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Keywords:
Breast, Mammography, Diagnostic procedure, Cancer
Authors:
P. MARTÍNEZ MIRAVETE1, M. Millor Muruzábal2, P. García-Barquín2, A. Elizalde2, L. J. Pina Insausti2, J. Etxano2, P. Bartolomé2; 1Zaragoza/ES, 2Pamplona/ES
DOI:
10.1594/ecr2015/B-0211
Purpose
INTRODUCTION:
Increased mammographic breast density is a moderate independent risk factor for breast cancer.
The odds ratio for developing cancer for the most compared with the least dense breast tissue categories ranges from 1.8 to 6.
Different classifications based on qualitative or quantitative criteria have been described.
One of the most common used is ACR (BIRADS) classification based on density categories.
[1]
Digital mammography (2DM) remains the most commonly used procedure for mammographic screening.
It performs bidimensional images while emitting the radiation dose in a predetermined direction from a static x-ray tube.
Studies of tomosynthesis (3DM) obtain consecutive tridimensional images,
while the x-ray tube moves performing an arc of variable amplitude while emitting regular pulses of low-dose radiation.
Recently,
a new concept has been introduced,
the synthesized digital mammography (Synthesized-DM).
It is based on obtaining conventional mammography image data from different slices of tomosynthesis.
The main advantage of this new system is that it reduces the radiation dose,
by approximately 40%-50%,
because the conventional DM is not needed.
[2,3]
So,
the purpose of our study was:
- To evaluate the different ACR (BIRADS) density patterns observed in Conventional Digital Mammography (2D-DM) compared to Synthesized Digital Mammography (Synthesized-DM).