Keywords:
Breast, Ultrasound
Authors:
A. Fausto1, M. Marquart2, G. Rizzatto1; 1Gorizia/IT, 2Munich/DE
DOI:
10.1594/ecr2010/C-0439
Methods and Materials
Five healthy female volunteers (45±12 years, range 33-65) underwent bilateral contrast-enhanced (0.1 mmol/Kgbw Gd-BOPTA, Bracco Diagnostics) breast MR in supine position (1.5T, Achieva, Philips Healthcare) using T1-weighted high resolution isotropic examination volume and spectral attenuated inversion recovery fat suppression with body coil after positioning three vitamin E capsules over a corresponding surgical skin marker. Later than, each subject underwent unilateral US exam (LOGIQ E9, GE Healthcare) with high-resolution linear probe using MR volume coregistration with VNav software by means of an electromagnetic transmitter close to the subject and two small magnetic receivers positioned on a linear probe bracket. Five points in each subject were evaluated: three skin markers, nipple and internal arterial mammary or an axillary lymph node. Two independent radiologists, in a random fashion, measured twice each point-to-probe distance for fixed MR images. Time to obtain US and MR coregistration with VNav was recorded in all subjects. Pair t-Student test, Wilcoxon test and Bland-Altman plot were used.