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Vol. 62. Issue 3.
Pages 198-204 (May - June 2020)
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Vol. 62. Issue 3.
Pages 198-204 (May - June 2020)
Original articles
DOI: 10.1016/j.rxeng.2019.11.006
Value of an abbreviated protocol of breast magnetic resonance imaging for screening high-risk patients
Valor del protocolo abreviado de resonancia magnética mamaria en el cribado de pacientes de alto riesgo
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D. Marquina Martíneza,b,
Corresponding author
diamarquina@gmail.com

Corresponding author.
, S. Cruz Ciriaa,b, A.I. García Barradoa, I. Suñén Amadora, C. García Mura
a Departamento de Radiología Mamaria, Servicio de Radiodiagnóstico, Hospital Universitario Miguel Servet, Zaragoza, Spain
b Servicio de Radiodiagnóstico, Hospital San Jorge, Huesca, Spain
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Tables (3)
Table 1. Characteristics of the study patients.
Table 2. Tumours identified by the complete MRI protocol classified according to BI-RADS and their management.
Table 3. Sensitivity (S), specificity (Sp), positive predictive value (PPV), negative predictive value (NPV) and validity (V) together with their respective 95 % confidence intervals.
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Abstract
Objective

Value the utility of breast MRI abbreviated protocols for the screening of breast cancer in high-risk patients compared to the full protocol.

Methods

We performed a retrospective review of 157 breast MRI of 82 high-risk patients practiced in our hospital between January 2011 and January 2017. Clinical, radiological and anatomopathological parameters were analyzed. Reading of the different protocols (MIP, abbreviated and full) was made by an expert radiologist. Subsequent statistical analysis was done.

Results

A total amount of 12 findings classified as BI-RADS 4 and 5 were identified and performed a biopsy, resulting 11 of them to be malignant (91.67 %) and 1 benign (8.33 %). The malignant wounds included 4 intraductal carcinoma (33.33 %) and 7 infiltrating ductal carcinoma (58.33 %). All injuries were detected with the three protocols and no significant differences were found between their respective area under the ROC curve (p = 0.0650).

Conclusions

In our study there are no significant differences between the different protocols (MIP, abbreviated and full), which places the abbreviated protocol as a promising tool for breast cancer screening in high-risk patients.

Keywords:
Breast cancer
Cancer screening
High-risk
Breast magnetic resonance
Abbreviated protocol
Resumen
Objetivo

Valorar la utilidad de los protocolos abreviados de resonancia magnética (RM) mamaria en el cribado de cáncer de mama en pacientes de alto riesgo, en comparación con el protocolo completo, y determinar la precisión diagnóstica en la caracterización de las lesiones mamarias de ambos protocolos.

Material y métodos

Se revisaron retrospectivamente 157 estudios de RM mamaria de 82 pacientes de alto riesgo realizadas en nuestro centro, desde enero de 2011 hasta enero de 2017. Se analizaron parámetros clínicos, radiológicos y anatomopatológicos. Se realizó la lectura de los diferentes protocolos: MIP, abreviado y completo por un radiólogo experto. Posteriormente se hizo un análisis estadístico.

Resultados

Se identificaron un total de 12 lesiones clasificadas en categoría BI-RADS 4 y 5 que fueron biopsiadas, de las cuales 11 resultaron ser malignas (91,67 %) y 1 benigna (8,33 %). Las lesiones malignas fueron: 4 carcinomas intraductales (33,33 %) y 7 carcinomas ductales infiltrantes (58,33 %). Todas las lesiones fueron detectadas con los tres protocolos y no se encontraron diferencias significativas entre sus respectivas áreas bajo la curva (p = 0,0650).

Conclusiones

En nuestro estudio no existen diferencias significativas entre los distintos protocolos (MIP, abreviado y completo). El protocolo abreviado se perfila como una herramienta prometedora en el cribado de cáncer de mama en pacientes de alto riesgo.

Palabras clave:
Cáncer de mama
Cribado
Alto riesgo
RM mamaria
Protocolo abreviado

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