Evaluation of the patient effective dose in whole spine scanography based on the automatic image pasting method for digital radiography

Jung Su Kim, Sang Wook Yoon, Deok Nam Seo, So Ra Nam, Jung Min Kim

Research output: Contribution to journalArticle

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, R2 = 0.943; LAT, R2 = 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.

Original languageEnglish
Article numbere22514
JournalIranian Journal of Radiology
Volume13
Issue number1
DOIs
Publication statusPublished - 2016 Dec 23

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Radiographic Image Enhancement
Spine
Motion Pictures
X-Rays
Radiation

Keywords

  • Health physics
  • Radiation dosage
  • X-rays

ASJC Scopus subject areas

  • Radiology Nuclear Medicine and imaging

Cite this

Evaluation of the patient effective dose in whole spine scanography based on the automatic image pasting method for digital radiography. / Kim, Jung Su; Yoon, Sang Wook; Seo, Deok Nam; Nam, So Ra; Kim, Jung Min.

In: Iranian Journal of Radiology, Vol. 13, No. 1, e22514, 23.12.2016.

Research output: Contribution to journalArticle

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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, R2 = 0.943; LAT, R2 = 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.",
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