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Dose optimization in pediatric cardiac x-ray imaging
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10.1118/1.3488911
/content/aapm/journal/medphys/37/10/10.1118/1.3488911
http://aip.metastore.ingenta.com/content/aapm/journal/medphys/37/10/10.1118/1.3488911

Figures

Image of FIG. 1.
FIG. 1.

Geometry of experimental setup. Ionization chamber No. 1 measured phantom input air kerma rate; chamber No. 2 measured entrance surface dose rate.

Image of FIG. 2.
FIG. 2.

8.5 cm phantom: ESD figures of merit for varying kVp and Cu thickness, with (a) grid in and (b) grid out.

Image of FIG. 3.
FIG. 3.

8.5 cm phantom: Effective dose figures of merit for varying kVp and Cu thickness, with (a) grid in and (b) grid out.

Image of FIG. 4.
FIG. 4.

12 cm phantom: ESD figures of merit for varying kVp and Cu thickness, with (a) grid in and (b) grid out.

Image of FIG. 5.
FIG. 5.

12 cm phantom: Effective dose figures of merit for varying kVp and Cu thickness, with (a) grid in and (b) grid out.

Image of FIG. 6.
FIG. 6.

16 cm phantom: ESD figures of merit for varying kVp and Cu thickness, with (a) grid in and (b) grid out.

Image of FIG. 7.
FIG. 7.

16 cm phantom: Effective dose figures of merit for varying kVp and Cu thickness, with (a) grid in and (b) grid out.

Image of FIG. 8.
FIG. 8.

Figure of merit versus phantom entrance surface dose per frame over relevant dose range.

Image of FIG. 9.
FIG. 9.

Comparison of primary contrast of an iodine and tin detail with varying thickness of copper filtration at 50 kVp, for the 8.5 cm phantom.

Tables

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TABLE I.

Patient table transmission factors

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TABLE II.

Additional experimental data for 8.5 cm phantom (15 frames per second)

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TABLE III.

Additional experimental data for 12 cm phantom (15 frames per second)

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TABLE IV.

Additional experimental data for 16 cm phantom (15 frames per second)

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/content/aapm/journal/medphys/37/10/10.1118/1.3488911
2010-09-16
2014-04-25
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Dose optimization in pediatric cardiac x-ray imaging
http://aip.metastore.ingenta.com/content/aapm/journal/medphys/37/10/10.1118/1.3488911
10.1118/1.3488911
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