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Scanning method, device and image reconstruction method and device

An image reconstruction and half-scanning technology, which is applied in image enhancement, image generation, image analysis, etc., can solve the problems of unfavorable protection and application of inspected parts, and achieve the effect of saving scanning dose

Active Publication Date: 2021-02-05
NEUSOFT MEDICAL SYST CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, during the rotation process of the frame, the X-ray tube on the frame is always in the state of unwinding, which is not conducive to the protection of some inspected parts and some special applications.

Method used

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  • Scanning method, device and image reconstruction method and device
  • Scanning method, device and image reconstruction method and device
  • Scanning method, device and image reconstruction method and device

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Embodiment Construction

[0043] Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the drawings, the same numerals or similar elements in different drawings unless otherwise indicated. The implementations described in the following exemplary embodiments do not represent all implementations consistent with this application. Rather, they are merely examples of apparatuses and methods consistent with aspects of the present application as recited in the appended claims.

[0044] The terminology used in this application is for the purpose of describing particular embodiments only, and is not intended to limit the application. As used in this application and the appended claims, the singular forms "a", "the", and "the" are intended to include the plural forms as well, unless the context clearly dictates otherwise. It should also be understood that the term "and / or" as used herein refers...

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Abstract

This application proposes a scanning method, device, and image reconstruction method and device. A scanning method includes: under the condition of satisfying the helical half-scan, determining the starting and ending angles of the X-ray tube of the helical half-scan and determining the helical half-scan The pitch value of the half-scan, wherein, the helical half-scan is a scan in which the X-ray tube only radiates X-rays at a part of the continuous angle during the frame rotation process; As scanning parameters, the object is scanned to obtain helical half-scan data. It can be seen that, in the technical solution of the present application, the X-ray tube on the rack can be controlled to emit X-rays only at partial angles during the rotation of the rack, so that the image reconstruction requirements of some inspected images can be realized. Part protection and meet some special applications, but also save the scanning dose.

Description

technical field [0001] The present application relates to the technical field of CT (Computed Tomography, computerized tomography), in particular to a scanning method, device, and image reconstruction method and device. Background technique [0002] At present, conventional CT scanning methods are divided into tomographic scanning and helical scanning. In tomography, the scanning table moves to the pre-designated scanning position first, and then the X-ray tube starts to scan. When the scanning of one scanning position ends, the scanning table moves to the next designated scanning position, and the X-ray tube starts again. Radial scanning, the scanning speed of this scanning method is relatively slow, and the resolution of the scanning result in the z direction (moving direction of the scanning bed) is relatively low. [0003] Helical scanning means that while the gantry of the CT equipment rotates, the scanning bed advances at a certain speed. This scanning method has a re...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61B6/03G06T11/00
CPCA61B6/032A61B6/4411A61B6/501A61B6/5211A61B6/54G06T11/005G06T2211/40G06T2211/421G06T11/006G06T2207/10081
Inventor 楼珊珊佟丽霞
Owner NEUSOFT MEDICAL SYST CO LTD
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