1887
banner image
No data available.
Please log in to see this content.
You have no subscription access to this content.
No metrics data to plot.
The attempt to load metrics for this article has failed.
The attempt to plot a graph for these metrics has failed.
Organ doses for reference pediatric and adolescent patients undergoing computed tomography estimated by Monte Carlo simulation
Rent:
Rent this article for
USD
10.1118/1.3693052
/content/aapm/journal/medphys/39/4/10.1118/1.3693052
http://aip.metastore.ingenta.com/content/aapm/journal/medphys/39/4/10.1118/1.3693052

Figures

Image of FIG. 1.
FIG. 1.

3D frontal views of the series of the pediatric hybrid phantoms representing newborn, 1, 5, 10, and 15-year-old males and females. Only male phantoms are presented from newborn to 10-year-old phantoms because the male and female share the same anatomy except gender-specific organs.

Image of FIG. 2.
FIG. 2.

The comparison of organ doses normalized by CTDIvol for (a) head scan (brain, thyroid, and active marrow), (b) chest scan (lung, kidney, and breast), and (c) abdomen/pelvis scan (colon, liver, and urinary bladder) between the CT-Expo and the NCI calculations.

Image of FIG. 3.
FIG. 3.

Comparison of effective dose normalized to DLP (mSv/mGy cm) for pediatric and adult reference individuals undergoing (a) head, (b) chest, (c) abdomen/pelvis, and (d) CAP scans between Shrimpton et al. and the calculations in this study.

Tables

Generic image for table
TABLE I.

Voxel resolutions, array sizes, and body dimensions (height, weight, and abdominal circumference) for the newborn, 1-year, 5-year, 10-year, and 15-year male and female UF/NCI hybrid phantoms.

Generic image for table
TABLE II.

Tissue weighting factors published in ICRP Publications 60 and 103.

Generic image for table
TABLE III.

CTDIvo l− and 100 mAs-normalized organ absorbed doses (mGy/100 mAs mGy) and effective doses (mSv/100 mAs mGy) based on tissue weighting factors from either ICRP 60 (ED60) or ICRP 103 (E103) for the newborn, 1-year, 5-year, 10-year, and 15-year male and female reference phantoms for head examinations at tube potentials of 80, 100, and 120 kVp.

Generic image for table
TABLE IV.

CTDIvo l− and 100 mAs-normalized organ absorbed doses (mGy/100 mAs mGy) and effective doses (mSv/100 mAs mGy) based on tissue weighting factors from either ICRP 60 (ED60) or ICRP 103 (E103) for the newborn, 1-year, 5-year, 10-year, and 15-year male and female reference phantoms for chest examinations at tube potentials of 80, 100, and 120 kVp.

Generic image for table
TABLE V.

CTDIvol− and 100 mAs-normalized organ absorbed doses (mGy/100 mAs mGy) and effective doses (mSv/100 mAs mGy) based on tissue weighting factors from either ICRP 60 (ED60) or ICRP 103 (E103) for the newborn, 1-year, 5-year, 10-year, and 15-year male and female reference phantoms for abdomen-pelvis examinations at tube potentials of 80, 100, and 120 kVp.

Generic image for table
TABLE VI.

CTDIvol− and 100 mAs-normalized organ absorbed doses (mGy/100 mAs mGy) and effective doses (mSv/100 mAs mGy) based on tissue weighting factors from either ICRP 60 (ED60) or ICRP 103 (E103) for the newborn, 1-year, 5-year, 10-year, and 15-year male and female reference phantoms for chest-abdomen-pelvis (CAP) examinations at tube potentials of 80, 100, and 120 kVp.

Generic image for table
TABLE VII.

Organ absorbed doses (mGy/100 mAs) and effective doses (mSv/100 mAs) for newborn, 1-year, 5-year, 10-year, and 15-year male and female reference phantoms for head CT examinations using the Siemens SOMATOM Sensation 16 scanner model at tube potentials of 80, 100, and 120 kVp. The significant digits of table entries reflect the precision of the Monte Carlo calculations. Organ doses less than 0.1 mGy/100 mAs are not tabulated (indicated by a hyphen).

Generic image for table
TABLE VIII.

Organ absorbed doses (mGy/100 mAs) and effective doses (mSv/100 mAs) for newborn, 1-year, 5-year, 10-year, and 15-year male and female reference phantoms for chest CT examinations using the Siemens SOMATOM Sensation 16 scanner model at tube potentials of 80, 100, and 120 kVp. The significant digits of table entries reflect the precision of the Monte Carlo calculations. Organ doses less than 0.1 mGy/100 mAs are not tabulated (indicated by a hyphen).

Generic image for table
TABLE IX.

Organ absorbed doses (mGy/100 mAs) and effective doses (mSv/100 mAs) for newborn, 1-year, 5-year, 10-year, and 15-year male and female reference phantoms for abdomen-pelvis CT examinations using the Siemens SOMATOM Sensation 16 scanner model at tube potentials of 80, 100, and 120 kVp. The significant digits of table entries reflect the precision of the Monte Carlo calculations. Organ doses less than 0.1 mGy/100 mAs are not tabulated (indicated by a hyphen).

Generic image for table
TABLE X.

Organ absorbed doses (mGy/100 mAs) and effective doses (mSv/100 mAs) for newborn, 1-year, 5-year, 10-year, and 15-year male and female reference phantoms for chest-abdomen-pelvis (CAP) CT examinations using the Siemens SOMATOM Sensation 16 scanner model at tube potentials of 80, 100, and 120 kVp. The significant digits of table entries reflect the precision of the Monte Carlo calculations. Organ doses less than 0.1 mGy/100 mAs are not tabulated (indicated by a hyphen).

Generic image for table
TABLE XI.

Comparison of major organ doses (mGy/100 mAs mGy) for the organs completely included in the abdomen/pelvis scan as derived by empirical correlation with patient abdominal circumference (Turner et al.) and as calculated from the organ dose matrix of the present study.

Generic image for table
TABLE XII.

Comparison of effective doses normalized to dose length product (DLP) (mSv/mGy cm) as given by Shrimpton et al. and as calculated using the dose matrix of the present study under either ICRP 60 or ICRP 103 tissue weighting factors.

Loading

Article metrics loading...

/content/aapm/journal/medphys/39/4/10.1118/1.3693052
2012-03-28
2014-04-19
Loading

Full text loading...

This is a required field
Please enter a valid email address
752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Organ doses for reference pediatric and adolescent patients undergoing computed tomography estimated by Monte Carlo simulation
http://aip.metastore.ingenta.com/content/aapm/journal/medphys/39/4/10.1118/1.3693052
10.1118/1.3693052
SEARCH_EXPAND_ITEM