64 Breast Implants MRI is the most sensitive study for the detection of breast implant rupture and in the detection of cancer in women with implants. Rupture of saline implants usually occurs quickly and completely; thus imaging is rarely performed. Silicone implants are more common. On T2WI the SI of silicone is between that of water and fat. Thus when suspicion of a ruptured implant is high, water and fat suppression are implemented to facilitate visualization. Fat signal suppression is achieved by the addition of an initial inversion pulse (similar to STIR; see Chapter 34). Water signal is suppressed by a spectral technique (similar to that for fat; see Chapter 48). T2WI in Fig. 64.1 and Fig. 64.2
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