X-ray CT apparatus
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United States of America Patent
Stats
-
Jun 3, 2014
Issued Date -
N/A
app pub date -
Jun 29, 2009
filing date -
Jul 4, 2008
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
An X-ray CT apparatus is provided that generates a three-dimensional cross-section model from scanogram projection data of an examinee. An operator inputs a site of interest, an assumed displacement amount of the site and a desired image quality index value. A scan planning unit calculates an X-ray attenuation index from the three-dimensional cross-section model, and corrects the calculated X-ray attenuation index on the basis of the input site of interest, assumed displacement amount and image quality index value. The scan planning unit further determines a tube current modulating pattern (irradiation X-ray dose modulating pattern) on the basis of the corrected X-ray attenuation index. When scanning is executed, an X-ray tube is controlled according to the determined irradiation X-ray dose modulating pattern, and controlled so as to obtain an optimum X-ray dose.
First Claim
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International Classification(s)
Cited Art Landscape
Patent Citation Ranking
- 12 Citation Count
- A61B Class
- 40.11 % this patent is cited more than
- 11 Age
Maintenance Fees
| Fee | Large entity fee | small entity fee | micro entity fee | due date |
|---|---|---|---|---|
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Dec 3, 2025 |
