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Evaluation of the Patient Effective Dose in Whole Spine Scanography Based on the Automatic Image Pasting Method for Digital Radiography.

Kim JS, Yoon SW, Seo DN, Nam SR, Kim JM - Iran J Radiol (2016)

Bottom Line: The anterior-posterior (AP) and lateral (LAT) projection EDs were evaluated based on the Monte Carlo simulation.The mean ED was 0.6276 mSv (AP) and 0.6716 mSv (LAT).The relationship between dose-area-product (DAP) and ED revealed a proportional correlation (AP, R(2) = 0.943; LAT, R(2) = 0.773).

View Article: PubMed Central - PubMed

Affiliation: Department of Radiologic Science, College of Health Science, Korea University, Seoul, South Korea.

ABSTRACT

Background: Whole spine scanography (WSS) is a radiologic examination that requires whole body X-ray exposure. Consequently, the amount of patient radiation exposure is higher than the radiation dose following routine X-ray examination.

Objectives: Several studies have evaluated the patient effective dose (ED) following single exposure film-screen WSS. The objective of this study was to evaluate patient ED during WSS, based on the automatic image pasting method for multiple exposure digital radiography (APMDR). Further, the calculated EDs were compared with the results of previous studies involving single exposure film-screen WSS.

Patients and methods: We evaluated the ED of 50 consecutive patients (M:F = 28:22) who underwent WSS using APMDR. The anterior-posterior (AP) and lateral (LAT) projection EDs were evaluated based on the Monte Carlo simulation.

Results: Using APMDR, the mean number of exposures was 6.1 for AP and 6.5 for LAT projections. LAT projections required more exposures (6.55%) than AP projections. The mean ED was 0.6276 mSv (AP) and 0.6716 mSv (LAT). The mean ED for LAT projections was 0.6061 mSv in automatic exposure control (AEC) and 0.7694 mSv in manual mode. The relationship between dose-area-product (DAP) and ED revealed a proportional correlation (AP, R(2) = 0.943; LAT, R(2) = 0.773). Compared to prior research involving single exposure screen-film WSS, the patient ED following WSS using APMDR was lower on AP than on LAT projections.

Conclusion: Despite multiple exposures, ED control is more effective if WSS is performed using APMDR in the AEC mode.

No MeSH data available.


Related in: MedlinePlus

Automated acquisition and automated pasting of DR images
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Related In: Results  -  Collection

License
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fig25503: Automated acquisition and automated pasting of DR images

Mentions: The AIPM established the top-to-bottom height before scanning, acquired images by moving the detector and X-ray tube, and then pasted together the acquired images. The device used in this study produced a 90 cm-long whole spine scanography within 12 seconds by acquiring and pasting together three partial images (Figure 2).


Evaluation of the Patient Effective Dose in Whole Spine Scanography Based on the Automatic Image Pasting Method for Digital Radiography.

Kim JS, Yoon SW, Seo DN, Nam SR, Kim JM - Iran J Radiol (2016)

Automated acquisition and automated pasting of DR images
© Copyright Policy - open-access
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4835671&req=5

fig25503: Automated acquisition and automated pasting of DR images
Mentions: The AIPM established the top-to-bottom height before scanning, acquired images by moving the detector and X-ray tube, and then pasted together the acquired images. The device used in this study produced a 90 cm-long whole spine scanography within 12 seconds by acquiring and pasting together three partial images (Figure 2).

Bottom Line: The anterior-posterior (AP) and lateral (LAT) projection EDs were evaluated based on the Monte Carlo simulation.The mean ED was 0.6276 mSv (AP) and 0.6716 mSv (LAT).The relationship between dose-area-product (DAP) and ED revealed a proportional correlation (AP, R(2) = 0.943; LAT, R(2) = 0.773).

View Article: PubMed Central - PubMed

Affiliation: Department of Radiologic Science, College of Health Science, Korea University, Seoul, South Korea.

ABSTRACT

Background: Whole spine scanography (WSS) is a radiologic examination that requires whole body X-ray exposure. Consequently, the amount of patient radiation exposure is higher than the radiation dose following routine X-ray examination.

Objectives: Several studies have evaluated the patient effective dose (ED) following single exposure film-screen WSS. The objective of this study was to evaluate patient ED during WSS, based on the automatic image pasting method for multiple exposure digital radiography (APMDR). Further, the calculated EDs were compared with the results of previous studies involving single exposure film-screen WSS.

Patients and methods: We evaluated the ED of 50 consecutive patients (M:F = 28:22) who underwent WSS using APMDR. The anterior-posterior (AP) and lateral (LAT) projection EDs were evaluated based on the Monte Carlo simulation.

Results: Using APMDR, the mean number of exposures was 6.1 for AP and 6.5 for LAT projections. LAT projections required more exposures (6.55%) than AP projections. The mean ED was 0.6276 mSv (AP) and 0.6716 mSv (LAT). The mean ED for LAT projections was 0.6061 mSv in automatic exposure control (AEC) and 0.7694 mSv in manual mode. The relationship between dose-area-product (DAP) and ED revealed a proportional correlation (AP, R(2) = 0.943; LAT, R(2) = 0.773). Compared to prior research involving single exposure screen-film WSS, the patient ED following WSS using APMDR was lower on AP than on LAT projections.

Conclusion: Despite multiple exposures, ED control is more effective if WSS is performed using APMDR in the AEC mode.

No MeSH data available.


Related in: MedlinePlus