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dc.contributor.authorErtas, Gokhan
dc.contributor.authorTunaci, Mehtap
dc.contributor.authorGÜLÇÜR, HALİL ÖZCAN
dc.date.accessioned2021-03-03T15:00:18Z
dc.date.available2021-03-03T15:00:18Z
dc.date.issued2008
dc.identifier.citationErtas G., GÜLÇÜR H. Ö. , Tunaci M., "Normalized maximum intensity time ratio maps and morphological descriptors for assessment of malignancy in MR mammography", MEDICAL PHYSICS, cilt.35, sa.5, ss.1893-1900, 2008
dc.identifier.issn0094-2405
dc.identifier.otherav_3ca3085a-b5e1-4c5f-9605-3631904c8f2e
dc.identifier.othervv_1032021
dc.identifier.urihttp://hdl.handle.net/20.500.12627/44681
dc.identifier.urihttps://doi.org/10.1118/1.2891365
dc.description.abstractEffectiveness of morphological descriptors based on normalized maximum intensity-time ratio (nMITR) maps generated using a 3x3 pixel moving mask on dynamic contrast-enhanced magnetoresistance (MR) mammograms are studied for assessment of malignancy. After a rough indication of volume of interest on the nMITR maps, lesions are automatically segmented. Two-dimensional (2D) convexity, normalized complexity, extent, and eccentricity as well as three-dimensional (3D) versions of these descriptors and contact surface area ratio are computed. On a data set consisting of dynamic contrast-enhanced MR DCE-MR mammograms from 51 women that contain 26 benign and 32 malignant lesions, 3D convexity, complexity, and extent are found to reflect aggressiveness of malignancy better than 2D descriptors. Contact surface area ratio which is easily adaptable to different imaging resolutions is found to be the most significant and accurate descriptor (75% sensitivity, 88% specificity, 89% positive predictive values, and 74% negative predictive values). (C) 2008 American Association of Physicists in Medicine.
dc.language.isoeng
dc.subjectNükleer Tıp
dc.subjectDahili Tıp Bilimleri
dc.subjectSağlık Bilimleri
dc.subjectTıp
dc.subjectKlinik Tıp (MED)
dc.subjectKlinik Tıp
dc.subjectRADYOLOJİ, NÜKLEER TIP ve MEDİKAL GÖRÜNTÜLEME
dc.titleNormalized maximum intensity time ratio maps and morphological descriptors for assessment of malignancy in MR mammography
dc.typeMakale
dc.relation.journalMEDICAL PHYSICS
dc.contributor.departmentBoğaziçi Üniversitesi , ,
dc.identifier.volume35
dc.identifier.issue5
dc.identifier.startpage1893
dc.identifier.endpage1900
dc.contributor.firstauthorID187460


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