedure and thus different acquisition protocol parameter values ​​may be more appropriate for a particular imaging procedure and / or patient

Method used

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Embodiment Construction

[0016] figure 1 An imaging system 100 is illustrated, such as a computed tomography (CT) scanner. The imaging system 100 includes a generally stationary gantry 102 and a rotating gantry 104 . The rotating gantry 104 is rotatably supported by the stationary gantry 102 and rotates about an examination region 106 about a longitudinal or z-axis 108 . A patient support 110 , such as a bed, supports an object or subject, such as a human patient, in the examination area 106 .

[0017] A radiation source 112 , such as an X-ray tube, is supported by a rotating gantry 104 . The radiation source 112 emits ionizing radiation from the focal spot, and the radiation traverses the examination region 106 and the object or subject therein. A source collimator collimates the radiation to form a generally cone, wedge, fan, or other shaped radiation beam.

[0018] The two-dimensional radiation sensitive detector array 114 forms an angular arc opposite the radiation source 112 across the examin...

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Abstract

A method includes generating, via a dose estimator (208), a dose map indicative of an estimated dose deposited for a subject based on acquisition protocol parameter values of an acquisition protocol of an imaging system (100), and generating, via a noise estimator (210), at least one of a noise map indicative of an estimated image noise based on the acquisition protocol parameter values or a contrast-to-noise map based on the noise map and an attenuation map. The method further includes displaying, via a display (216), the dose and noise maps in a human readable format.

Description

[0001] This application is a divisional application of the invention patent application with the application number 201080047453.X and the name "acquisition protocol evaluation equipment" submitted on September 16, 2010. technical field [0002] The following generally refers to the acquisition protocol evaluation device and is described with a specific application to computed tomography (CT). However, it is also used in other medical imaging applications as well as non-medical imaging applications. Background technique [0003] Computed tomography (CT) scanners include an X-ray tube mounted on a rotatable gantry that rotates about a longitudinal or z-axis around an examination region. The x-ray tube emits ionizing radiation which traverses the examination region and irradiates the patient therein. The detector array forms an angular arc opposite the x-ray tube in the examination region. The detector array detects radiation traversing the examination region and generates p...

Claims

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Application Information

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IPC IPC(8): A61B6/00A61B6/03
CPCA61B6/032A61B6/42A61B6/544G01T1/02
Inventor M·贝尔特拉姆J·维格特K·M·布朗
Owner KONINKLIJKE PHILIPS ELECTRONICS NV