Advanced

Can horizontally oriented breast tomosynthesis image volumes or the use of a systematic search strategy improve interpretation? An eye tracking and free response human observer study

Lång, Kristina LU ; Zackrisson, Sophia LU ; Holmqvist, Kenneth LU ; Nyström, Marcus LU ; Andersson, Ingvar LU ; Förnvik, Daniel LU ; Tingberg, Anders LU and Timberg, Pontus LU (2011) Medical Imaging 2011: Image Perception, Observer Performance, and Technology Assessment In Proc. SPIE 7966(796606).
Abstract
Our aim was to evaluate if there is a benefit in diagnostic accuracy and efficiency of viewing breast tomosynthesis (BT) image volumes presented horizontally oriented, but also to evaluate the use of a systematic search strategy where the breast is divided, and analyzed consecutively, into two sections. These image presentations were compared to regular vertical image presentation. All methods were investigated using viewing procedures consisting of free scroll volume browsing, and a combination of initial cine loops at three different frame rates (9, 14, 25 fps) terminated upon request followed by free scroll volume browsing if needed. Fifty-five normal BT image volumes in MLO view were collected. In these, simulated lesions (20 masses... (More)
Our aim was to evaluate if there is a benefit in diagnostic accuracy and efficiency of viewing breast tomosynthesis (BT) image volumes presented horizontally oriented, but also to evaluate the use of a systematic search strategy where the breast is divided, and analyzed consecutively, into two sections. These image presentations were compared to regular vertical image presentation. All methods were investigated using viewing procedures consisting of free scroll volume browsing, and a combination of initial cine loops at three different frame rates (9, 14, 25 fps) terminated upon request followed by free scroll volume browsing if needed. Fifty-five normal BT image volumes in MLO view were collected. In these, simulated lesions (20 masses and 20 clusters of microcalcifications) were randomly inserted, creating four unique image sets for each procedure. Four readers interpreted the cases in a random order. Their task was to locate the lesions, mark and assign a five level confidence scale. The diagnostic accuracy was analyzed using Jackknife Free Receiver Operating Characteristics (JAFROC). Time efficiency and visual search behavior were also investigated using eye tracking. Results indicate there was no statistically significant difference in JAFROC FOM between the different image presentations, although visual search was more time efficient when viewing horizontally oriented image volumes in medium cine loops. (Less)
Please use this url to cite or link to this publication:
author
organization
publishing date
type
Chapter in Book/Report/Conference proceeding
publication status
published
subject
in
Proc. SPIE
volume
7966
issue
796606
publisher
SPIE
conference name
Medical Imaging 2011: Image Perception, Observer Performance, and Technology Assessment
external identifiers
  • WOS:000296320800005
  • Scopus:79955850421
DOI
10.1117/12.878081
language
English
LU publication?
yes
id
dfbf2e46-4430-4e7e-b5c3-43a47c0dcad9 (old id 1897850)
date added to LUP
2011-05-02 10:37:40
date last changed
2016-10-13 04:50:53
@misc{dfbf2e46-4430-4e7e-b5c3-43a47c0dcad9,
  abstract     = {Our aim was to evaluate if there is a benefit in diagnostic accuracy and efficiency of viewing breast tomosynthesis (BT) image volumes presented horizontally oriented, but also to evaluate the use of a systematic search strategy where the breast is divided, and analyzed consecutively, into two sections. These image presentations were compared to regular vertical image presentation. All methods were investigated using viewing procedures consisting of free scroll volume browsing, and a combination of initial cine loops at three different frame rates (9, 14, 25 fps) terminated upon request followed by free scroll volume browsing if needed. Fifty-five normal BT image volumes in MLO view were collected. In these, simulated lesions (20 masses and 20 clusters of microcalcifications) were randomly inserted, creating four unique image sets for each procedure. Four readers interpreted the cases in a random order. Their task was to locate the lesions, mark and assign a five level confidence scale. The diagnostic accuracy was analyzed using Jackknife Free Receiver Operating Characteristics (JAFROC). Time efficiency and visual search behavior were also investigated using eye tracking. Results indicate there was no statistically significant difference in JAFROC FOM between the different image presentations, although visual search was more time efficient when viewing horizontally oriented image volumes in medium cine loops.},
  author       = {Lång, Kristina and Zackrisson, Sophia and Holmqvist, Kenneth and Nyström, Marcus and Andersson, Ingvar and Förnvik, Daniel and Tingberg, Anders and Timberg, Pontus},
  language     = {eng},
  number       = {796606},
  publisher    = {ARRAY(0x85fcc90)},
  series       = {Proc. SPIE},
  title        = {Can horizontally oriented breast tomosynthesis image volumes or the use of a systematic search strategy improve interpretation? An eye tracking and free response human observer study},
  url          = {http://dx.doi.org/10.1117/12.878081},
  volume       = {7966},
  year         = {2011},
}