[Contrast medium assisted dynamic MR-mammography after diagnostic and therapeutic interventions on the breast].
In a retrospective study, the authors evaluated the signal behavior of 150 patients after intervention in the breast (40 fine-needle biopsies, 10 core biopsies, 50 open biopsies, 50 tumor-ectomies with additional irradiation therapy). The MR imaging was performed on 1.5-Tesla whole-body scanners using T1-WI GRE sequences in 2D FLASH technique before and 5 times after i.v. application of 0.1 mmol gadopentetate-dimeglumine per kg body weight. There was no signal enhancement after fine-needle biopsy. Hematoma due to core biopsy caused signal increase in every 5th patient. Enhancement after open biopsy was no more visible 6 months postoperatively. 12 months after tumorectomy and radiation therapy, most patients showed no more signal enhancement. In conclusion, MR mammography can be performed after fine-needle biopsy without problems. In case of core biopsy, hematoma should be excluded by sonography before. MR mammography should not be performed within 6 months after open biopsy, or within 12 months after tumorectomy and radiation therapy.
Fischer
U
U
Abteilung Röntgendiagnostik I, Georg-August-Universität Göttingen.
Vosshenrich
R
R
Kopka
L
L
Kahlen
O
O
Grabbe
E
E
D001706:Biopsy; D001940:Breast / Q000473:pathology*; D001943:Breast Neoplasms / Q000175:diagnosis* / Q000473:pathology / Q000601:surgery; D003131:Combined Modality Therapy; D003287:Contrast Media; D004338:Drug Combinations; D005260:Female; D005348:Fibrocystic Breast Disease / Q000175:diagnosis* / Q000473:pathology / Q000601:surgery; D019786:Gadolinium DTPA; D006801:Humans; D008279:Magnetic Resonance Imaging / Q000379:methods*; D015412:Mastectomy, Segmental; D008536:Meglumine; D009942:Organometallic Compounds; D004369:Pentetic Acid / Q000031:analogs & derivatives*; D011183:Postoperative Complications / Q000175:diagnosis; D018714:Radiotherapy, Adjuvant; D012189:Retrospective Studies
D003287:Contrast Media; D004338:Drug Combinations; D009942:Organometallic Compounds; D008536:Meglumine; D004369:Pentetic Acid; D019786:Gadolinium DTPA
Kontrastmittelgestützte dynamische MR-Mammographie nach diagnostischen und therapeutischen Eingriffen an der Mamma.