Scintimammography with 99mTc-MIBI in clinical practice. Repercussion on the clinical management of the patient
Establish the usefulness of scintimammography (SM) in day-to-day clinical practice. We have evaluated 308 SM consecutively performed in our Department. The diagnosis was established by way of biopsy or clinical and mammography follow-up (minimum 18 months). In all cases we evaluated the kind of lesi...
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Veröffentlicht in: | Revista española de medicina nuclear 2007-05, Vol.26 (3), p.153-159 |
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Zusammenfassung: | Establish the usefulness of scintimammography (SM) in day-to-day clinical practice.
We have evaluated 308 SM consecutively performed in our Department. The diagnosis was established by way of biopsy or clinical and mammography follow-up (minimum 18 months). In all cases we evaluated the kind of lesions (palpable or non-palpable) and their degree of suspicion of malignancy in the mammography (BIRADS). We determined the number of fine-needle aspiration cytology (FNAC) or biopsies performed in dependence of kind of lesions, mammography and SM results.
Final diagnosis was cancer in 18 % of the patients, and 71 % of the lesions were non palpable. Negative predictive value (NPV) of SM was 96 %. Pathological diagnosis was performed in 100 % of lesions with SM+ and 16 % of lesions with SM–. According to the kind of lesion, FNAC and/or biopsy was performed in 62 % of palpable lesions and in 20 % of non-palpable lesions; and according to the mammography in 21 % of lesions BIRADS I-II, 14 % in BIRADS III, 70 % in BIRADS IV and 100 % in BIRADS V. The number of FNAC and/or biopsies performed is significantly higher in all cases when SM is positive (p >0.001), excepting in BIRADS V lesions.
In day-to-day clinical practice SM is generally performed in low prevalence of breast cancer population, in the evaluation of non-palpable lesions with a low suspicion of malignancy. SM has a high NPV, increase the diagnostic accuracy of the mammography and has repercussion on patient management, except in BIRADS V lesions.
Valorar el papel de la gammagrafía de mama (GM) en la práctica clínica.
Hemos revisado 308 GM realizadas en nuestro servicio. El diagnóstico se estableció mediante citología y/o biopsia o por seguimiento clínico/mamográfico superior a 18 meses. En todos los casos se valoró el tipo de lesión (palpable o no) y su sospecha de malignidad en mamografía (BIRADS). Se determinó el número de punciones aspiraciones con aguja fina (PAAF) y/o biopsias realizadas en dependencia del resultado de la GM, tipo de lesión y mamografía.
El diagnóstico final fue de cáncer en el 18% de las pacientes, siendo no palpables el 71 % de las lesiones. El valor predictivo negativo (VPN) de la GM fue del 96 %. Se realizó diagnóstico anatomopatológico en el 100 % de lesiones con GM positiva y en el 16 % de lesiones con GM negativa. Dependiendo del tipo de lesión, se practicó PAAF y/o biopsia en el 62 % de lesiones palpables y en el 20 % de las no palpables; según la mamografía, en el 21 % de les |
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ISSN: | 1578-200X 0212-6982 1578-200X |
DOI: | 10.1016/S1578-200X(07)70056-6 |