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Nodule detection in...
Nodule detection in digital chest radiography: effect of nodule location.
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- Håkansson, Markus (författare)
- Gothenburg University,Göteborgs universitet,Institutionen för särskilda specialiteter, Avdelningen för radiofysik,Institute of Selected Clinical Sciences, Department of Radiation Physics
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- Båth, Magnus, 1974 (författare)
- Gothenburg University,Göteborgs universitet,Institutionen för särskilda specialiteter, Avdelningen för radiofysik,Institute of Selected Clinical Sciences, Department of Radiation Physics
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- Börjesson, Sara (författare)
- Gothenburg University,Göteborgs universitet,Institutionen för särskilda specialiteter, Avdelningen för radiofysik,Institute of Selected Clinical Sciences, Department of Radiation Physics
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- Kheddache, Susanne, 1949 (författare)
- Gothenburg University,Göteborgs universitet,Institutionen för särskilda specialiteter, Avdelningen för radiologi,Institute of Selected Clinical Sciences, Department of Radiology
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- Flinck, Agneta, 1953 (författare)
- Gothenburg University,Göteborgs universitet,Institutionen för särskilda specialiteter, Avdelningen för radiologi,Institute of Selected Clinical Sciences, Department of Radiology
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- Ullman, Gustaf, 1977- (författare)
- Linköpings universitet,Hälsouniversitetet,Medicinsk radiofysik
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- Månsson, Lars Gunnar, 1951 (författare)
- Gothenburg University,Göteborgs universitet,Institutionen för särskilda specialiteter, Avdelningen för radiofysik,Institute of Selected Clinical Sciences, Department of Radiation Physics
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(creator_code:org_t)
- 2005-05-17
- 2005
- Engelska.
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Ingår i: Radiation protection dosimetry. - : Oxford University Press (OUP). - 0144-8420 .- 1742-3406. ; 114:1-3, s. 92-6
- Relaterad länk:
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https://gup.ub.gu.se...
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https://doi.org/10.1...
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https://urn.kb.se/re...
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Abstract
Ämnesord
Stäng
- Most detection studies in chest radiography treat the entire chest image as a single background or divided into the two regions parenchyma and mediastinum. However, the different parts of the lung show great variations in attenuation and structure, leading to different amounts of quantum noise and scattered radiation as well as different complexity. Detailed data on the difference in detectability in the different regions are of importance. The purpose of this study was to quantify the difference in detectability between different regions of a chest image. The chest X ray was divided into six different regions, where each region was considered to be uniform in terms of detectability. Thirty clinical chest images were collected and divided into the different regions. Simulated designer nodules with a full-width-at-fifth-maximum of 10 mm but with varying contrast were added to the images. An equal number of images lacking pathology were included and a receiver operating characteristic (ROC) study was conducted with five observers. Results show that the image contrast needed to obtain a constant value of A(z) (area under an ROC curve) differs by more than a factor of four between different regions.
Ämnesord
- MEDICIN OCH HÄLSOVETENSKAP -- Klinisk medicin -- Radiologi och bildbehandling (hsv//swe)
- MEDICAL AND HEALTH SCIENCES -- Clinical Medicine -- Radiology, Nuclear Medicine and Medical Imaging (hsv//eng)
Nyckelord
- Artifacts
- Humans
- Image Processing
- Computer-Assisted
- Lung
- pathology
- radiography
- Lung Neoplasms
- diagnosis
- radiography
- Models
- Anatomic
- Monte Carlo Method
- Observer Variation
- ROC Curve
- Radiographic Image Enhancement
- methods
- Radiographic Image Interpretation
- Computer-Assisted
- methods
- Radiography
- methods
- Radiography
- Thoracic
- methods
- Scattering
- Radiation
- Software
- X-Rays
- MEDICINE
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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Till lärosätets databas
- Av författaren/redakt...
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Håkansson, Marku ...
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Båth, Magnus, 19 ...
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Börjesson, Sara
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Kheddache, Susan ...
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Flinck, Agneta, ...
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Ullman, Gustaf, ...
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Månsson, Lars Gu ...
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- Om ämnet
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- MEDICIN OCH HÄLSOVETENSKAP
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MEDICIN OCH HÄLS ...
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och Klinisk medicin
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och Radiologi och bi ...
- Artiklar i publikationen
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Radiation protec ...
- Av lärosätet
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Göteborgs universitet
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Linköpings universitet