Limits...
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

DICOM tag information by Centricity workstation. Information from each image DICOM tag indicated the image area dose product by tag number 0018.115E.
© Copyright Policy - open-access
Related In: Results  -  Collection

License
getmorefigures.php?uid=PMC4835671&req=5

fig25502: DICOM tag information by Centricity workstation. Information from each image DICOM tag indicated the image area dose product by tag number 0018.115E.

Mentions: Prior to applying AIPM, digital imaging and communications in medicine (DICOM) tags for the dose area product (DAP) of each image were collected by investigating the DICOM tag data of each partial image, and additional information was identified including X-ray field size, tube voltage, the use of AEC mode, and distance between X-ray tube and detector (7). DICOM tag data of each image was found on a Centricity CA1000 workstation (GE Medical Systems, Milwaukee, US). Tag 0018,115E revealed the information for DAP as well as tube voltage, tube current, radiation time, and distance from the source to the detector (Figure 1) (8).


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)

DICOM tag information by Centricity workstation. Information from each image DICOM tag indicated the image area dose product by tag number 0018.115E.
© Copyright Policy - open-access
Related In: Results  -  Collection

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

fig25502: DICOM tag information by Centricity workstation. Information from each image DICOM tag indicated the image area dose product by tag number 0018.115E.
Mentions: Prior to applying AIPM, digital imaging and communications in medicine (DICOM) tags for the dose area product (DAP) of each image were collected by investigating the DICOM tag data of each partial image, and additional information was identified including X-ray field size, tube voltage, the use of AEC mode, and distance between X-ray tube and detector (7). DICOM tag data of each image was found on a Centricity CA1000 workstation (GE Medical Systems, Milwaukee, US). Tag 0018,115E revealed the information for DAP as well as tube voltage, tube current, radiation time, and distance from the source to the detector (Figure 1) (8).

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