Fig. 3.
Typical axial T1-weighted and T2*-weighted images at 1.5 T. The first column (a, b) and the second column (c, d) both represent a patient in the high-dose (HD) group with grade 3 and grade 2 artefacts, respectively. The third column (e, f) represents a patient in the low-dose (LD) group with grade 1 artefacts. Grade 3 artefact: a patient from the HD group with an history of breast conserving surgery (BCS) with magnetic sentinel lymph node biopsy (SLNB) because of invasive ductal cancer (pT1c N1 M0). Follow-up imaging was performed 3 years after BCS. Grade 2 artefact: a patient from the HD group with an history of BCS with magnetic SLNB because of invasive ductal cancer (pT1 cN0 M0). Follow-up imaging was performed 3.3 years after BCS. Grade 1 artefact: a patient from the LD group with an history of BCS with magnetic SLNB because of invasive carcinoma (no special type, pT1c N0 M0). Follow-up imaging was performed 7 months after BCS.