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Fat suppression techniques (STIR vs. SPAIR) on diffusion-weighted imaging of breast lesions at 3.0 T: preliminary experience

2015Journal article Open access
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dc.contributor.authorBrandão, Sofia
dc.contributor.authorNogueira, Luísa
dc.contributor.authorMatos, Eduarda
dc.contributor.authorNunes, Rita Gouveia
dc.contributor.authorFerreira, Hugo Alexandre
dc.contributor.authorLoureiro, Joana
dc.contributor.authorRamos, Isabel
dc.date.accessioned2019-07-01T15:55:48Z
dc.date.available2019-07-01T15:55:48Z
dc.date.issued2015
dc.description.abstractPurpose The aim of this work was to perform a qualitative and quantitative comparison of the performance of two fat suppression techniques on breast diffusion-weighted imaging (DWI). Materials and methods Fifty-one women underwent clinical breast magnetic resonance imaging, including DWI with short TI inversion recovery (STIR) and spectral attenuated inversion recovery (SPAIR). Four were excluded from the analysis due to image artefacts. Rating of fat suppression uniformity and lesion visibility were performed. Agreement between the two sequences was evaluated. Additionally, signal-to-noise ratio (SNR), contrast-to-noise ratio (CNR), and apparent diffusion coefficient (ADC) values for normal gland, benign and malignant lesions were compared. Receiver operating characteristic analysis was also performed. Results From the 52 lesions found, 47 were detected by both sequences. DWI-STIR evidenced more homogeneous fat suppression (p = 0.03). Although these lesions were seen with both techniques, DWI-SPAIR evidenced higher score for lesion visibility in nine of them. SNR and CNR were comparable, except for SNR in benign lesions (p < 0.01), which was higher for DWI-SPAIR. Mean ADC values for lesions were similar. ADC for normal fibroglandular tissue was higher when using DWI-STIR (p = 0.006). Sensitivity, specificity, accuracy and area under the curve values were alike: 84.0 % for both; 77.3, 71.4 %; 80.9, 78.3 %; 82.5, 81.3 % for DWI-SPAIR and DWI-STIR, respectively. Conclusion DWI-STIR showed superior fat suppression homogeneity. No differences were found for SNR and CNR, except for SNR in benign lesions. ADCs for lesions were comparable. Findings in this study are consistent with previous studies at 1.5 T, meaning that both fat suppression techniques are appropriate for breast DWI at 3.0 T.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.doi10.1007/s11547-015-0508-2pt_PT
dc.identifier.urihttp://hdl.handle.net/10400.22/14205
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherSpringerpt_PT
dc.relationSFRH/BD/50027/2009pt_PT
dc.relationStrategic Project - UI 645 - 2011-2012
dc.relation.publisherversionhttps://link.springer.com/article/10.1007%2Fs11547-015-0508-2pt_PT
dc.subjectAdipose Tissuept_PT
dc.subjectBreast Neoplasmspt_PT
dc.subjectContrast Mediapt_PT
dc.subjectDiagnosis, Differentialpt_PT
dc.subjectDiffusion Magnetic Resonance Imagingpt_PT
dc.subjectFemalept_PT
dc.subjectImage Enhancementpt_PT
dc.subjectImage Interpretation, Computer-Assistedpt_PT
dc.subjectProspective Studiespt_PT
dc.subjectSensitivity and Specificitypt_PT
dc.titleFat suppression techniques (STIR vs. SPAIR) on diffusion-weighted imaging of breast lesions at 3.0 T: preliminary experiencept_PT
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitleStrategic Project - UI 645 - 2011-2012
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/PEst-OE%2FSAU%2FUI0645%2F2011/PT
oaire.citation.endPage713pt_PT
oaire.citation.issue8pt_PT
oaire.citation.startPage705pt_PT
oaire.citation.titleRadiologia Medicapt_PT
oaire.citation.volume120pt_PT
oaire.fundingStream6817 - DCRRNI ID
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT
relation.isProjectOfPublication5b115a5c-07c5-4f80-af5e-d815e8d8d51c
relation.isProjectOfPublication.latestForDiscovery5b115a5c-07c5-4f80-af5e-d815e8d8d51c

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