Technical note: Water-equivalent thickness of Superflab bolus material at diagnostic x-ray energies.
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| Title: | Technical note: Water-equivalent thickness of Superflab bolus material at diagnostic x-ray energies. |
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| Authors: | Blunt, Kayla F.1 kayfic@gmail.com, Marshall, Emily L.1, Chao Guo1, Zheng Feng Lu1, Reiser, Ingrid1 |
| Source: | Medical Physics. Feb2023, Vol. 50 Issue 2, p1237-1241. 5p. |
| Subjects: | X-ray spectra, X-rays, Data transmission systems, X-ray tubes, Water use |
| Abstract: | Purpose: The purpose of this work was to determine the water-equivalent thickness of Superflab bolus material for narrow and broad field-of-view (FOV) x-ray geometries at diagnostic x-ray energies. Methods: Transmission measurements were performed for incremental thicknesses of Superflab bolus material and water in narrow and broad FOV x-ray geometries. The transmission data was fit to a non-linear model for x-ray transmission - the Archer model. Water-equivalent thickness of Superflab was calculated based upon fitting parameters to transmission curves for 75, 95, and 115 kV x-ray tube voltages. Measured x-ray transmission factors for water and Superflab were used to determine the water equivalence of Superflab. Results: For all x-ray tube voltages and geometries, the water equivalence of Superflab was greater than one, indicating that Superflab is more attenuating than water. This effect was stronger for broad FOV geometries. At 95 kV, 30 cm of Superflab corresponded to 32.0 cm of water in the narrow FOV geometry, and 34.3 cm of water in the broad FOV geometry. The Archer model fitting parameters and Superflab water equivalence are reported for all x-ray beam conditions explored in this work. Conclusions: Superflab bolus material is more attenuating than water at diagnostic x-ray energies. The Archer model and its respective fitting parameters reported in this work may be used to estimate the water-equivalent thickness of Superflab for diagnostic x-ray spectra. [ABSTRACT FROM AUTHOR] |
| Copyright of Medical Physics is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| Database: | Engineering Source |
| FullText | Links: – Type: pdflink Text: Availability: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: Technical note: Water-equivalent thickness of Superflab bolus material at diagnostic x-ray energies. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Blunt%2C+Kayla+F%2E%22">Blunt, Kayla F.</searchLink><relatesTo>1</relatesTo><i> kayfic@gmail.com</i><br /><searchLink fieldCode="AR" term="%22Marshall%2C+Emily+L%2E%22">Marshall, Emily L.</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Chao+Guo%22">Chao Guo</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Zheng+Feng+Lu%22">Zheng Feng Lu</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Reiser%2C+Ingrid%22">Reiser, Ingrid</searchLink><relatesTo>1</relatesTo> – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Medical+Physics%22">Medical Physics</searchLink>. Feb2023, Vol. 50 Issue 2, p1237-1241. 5p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22X-ray+spectra%22">X-ray spectra</searchLink><br /><searchLink fieldCode="DE" term="%22X-rays%22">X-rays</searchLink><br /><searchLink fieldCode="DE" term="%22Data+transmission+systems%22">Data transmission systems</searchLink><br /><searchLink fieldCode="DE" term="%22X-ray+tubes%22">X-ray tubes</searchLink><br /><searchLink fieldCode="DE" term="%22Water+use%22">Water use</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: Purpose: The purpose of this work was to determine the water-equivalent thickness of Superflab bolus material for narrow and broad field-of-view (FOV) x-ray geometries at diagnostic x-ray energies. Methods: Transmission measurements were performed for incremental thicknesses of Superflab bolus material and water in narrow and broad FOV x-ray geometries. The transmission data was fit to a non-linear model for x-ray transmission - the Archer model. Water-equivalent thickness of Superflab was calculated based upon fitting parameters to transmission curves for 75, 95, and 115 kV x-ray tube voltages. Measured x-ray transmission factors for water and Superflab were used to determine the water equivalence of Superflab. Results: For all x-ray tube voltages and geometries, the water equivalence of Superflab was greater than one, indicating that Superflab is more attenuating than water. This effect was stronger for broad FOV geometries. At 95 kV, 30 cm of Superflab corresponded to 32.0 cm of water in the narrow FOV geometry, and 34.3 cm of water in the broad FOV geometry. The Archer model fitting parameters and Superflab water equivalence are reported for all x-ray beam conditions explored in this work. Conclusions: Superflab bolus material is more attenuating than water at diagnostic x-ray energies. The Archer model and its respective fitting parameters reported in this work may be used to estimate the water-equivalent thickness of Superflab for diagnostic x-ray spectra. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Medical Physics is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.) |
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| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.1002/mp.16147 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 5 StartPage: 1237 Subjects: – SubjectFull: X-ray spectra Type: general – SubjectFull: X-rays Type: general – SubjectFull: Data transmission systems Type: general – SubjectFull: X-ray tubes Type: general – SubjectFull: Water use Type: general Titles: – TitleFull: Technical note: Water-equivalent thickness of Superflab bolus material at diagnostic x-ray energies. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Blunt, Kayla F. – PersonEntity: Name: NameFull: Marshall, Emily L. – PersonEntity: Name: NameFull: Chao Guo – PersonEntity: Name: NameFull: Zheng Feng Lu – PersonEntity: Name: NameFull: Reiser, Ingrid IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 02 Text: Feb2023 Type: published Y: 2023 Identifiers: – Type: issn-print Value: 00942405 Numbering: – Type: volume Value: 50 – Type: issue Value: 2 Titles: – TitleFull: Medical Physics Type: main |
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