Zobrazeno 1 - 10
of 12
pro vyhledávání: '"Åse Allansdotter Johnsson"'
Autor:
Åse Allansdotter Johnsson, Susanne Kheddache, Carin Meltzer, Helga Asgeirsdottir, M. Gilljam, Magnus Båth
Publikováno v:
Radiation Protection Dosimetry
The aims of this study were to assess the visibility of pulmonary structures in patients with cystic fibrosis (CF) in digital tomosynthesis (DTS) using computed tomography (CT) as reference and to investigate the dependency on anatomical location and
Publikováno v:
Radiation Protection Dosimetry
The aim of the study was to investigate the potential role of chest tomosynthesis (CTS) at a tertiary referral centre by exploring to what extent CTS could substitute chest radiography (CXR) and computed tomography (CT). The study comprised 1433 CXR,
Autor:
Christina, Söderman, Åse Allansdotter, Johnsson, Jenny, Vikgren, Rauni Rossi, Norrlund, David, Molnar, Maral, Mirzai, Angelica, Svalkvist, Lars Gunnar, Månsson, Magnus, Båth
Publikováno v:
Academic radiology. 26(4)
Chest tomosynthesis has been suggested as a suitable alternative to CT for follow-up of pulmonary nodules. The aim of the present study was to investigate the possibility of detecting pulmonary nodule growth using chest tomosynthesis.Simulated nodule
Autor:
Angelica Svalkvist, Christina Söderman, David Molnar, Lars Gunnar Månsson, Åse Allansdotter Johnsson, Sara Asplund, Rauni Rossi Norrlund, Magnus Båth, Jenny Vikgren
Publikováno v:
Medical Physics. 42:1200-1212
Purpose: To investigate the potential benefit of increasing the dose per projection image in chest tomosynthesis, performed at the current standard dose level, by reducing the angular range covered or the projection image density and to evaluate the
Autor:
Gustav Lymer, Sara Asplund, Åse Allansdotter Johnsson, Hans Rystedt, Jonas Ivarsson, Magnus Båth
Publikováno v:
Discourse Studies. 16:185-215
The present study examines the work of a group of medical scientists as they identify interpretative ‘pitfalls’ – recurrent sources of error – in the use of a new radiographic technique, formulate suggestions on how these pitfalls can be avoi
Publikováno v:
Social Studies of Science. 41:867-891
This study contributes to social studies of imaging and visualization practices within scientific and medical settings. The focus is on practices in radiology, which are bound up with visual records known as radiographs. The study addresses work foll
Autor:
Jenny Vikgren, Åsa Wiksell, Jonas Ivarsson, Susanne Kheddache, Magnus Båth, Valeria A. Fisichella, Angelica Svalkvist, Marianne Boijsen, Åse Allansdotter Johnsson, Hans Rystedt, Lars Gunnar Månsson, Agneta Flinck, Sara Asplund
Publikováno v:
Acta Radiologica. 52:503-512
Background In chest tomosynthesis, low-dose projections collected over a limited angular range are used for reconstruction of an arbitrary number of section images of the chest, resulting in a moderately increased radiation dose compared to chest rad
Autor:
Susanne Kheddache, Agneta Flinck, Angelica Svalkvist, Marianne Boijsen, Åse Allansdotter Johnsson, Sara Zachrisson, Magnus Båth, Lars Gunnar Månsson, Jenny Vikgren
Publikováno v:
Acta Radiologica. 50:884-891
Background: The new technique chest tomosynthesis refers to the principle of collecting low-dose projections of the chest at different angles and using these projections to reconstruct section images of the chest at a radiation dose comparable to tha
Autor:
Magnus Båth, Rauni Rossi Norrlund, Christina Söderman, David Molnar, Jenny Vikgren, Angelica Svalkvist, Lars Gunnar Månsson, Åse Allansdotter Johnsson
Publikováno v:
Academic radiology. 22(4)
Rationale and ObjectivesTo investigate the accuracy and precision of pulmonary nodule size measurements on chest tomosynthesis images.Materials and MethodsArtificial ellipsoid-shaped nodules with known sizes were inserted in clinical chest tomosynthe
Publikováno v:
Seminars in respiratory and critical care medicine. 35(1)
The recent implementation of chest tomosynthesis is built on the availability of large, dose-efficient, high-resolution flat panel detectors, which enable the acquisition of the necessary number of projection radiographs to allow reconstruction of se