The Effect of Dose Reduction on Overall Image Quality in Clinical Chest Tomosynthesis

↓ Direkt till sidans innehåll
↓ Direkt till sidans sekundära innehåll (sidomenyn)

Search: onr:"swepub:oai:gup.ub.gu.se/297461" > The Effect of Dose ...

1 of 1
Previous record
Next record
To hitlist

The Effect of Dose Reduction on Overall Image Quality in Clinical Chest Tomosynthesis

Mirzai, Maral (author): Gothenburg University,Göteborgs universitet,Institutionen för kliniska vetenskaper, Avdelningen för medicinsk strålningsvetenskap,Institute of Clinical Sciences, Department of Medical Radiation Sciences

Meltzer, Carin (author): Gothenburg University,Göteborgs universitet,Institutionen för kliniska vetenskaper, Avdelningen för radiologi,Institute of Clinical Sciences, Department of Radiology

Vikgren, Jenny, 1957 (author): Gothenburg University,Göteborgs universitet,Institutionen för kliniska vetenskaper, Avdelningen för radiologi,Institute of Clinical Sciences, Department of Radiology

Rossi-Norrlund, Rauni, 1962 (author): Gothenburg University,Göteborgs universitet,Institutionen för kliniska vetenskaper, Avdelningen för radiologi,Institute of Clinical Sciences, Department of Radiology

Gottfridsson, B. (author)

Johnsson, Åse (Allansdotter), 1966 (author): Gothenburg University,Göteborgs universitet,Institutionen för kliniska vetenskaper, Avdelningen för radiologi,Institute of Clinical Sciences, Department of Radiology

Båth, Magnus, 1974 (author): Gothenburg University,Göteborgs universitet,Institutionen för kliniska vetenskaper, Avdelningen för medicinsk strålningsvetenskap,Institute of Clinical Sciences, Department of Medical Radiation Sciences

Svalkvist, Angelica (author): Gothenburg University,Göteborgs universitet,Institutionen för kliniska vetenskaper, Avdelningen för medicinsk strålningsvetenskap,Institute of Clinical Sciences, Department of Medical Radiation Sciences

show less...

(creator_code:org_t)

Elsevier BV, 2021
2021
English.
In: Academic Radiology. - : Elsevier BV. - 1076-6332. ; 28:10, s. 289-296

Related links:: http://www.academicr...; show more...; https://gup.ub.gu.se...; https://doi.org/10.1...; show less...

Journal article (peer-reviewed)

Abstract Subject headings

Rationale and Objectives: To evaluate the effect of reduction in effective dose on the reproduction of anatomical structures in chest tomosynthesis (CTS). Materials and Methods: Twenty-four CTS examinations acquired at exposure settings resulting in an effective dose of 0.12 mSv for an average sized patient were included in the study. The examinations underwent simulated dose reduction to dose levels corresponding to 32%, 50%, and 70% of the original dose using a previously described and validated method. The image quality was evaluated by five thoracic radiologists who rated the fulfillment of specified image quality criteria in a visual grading study. The ratings for each image quality criterion in the dose-reduced images were compared to the corresponding ratings for the full-dose examinations using visual grading characteristics (VGC) analysis. The area under the resulting VGC curve (AUCVGC) provides a measure of the difference between the ratings, where an AUCVGC of 0.5 indicates no difference. Results: The dose reductions resulted in inferior reproduction of structures compared to the original dose level (AUCVGC <0.5). Structures in the central region of the lung obtained the lowest AUCVGC for each dose level whereas the reproduction of structures in the parenchyma was least affected by the dose reduction. Conclusion: Although previous studies have shown that dose reduction in CTS is possible without affecting the performance of certain clinical tasks, the reproduction of normal anatomical structures is significantly degraded even at small reductions. It is therefore important to consider the clinical purpose of the CTS examinations before deciding on a permanent dose reduction. © 2020 The Association of University Radiologists

Subject headings

MEDICIN OCH HÄLSOVETENSKAP -- Klinisk medicin -- Radiologi och bildbehandling (hsv//swe)
MEDICAL AND HEALTH SCIENCES -- Clinical Medicine -- Radiology, Nuclear Medicine and Medical Imaging (hsv//eng)

Keyword

Computer-assisted
Diagnostic imaging
Image processing
Radiation exposure
Thoracic radiography
adult
article
clinical article
female
human
image quality
low drug dose
lung
male
parenchyma
radiologist
reproduction
simulation
thorax radiography

Publication and Content Type

ref (subject category)
art (subject category)

Find in a library

Academic Radiology (Search for host publication in LIBRIS)

To the university's database

1 of 1
Previous record
Next record
To hitlist

Find more in SwePub

By the author/editor: Mirzai, Maral; Meltzer, Carin; Vikgren, Jenny, ...; Rossi-Norrlund, ...; Gottfridsson, B.; Johnsson, Åse (A ...; show more...; Båth, Magnus, 19 ...; Svalkvist, Angel ...; show less...

About the subject

MEDICAL AND HEALTH SCIENCES: MEDICAL AND HEAL ...; and Clinical Medicin ...; and Radiology Nuclea ...

Articles in the publication: Academic Radiolo ...

By the university: University of Gothenburg

Search outside SwePub

Extend your search to:: Google; Google Book Search; Google Scholar

Kungliga biblioteket hanterar dina personuppgifter i enlighet med EU:s dataskyddsförordning (2018), GDPR. Läs mer om hur det funkar här.
Så här hanterar KB dina uppgifter vid användning av denna tjänst.

LIBRIS.kb.se