title: The comparison of dual phase Tc-99m MIBI and tc-99m MDP scintimammography in the evaluation of breast masses: preliminary report.
abstract: The aim of this prospective study was to determine the diagnostic value of Tc-99m MDP scintimammography (SMG) for the detection of breast cancer in patients with breast masses and to compare the results with Tc-99m MIBI scintimammography. Twenty patients, categorized as suspicious, positive or benign for breast cancer according to the mammographic findings were included in the study. Dual phase Tc-99m MIBI and Tc-99m MDP SMG were performed in the prone lateral position within 5 days of each other. Although early and late Tc-99m MIBI SMG showed equal (90.4%) sensitivity, the specificity of late Tc-99m MIBI (87.5%) was found superior to early (62.5%) imaging. The overall sensitivity and specificity of early Tc-99m MDP SMG were 71.4% and 62.5%, respectively. Although late Tc-99m MDP imaging showed 100% specificity, its sensitivity was only 23.8%. In the patients with palpable masses, both early Tc-99m MDP and Tc-99m MIBI showed equal sensitivity (100%), but the sensitivity of early Tc-99m MIBI (37.5%) was found slightly higher than Tc-99m MDP (25.0%) for nonpalpable breast lesions. The sensitivity of Tc-99m MIBI and Tc-99m MDP SMG in detecting metastatic axillary involvement was 66.6% and 50%, respectively. High sensitivity and specificity together with its low cost, easy availability and the possibility of detecting bone metastases seems to make Tc-99m MDP a contributive agent in the evaluation of breast lesions as an alternative to Tc-99m MIBI.
authors.affiliation: Department of Nuclear Medicine, Gülhane Military Medical Academy and Medical Faculty, Ankara, Turkey. nuria@gata.edu.tr
authors.forename: N
authors.initials: N
authors.lastname: Arslan
authors.forename: E
authors.initials: E
authors.lastname: Ozturk
authors.forename: S
authors.initials: S
authors.lastname: Ilgan
authors.forename: Y
authors.initials: Y
authors.lastname: Narin
authors.forename: S
authors.initials: S
authors.lastname: Dundar
authors.forename: T
authors.initials: T
authors.lastname: Tufan
authors.forename: M
authors.initials: M
authors.lastname: Pekcan
authors.forename: H
authors.initials: H
authors.lastname: Bayhan
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D001940:Breast / Q000000981:diagnostic imaging*; D001943:Breast Neoplasms / Q000000981:diagnostic imaging* / Q000473:pathology; D005260:Female; D006801:Humans; D008198:Lymph Nodes / Q000000981:diagnostic imaging; D008207:Lymphatic Metastasis; D008327:Mammography; D008875:Middle Aged; D011237:Predictive Value of Tests; D011877:Radionuclide Imaging; D019275:Radiopharmaceuticals; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity; D013669:Technetium Tc 99m Medronate; D017256:Technetium Tc 99m Sestamibi
chemical_list: D019275:Radiopharmaceuticals; D017256:Technetium Tc 99m Sestamibi; D013669:Technetium Tc 99m Medronate