Universität zu Köln

Eminaga, Okyaz, Semjonow, Axel, Eltze, Elke, Bettendorf, Olaf, Schultheis, Anne, Warnecke-Eberz, Ute, Akbarov, Ilgar, Wille, Sebastian and Engelmann, Udo (2016). Analysis of topographical distribution of prostate cancer and related pathological findings in prostatectomy specimens using cMDX document architecture. J. Biomed. Inform., 59. S. 240 - 248. SAN DIEGO: ACADEMIC PRESS INC ELSEVIER SCIENCE. ISSN 1532-0480

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Abstract

Introduction: Understanding the topographical distribution of prostate cancer (PCa) foci is necessary to optimize the biopsy strategy. This study was done to develop a technical approach that facilitates the analysis of the topographical distribution of PCa foci and related pathological findings (i.e., Gleason score and foci dimensions) in prostatectomy specimens. Material & methods: The topographical distribution of PCa foci and related pathologic evaluations were documented using the cMDX documentation system. The project was performed in three steps. First, we analyzed the document architecture of cMDX, including textual and graphical information. Second, we developed a data model supporting the topographic analysis of PCa foci and related pathologic parameters. Finally, we retrospectively evaluated the analysis model in 168 consecutive prostatectomy specimens of men diagnosed with PCa who underwent total prostate removal. The distribution of PCa foci were analyzed and visualized in a heat map. The color depth of the heat map was reduced to 6 colors representing the PCa foci frequencies, using an image posterization effect We randomly defined 9 regions in which the frequency of PCa foci and related pathologic findings were estimated. Results: Evaluation of the spatial distribution of tumor foci according to Gleason score was enabled by using a filter function for the score, as defined by the user. PCa foci with Gleason score (GIs) 6 were identified in 67.3% of the patients, of which 55 (48.2%) also had PCa foci with GIs between 7 and 10. Of 1173 PCa foci, 557 had GIs 6, whereas 616 PCa foci had Gls > 6. PCa foci with Gls 6 were mostly concentrated in the posterior part of the peripheral zone of the prostate, whereas PCa foci with Gls > 6 extended toward the basal and anterior parts of the prostate. The mean size of PCa foci with Gls 6 was significantly lower than that of PCa with Gls > 6 (P < 0.0001). Conclusion: The cMDX-based technical approach facilitates analysis of the topographical distribution of PCa foci and related pathologic findings in prostatectomy specimens. (C) 2015 Elsevier Inc. All rights reserved.

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Eminaga, Okyaz UNSPECIFIED UNSPECIFIED UNSPECIFIED Semjonow, Axel UNSPECIFIED UNSPECIFIED UNSPECIFIED Eltze, Elke UNSPECIFIED UNSPECIFIED UNSPECIFIED Bettendorf, Olaf UNSPECIFIED UNSPECIFIED UNSPECIFIED Schultheis, Anne UNSPECIFIED UNSPECIFIED UNSPECIFIED Warnecke-Eberz, Ute UNSPECIFIED UNSPECIFIED UNSPECIFIED Akbarov, Ilgar UNSPECIFIED UNSPECIFIED UNSPECIFIED Wille, Sebastian UNSPECIFIED UNSPECIFIED UNSPECIFIED Engelmann, Udo UNSPECIFIED UNSPECIFIED UNSPECIFIED
URN:	urn:nbn:de:hbz:38-284859
DOI:	10.1016/j.jbi.2015.12.009
Journal or Publication Title:	J. Biomed. Inform.
Volume:	59
Page Range:	S. 240 - 248
Date:	2016
Publisher:	ACADEMIC PRESS INC ELSEVIER SCIENCE
Place of Publication:	SAN DIEGO
ISSN:	1532-0480
Language:	English
Faculty:	Unspecified
Divisions:	Unspecified
Subjects:	no entry
Uncontrolled Keywords:	Keywords Language RADICAL PROSTATECTOMY; SPATIAL-DISTRIBUTION; GLEASON SCORE; NEEDLE-BIOPSY; TUMOR VOLUME; CARCINOMA; PATTERN; SYSTEM; ATLAS; MAP Multiple languages Computer Science, Interdisciplinary Applications; Medical Informatics Multiple languages
Refereed:	Yes
URI:	http://kups.ub.uni-koeln.de/id/eprint/28485