ISSN: 1899-0967
Polish Journal of Radiology
Established by prof. Zygmunt Grudziński in 1926 Sun
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2019
vol. 84
 
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Musculoskeletal radiology
abstract:
Original paper

Whole-body diffusion-weighted imaging with background body signal suppression in the detection of osseous and extra-osseous metastases

Ahmed Abdel Razek
,
Ahmed Tawfik
,
Mariam Abdel Rahman
,
Saleh Teima

© Pol J Radiol 2019; 84: e453-e458
Online publish date: 2019/11/12
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Purpose
To assess the reproducibility of detection of osseous and extra-osseous metastases in cancer patients using whole-body diffusion-weighted imaging with background body signal suppression (WB-DWIBS).

Material and methods
A prospective study was conducted on 39 consecutive patients (21 females, 18 males; mean age 48 years) with metastases, who underwent WB-DWIBS on a 1.5-T MR scanner. Image analysis was performed independently by two blinded observers. Inter-observer agreement was assessed for the detection of osseous (spinal, appendicular) and extra-osseous (hepatic, pulmonary, nodal, and peritoneal) metastases.

Results
The overall inter-observer agreement of WB-DWIBS in the detection of osseous and extra-osseous metastases was excellent (k = 0.887, agreement = 94.44%, p = 0.001). There was excellent inter-observer agreement of both observers for the detection of osseous spinal (k = 0.846, agreement = 92.3%), osseous appendicular (k = 0.898, agreement = 94.8 %), hepatic (k = 0.847, agreement = 92.3%), pulmonary (k = 0.938, agreement = 97.4%), nodal metastases (k = 0.856, agreement = 94.9%), and peritoneal metastasis (k = 0.772, agreement = 94.9%).

Conclusion
We concluded that WB-DWIBS is reproducible for detection of osseous and extra-osseous metastases in cancer patients.

keywords:

metastases, whole-body, DWIBS, diagnosis, staging

 
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