Computer-implemented method for preparing a computed tomography scan, computer program, computer-readable storage medium, and computed tomography system
US-2024298992-A1 · Sep 12, 2024 · US
Radiation tomographic image generating apparatus, and radiation tomographic image generating method
US9486178B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9486178-B2 |
| Application number | US-201214424909-A |
| Country | US |
| Kind code | B2 |
| Filing date | Aug 31, 2012 |
| Priority date | Aug 31, 2012 |
| Publication date | Nov 8, 2016 |
| Grant date | Nov 8, 2016 |
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Abstract
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This invention identifies a metal area of actual measurement projection data from the actual measurement projection data and an actual measurement reconstruction image obtained by image reconstruction of the actual measurement projection data, to acquire metal area identification data. In the actual measurement projection data, a resulting image has pixel values in the metal area such as of wire or screws, for example, not so different from pixel values of other areas, which makes it difficult to identify the metal area accurately. However, the metal area can be identified with increased accuracy. Based on the metal area identification data, data replacement of the metal area of the actual measurement projection data p 1 is carried out with data obtained from pixels adjacent the metal area, thereby to acquire replacement projection data, which is put to image reconstruction to generate a replacement reconstruction image without the metal area. Since the metal area is identified with increased accuracy, the tissue adjacent the metal area of the tomographic image (replacement reconstruction image) can be restored with increased accuracy.
First claim
Opening claim text (preview).
The invention claimed is: 1. A radiation tomographic image generating apparatus comprising: an actual measurement image reconstruction unit for carrying out image reconstruction of a plurality of actual measurement projection data acquired from different directions with respect to an inspection object including a high radiation absorber, to generate an actual measurement reconstruction image; a high absorber area identifying unit for identifying a high absorber area of the actua…
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Physics · mapped topic
Human Necessities · mapped topic
Human Necessities · mapped topic
Human Necessities · mapped topic
- A61B6/5258Primary
Human Necessities · mapped topic
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Frequently asked questions
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- What does patent US9486178B2 cover?
- This invention identifies a metal area of actual measurement projection data from the actual measurement projection data and an actual measurement reconstruction image obtained by image reconstruction of the actual measurement projection data, to acquire metal area identification data. In the actual measurement projection data, a resulting image has pixel values in the metal area such as of wir…
- Who is the assignee on this patent?
- Sakimoto Tomonori, Nishino Kazuyoshi, Shimadzu Corp
- What technology area does this patent fall under?
- Primary CPC classification A61B6/5258. Mapped technology areas include Human Necessities.
- When was this patent published?
- Publication date Tue Nov 08 2016 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).