Evaluation of Doses and Image Quality in Mammography with Screen-Film, CR, and DR Detectors – Application of the ACR Phantom

Ślusarczyk-Kacprzyk, Wioletta; Skrzyński, Witold; Fabiszewska, Ewa

doi:10.12659/pjr.897304

Cited by 9 publications

(5 citation statements)

References 12 publications

(17 reference statements)

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“…[ 13 ] The previous studies have shown that a fully digital mammography (FDM) system has optimum image quality and is capable of detecting subtle calcification clusters with low dose. [ 14 , 15 ]…”

Section: Introductionmentioning

confidence: 99%

Image Quality and Radiation Dose for Fibrofatty Breast using Target/filter Combinations in Two Digital Mammography Systems

Alkhalifah

Asbeutah

Brindhaban

2020

JCIS

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Objectives: The aim of this study was to determine the optimum combinations of target and filter materials for various X-ray tube voltage settings, as well as their effects on image quality and radiation dose. This was done using different digital mammography (DM) imaging systems with a breast equivalent phantom. Material and Methods: Two DM units with a tungsten (W) target, silver (Ag), and rhodium (Rh) filters and dual molybdenum (Mo) and Rh targets/filters were used. A tissue-equivalent mammography phantom of 6 cm thickness equivalent to a fibrofatty breast was exposed 20 times to different target/filter material combinations (W/Rh, W/Ag, Rh/Rh, Mo/Rh, and Mo/Mo) and various kV settings (28–34 kV). The signal-to-noise ratio (SNR) and contrast-to-noise ratio (CNR) were calculated for each exposure. Results: The W/Ag combination resulted in the lowest entrance skin dose and mean glandular dose (MGD). The MGD for the W/Rh combination was 60% less than that of the W/Ag combination at 34 kV (P < 0.05). There was a direct relationship in the SNR with the Mo/Mo, Mo/Rh, and Rh/Rh combinations and an inverse relationship with the CNR in the 34 kV range. There were statistically significant differences between all five target/filter combinations, and the best SNR and CNR were observed for the W/Rh combination with a reduced radiation dose in the range of 28–30 kV (P < 0.05). Conclusion: For a breast thicknesses of 6 cm with a fibrofatty nature, the W/Rh combination delivers high performance in terms of image quality at a lower dose.

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Section: Introductionmentioning

confidence: 99%

Image Quality and Radiation Dose for Fibrofatty Breast using Target/filter Combinations in Two Digital Mammography Systems

Alkhalifah

Asbeutah

Brindhaban

2020

JCIS

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“…Mammographic image quality and MGD depend on imaging technique and the radiographic system used. The patient radiation dose per mammographic examination is lower compared to the previous published researches (Warren et al, 2016, Pasicz et al, 2016, Fartaria et al, 2016, Ślusarczyk-Kacprzyk et al, 2016, Soliman and Bakkari, 2015, Hauge et al, 2014, Al-Kafi et al, 2009, Dance et al, 2009, Smathers et al, 2007, Kruger and Schueler, 2001) (Fig. 2).…”

Section: Discussionmentioning

confidence: 56%

“…However, to diminish the risk of radiation induced malignant tumors, precise patient dose estimation and optimization are required to bring down the probability of breast cancer to its minimal value (EC, 1996). In the literature, the mean glandular dose (MGD) ranged between 2.0 and 3.7 mGy per procedure (Warren et al, 2016, Pasicz et al, 2016, Fartaria et al, 2016, Ślusarczyk-Kacprzyk et al, 2016, Soliman and Bakkari, 2015, Hauge et al, 2014, Al-Kafi et al, 2009). Although, evaluation of patients' ionizing radiation exposures from radiodiagnostic examinations is recommended for dose optimization and benefit/risk evaluation, few studies have been published regarding patient doses during mammography in Saudi Arabia (Soliman and Bakkari, 2015, Al-Kafi et al, 2009).…”

Section: Introductionmentioning

confidence: 99%

Estimation of cancer risks during mammography procedure in Saudi Arabia

Sulieman

Serhan

Al-Mohammed

et al. 2019

Saudi Journal of Biological Sciences

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The aims of the present work were to quantify radiation doses arises from patients' exposure in mammographic X-ray imaging procedures and to estimate the radiation induced cancer risk. Sixty patients were evaluated using a calibrated digital mammography unit at King Khaled Hospital and Prince Sultan Center, Alkharj, Saudi Arabia. The average patient age (years) was 44.4 ± 10 (26–69). The average and range of exposure parameters were 29.1 ± 1.9 (24.0–33.0) and 78.4 ± 17.5 (28.0–173.0) for X-ray tube potential (kVp) and current multiplied by the exposure time (s) (mAs), respectively. The MGD (mGy) per single projection for craniocaudal (CC), Medio lateral oblique (MLO) and lateromedial (LM) was 1.02 ± 0.2 (0.4–1.8), 1.1 ± 0.3 (0.5–1.8), 1.1 ± 0.3 (0.5–1.9) per procedure, in that order. The average cancer risk per projection is 177 per million procedures. The cancer risk is significant during multiple image acquisition. The study revealed that 80% of the procedures with normal findings. However, precise justification is required especially for young patients.

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“…Regular quality control is required by law in Poland for those methods of medical imaging which involve the use of ionizing radiation [ 17 , 18 ]. Despite a rising number of ultrasound scanners and examinations, systematic quality control of ultrasound equipment is not required.…”

Section: Introductionmentioning

confidence: 99%

Evaluation of Imaging Parameters of Ultrasound Scanners: Baseline for Future Testing

Fabiszewska¹,

Pasicz²,

Grabska³

et al. 2018

Pol J Radiol

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SummaryBackgroundRegular quality control is required in Poland only for those methods of medical imaging which involve the use of ionizing radiation but not for ultrasonography. It is known that the quality of ultrasound images may be affected by the wearing down or malfunctioning of equipment.Material/MethodsAn evaluation of image quality was carried out for 22 ultrasound scanners equipped with 46 transducers. The CIRS Phantom model 040GSE was used. A set of tests was established which could be carried out with the phantom, including: depth of penetration, dead zone, distance measurement accuracy, resolution, uniformity, and visibility of structures.ResultsWhile the dead zone was 0 mm for 89% of transducers, it was 3 mm for the oldest transducer. The distances measured agreed with the actual distances by 1 mm or less in most cases, with the largest difference of 2.6 mm. The resolution in the axial direction for linear transducers did not exceed 1 mm, but it reached even 5 mm for some of the convex and sector transducers, especially at higher depths and in the lateral direction. For 29% of transducers, some distortions of anechoic structures were observed. Artifacts were detected for several transducers.ConclusionsThe results will serve as a baseline for future testing. Several cases of suboptimal image quality were identified along with differences in performance between similar transducers. The results could be used to decide on the applicability of a given scanner or transducer for a particular kind of examination.

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Evaluation of Doses and Image Quality in Mammography with Screen-Film, CR, and DR Detectors – Application of the ACR Phantom

Cited by 9 publications

References 12 publications

Image Quality and Radiation Dose for Fibrofatty Breast using Target/filter Combinations in Two Digital Mammography Systems

Image Quality and Radiation Dose for Fibrofatty Breast using Target/filter Combinations in Two Digital Mammography Systems

Estimation of cancer risks during mammography procedure in Saudi Arabia

Evaluation of Imaging Parameters of Ultrasound Scanners: Baseline for Future Testing

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