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Validating “Image box”-a new approach to multicentre radiology reviews using a web-based image review system: study protocol

Validating “Image box”-a new approach to multicentre radiology reviews using a web-based image review system: study protocol
Validating “Image box”-a new approach to multicentre radiology reviews using a web-based image review system: study protocol
Objectives
To validate the use of “Imagebox”- a web-based image review system for large scale multicentre trials.

Patients and Methods
As part of the multicentre trial ‘Prospective study of Outcomes in Sporadic versus Hereditary breast cancer (POSH) study’ mammograms were collected and digitised. Software was created allowing digitised mammograms to be viewed from any location with internet access. Two validation studies were performed. Firstly phantom studies using line-pairs (1–20 lpmm-1) to assess spatial resolution and the CDMAM 3.4 phantom were used to assess the visibility of gold discs for contrast detail .Secondly a comparison was made between the scoring of 77 patients’ original diagnostic analogue mammograms from 29 hospitals and the corresponding web images. Films and web images were scored by one experienced breast radiologist according to the BIRADS classification. At least 8 weeks elapsed between scoring images from the same patient.

Results
The original analogue spatial resolution was 20 lpmm-1 and web resolution of the same image reduced at 8.9 lpmm-1. Contrast detail assessment demonstrated analogue and web images with near concordance and the image quality factor, IQFinv for the web was reduced but within the 95% confidence interval of the original mammograms. BIRADS final assessment showed good agreement between the analogue and the identical web images (Kappa 0.82).

Conclusion
The overall reduction in spatial resolution did not adversely affect the quality of the diagnostic image on “Imagebox”. This may be due to its functionality, specifically the high magnification zoom which enhances diagnostic interpretation. Imagebox is a promising solution to address the logistical challenges for large breast imaging reviews and has further potential for education and self assessment.
1925-4008
24-32
Moyle, Penelope Laura
90a11370-5fdb-4828-a09c-b764e448ae2e
Katako, Masako
52db49e1-2fdc-4ae3-b6d9-cfd5fe438dc6
Wheeler, Kevin
0ac65193-3c6f-44f0-b1e0-ad503e0c241d
Gerty, Susan
b2013815-27c9-4a7d-ad42-071f60a8000f
Morrish, Oliver
d9f27060-a357-4ab6-9909-37d4236bdfed
Wallis, Matthew G.
89b55046-29ce-4131-8c85-0ab5ed0a722f
Eccles, Diana M.
5b59bc73-11c9-4cf0-a9d5-7a8e523eee23
Warren, Ruth
2ba49c5b-5a61-447f-9fbb-820e92c60bff
Moyle, Penelope Laura
90a11370-5fdb-4828-a09c-b764e448ae2e
Katako, Masako
52db49e1-2fdc-4ae3-b6d9-cfd5fe438dc6
Wheeler, Kevin
0ac65193-3c6f-44f0-b1e0-ad503e0c241d
Gerty, Susan
b2013815-27c9-4a7d-ad42-071f60a8000f
Morrish, Oliver
d9f27060-a357-4ab6-9909-37d4236bdfed
Wallis, Matthew G.
89b55046-29ce-4131-8c85-0ab5ed0a722f
Eccles, Diana M.
5b59bc73-11c9-4cf0-a9d5-7a8e523eee23
Warren, Ruth
2ba49c5b-5a61-447f-9fbb-820e92c60bff

Moyle, Penelope Laura, Katako, Masako, Wheeler, Kevin, Gerty, Susan, Morrish, Oliver, Wallis, Matthew G., Eccles, Diana M. and Warren, Ruth (2011) Validating “Image box”-a new approach to multicentre radiology reviews using a web-based image review system: study protocol. Journal of Biomedical Graphics and Computing, 1 (1), 24-32. (doi:10.5430/jbgc.v1n1p24).

Record type: Article

Abstract

Objectives
To validate the use of “Imagebox”- a web-based image review system for large scale multicentre trials.

Patients and Methods
As part of the multicentre trial ‘Prospective study of Outcomes in Sporadic versus Hereditary breast cancer (POSH) study’ mammograms were collected and digitised. Software was created allowing digitised mammograms to be viewed from any location with internet access. Two validation studies were performed. Firstly phantom studies using line-pairs (1–20 lpmm-1) to assess spatial resolution and the CDMAM 3.4 phantom were used to assess the visibility of gold discs for contrast detail .Secondly a comparison was made between the scoring of 77 patients’ original diagnostic analogue mammograms from 29 hospitals and the corresponding web images. Films and web images were scored by one experienced breast radiologist according to the BIRADS classification. At least 8 weeks elapsed between scoring images from the same patient.

Results
The original analogue spatial resolution was 20 lpmm-1 and web resolution of the same image reduced at 8.9 lpmm-1. Contrast detail assessment demonstrated analogue and web images with near concordance and the image quality factor, IQFinv for the web was reduced but within the 95% confidence interval of the original mammograms. BIRADS final assessment showed good agreement between the analogue and the identical web images (Kappa 0.82).

Conclusion
The overall reduction in spatial resolution did not adversely affect the quality of the diagnostic image on “Imagebox”. This may be due to its functionality, specifically the high magnification zoom which enhances diagnostic interpretation. Imagebox is a promising solution to address the logistical challenges for large breast imaging reviews and has further potential for education and self assessment.

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More information

Published date: 2011
Organisations: Cancer Sciences, Clinical Trials Unit

Identifiers

Local EPrints ID: 352475
URI: http://eprints.soton.ac.uk/id/eprint/352475
ISSN: 1925-4008
PURE UUID: c42193e7-414b-438f-82ed-ec72ef03510c
ORCID for Diana M. Eccles: ORCID iD orcid.org/0000-0002-9935-3169

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Date deposited: 14 May 2013 12:43
Last modified: 15 Mar 2024 02:40

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Contributors

Author: Penelope Laura Moyle
Author: Masako Katako
Author: Kevin Wheeler
Author: Susan Gerty
Author: Oliver Morrish
Author: Matthew G. Wallis
Author: Diana M. Eccles ORCID iD
Author: Ruth Warren

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