Research Article

Assessment of hemorrhage and paramagnetic substance accumulation in brain metastases by susceptibility weighted imaging

Volume: 43 Number: 1 March 31, 2021
EN

Assessment of hemorrhage and paramagnetic substance accumulation in brain metastases by susceptibility weighted imaging

Abstract

Objective: We aimed to make a differential diagnosis of brain metastases by using the percentage of the ITSS by the SWI sequence.
Method: MR images of 77 patients with intracerebral metastases were evaluated in this study who had breast carcinoma (BC)(n=23), malignant melanoma (MM)(n=4), lung cancer (LC) (n=42), and gastrointestinal adenocancer (GIA)(n=8) as the primary tumor. We calculated the ratio of the ITSS pixels.
Results: ITSS percentages of metastases were found 22.52% in LC, 47.61% in GIA, 11.85% in BC, and 60.75% in MM. In terms of differential diagnosis of the ITSS percentages measured in the SWI sequence, the diagnostic performance was very good between MM-BC, good between MM-LC, GIA-LC, and GIA-BC, and poor between LC-BC and GIA-MM. Percentages of ITSS had high sensitivity and specificity to make a differential diagnosis between GIA-LC, GIA-BC, MM-BC, and MM-LC.
Conclusions: We conclude that measuring the ITSS percentage values of metastases when evaluating brain masses by MRI will provide valuable additional information for differential diagnosis.

Keywords

References

  1. [1]. Khan RBDL. Brain metastases. In: Schiff DWP, editor. Cancer neurology in clinical practice. Totawa, NJ, USA: Humana Press; 2003 [2]. Radbruch A, Graf M, Kramp L, Wiestler B, Floca R, Bäumer P, et al. Differentiation of brain metastases by percentagewise quantification of intratumoral susceptibility signals at 3Tesla. Eur J Radiol. 2012 Dec; 81(12):4064–8. [PubMed: 22795527]

Details

Primary Language

English

Subjects

Health Care Administration

Journal Section

Research Article

Publication Date

March 31, 2021

Submission Date

February 20, 2021

Acceptance Date

March 31, 2021

Published in Issue

Year 2021 Volume: 43 Number: 1

AMA
1.Gölbaşı A, Şalk İ, Bozbıyık N, Yıldız B. Assessment of hemorrhage and paramagnetic substance accumulation in brain metastases by susceptibility weighted imaging. CMJ. 2021;43(1):31-40. doi:10.7197/cmj.882521