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Application of a computed tomography based cystic fibrosis scoring system to chest tomosynthesis

Artikel i övriga tidskrifter
Författare Christina Söderman
Åse (Allansdotter) Johnsson
Jenny Vikgren
Hans Rystedt
Jonas Ivarsson
Rauni Rossi-Norrlund
Lena Nyberg Andersson
Magnus Båth
Publicerad i Proceedings of SPIE - The International Society for Optical Engineering
Volym 8673
Sidor 86731H
ISSN 0277-786X
Publiceringsår 2013
Publicerad vid Institutionen för kliniska vetenskaper, Avdelningen för radiofysik
Institutionen för pedagogik, kommunikation och lärande
Institutionen för kliniska vetenskaper, Avdelningen för radiologi
Sidor 86731H
Språk en
Länkar dx.doi.org/10.1117/12.2006761
Ämnesord Chest tomosynthesis , Cystic fibrosis , Observer performance , Technology assessment , Technology impact
Ämneskategorier Radiofysik, Radiologi, Utbildningsvetenskap

Sammanfattning

In the monitoring of progression of lung disease in patients with cystic fibrosis (CF), recurrent computed tomography (CT) examinations are often used. The relatively new imaging technique chest tomosynthesis (CTS) may be an interesting alternative in the follow-up of these patients due to its visualization of the chest in slices at radiation doses and costs significantly lower than is the case with CT. A first step towards introducing CTS imaging in the diagnostics of CF patients is to establish a scoring system appropriate for evaluating the severity of CF pulmonary disease based on findings in CTS images. Previously, several such CF scoring systems based on CT imaging have been published. The purpose of the present study was to develop a CF scoring system for CTS, by starting from an existing scoring system dedicated for CT images and making modifications regarded necessary to make it appropriate for use with CTS images. In order to determine any necessary changes, three thoracic radiologists independently used a scoring system dedicated for CT on both CT and CTS images from CF patients. The results of the scoring were jointly evaluated by all the observers, which lead to suggestions for changes to the scoring system. Suggested modifications include excluding the scoring of air trapping and doing the scoring of the findings in quadrants of the image instead of in each lung lobe. © 2013 SPIE.

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