The invention discloses a biopsy needle system (100, 200, 300), having: a hollow needle (100) having a cylindrical portion (102) adapted to be introduced into a patient, wherein the cylindrical portion comprises a first material； a first mandrin (200) comprising a sharp tip (204) and that may be introduced into the hollow needle (100) such that the tip (204) and an opposing end (206) of the first mandrin (200) project from the opposing end of the hollow needle (100), if the hollow needle (100) is located in the patient, wherein the sharp tip (204) is adapted to pierce tissue； characterized by an imaging mandrin (300) comprising a second needle and that may be inserted into the hollow needle (100) if the hollow needle (100) if the hollow needle is located in a patient, wherein the second material is a material that may be imaged appropriately during MR-imaging.
