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Proceedings Paper

Agreement assessment in size measurement of hepatic metastases
Author(s): Yangchen Zheng; Ibrahim Karademir; Leon Wise; Aytekin Oto; Yahui Peng
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Paper Abstract

The purpose of the study was to investigate patient-wise agreement among multiparametric magnetic resonance (MR) imaging sequences and radiologists, respectively, in the size assessment of hepatic metastases. A total of 30 liver metastases were identified from 20 patients and three radiologists independently measured the long and short axes for all metastases in T1-weighted, T2-weighted, diffusion-weighted imaging (DWI) with b of 0 and 800 s/mm2, and the apparent diffusion coefficient (ADC) map. We calculated the patient-wise intraclass correlation coefficient (ICCs) to estimate the interobserver and intersequence agreement in measured lesion size. Interobserver ICCs were 0.92-0.98 for different MR sequences and intersequence ICCs were 0.93-0.98. In conclusion, multiparametric MR imaging is a reliable tool for hepatic metastatic lesion measurement.

Paper Details

Date Published: 23 January 2017
PDF: 7 pages
Proc. SPIE 10322, Seventh International Conference on Electronics and Information Engineering, 103220A (23 January 2017); doi: 10.1117/12.2265986
Show Author Affiliations
Yangchen Zheng, Beijing Jiaotong Univ. (China)
Ibrahim Karademir, Univ. of Chicago Medical Ctr. (United States)
Leon Wise, Univ. of Chicago Medical Ctr. (United States)
Aytekin Oto, Univ. of Chicago Medical Ctr. (United States)
Yahui Peng, Beijing Jiaotong Univ. (China)

Published in SPIE Proceedings Vol. 10322:
Seventh International Conference on Electronics and Information Engineering
Xiyuan Chen, Editor(s)

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