The different MRI sequences to detect breast lesions in polyacrylamide hydrogel injection for augmentation patients: a comparative study

Abstract

Objective To explore the detective values of various MRI sequences in breast polyacrylamide hydrogel (PAHG) injection for augmentation patients. Methods A total of 80 patients who have been injected for augmentation and who have suspected breast lesions were subjected to MRI scanning. The MRI scan sequence included T1 weighted imaging (T1WI) , T2 weighted imaging (T2WI) , short time inversion recovery (STIR) , diffusion weighted imaging (DWI) and MR hydrography (MRH) , as well as liver acquisition with valume acceleration (LAVA) dynamic contrast-enhanced sequence. The main sequence analysis indicators included the detection rate of breast disease and breast cancer, and to analyze statistically. Results A total of 86 lesions were observed in 160 breasts. The breast-lesion detection rates of the T1WI, T2WI, STIR, DWI and MRH, as well as LAVA dynamic contrast-enhanced sequence were 32.56% (28/86) , 61.11% (53/86) , 63.88% (55/86) , 41.66% (36/86) , 89.53% (77/86) , and 100% (86/86) , respectively; the breast-cancer detection rates of these sequences were 33.33% (10/30) , 66.67% (20/30) , 66.67% (20/30) , 46.67% (14/30) , 100% (30/30) , and 100% (30/30) , respectively. Each MRI scanning sequence of breast-lesion detection rate of R×C cross-table analysis, χ2=129.428, P 0.05) , whereas those in the other scanning sequences were statistically significant (χ2=6.729~87.509, all P 0.05) , whereas those of the other sequences were statistically significant (χ2=12.000~30.000, all P<0.05) . Conclusions The total detection rate of breast lesions with PAHG injection for augmentation mammoplasty by DWI and LAVA-enhanced sequence wasthe highest. Rational use of MRI sequence will help improve the lesion detection rate of patients' breast augmentation PAHG injection and has important clinical value. Key words: Magnetic resonance imaging; Breast disease; Injection breast augmentation; Polyacrylamide hydrogel; Diagnostic Imaging