Radio-guided occult lesion localisation for breast lesions under computer-aided MRI guidance: The first experience and initial results


Yılmaz M., Kilic F. , Icten G. E. , Aydogan F., Ozben V., Halac M., ...Daha Fazla

British Journal of Radiology, cilt.85, sa.1012, ss.395-402, 2012 (SCI Expanded İndekslerine Giren Dergi) identifier identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 85 Konu: 1012
  • Basım Tarihi: 2012
  • Doi Numarası: 10.1259/bjr/30798119
  • Dergi Adı: British Journal of Radiology
  • Sayfa Sayıları: ss.395-402

Özet

Objective: The purpose of this study was to present an alternative technique for the pre-operative localisation of solely MRI-detected suspicious breast lesions using a computer-assisted MRI-guided radio-guided occult lesion localisation (ROLL) technique. Methods: Between January 2009 and June 2010, 25 females with a total of 25 suspicious breast lesions that could be detected only by MRI, and for whom breast surgery was planned, underwent the computer-assisted MRI-guided ROLL technique. A seven-channel biopsy breast array coil and computerised diagnostic workstation were used for the localisation procedure. Three-phase dynamic contrast-enhanced axial images were taken. After investigating the localisation co-ordinates with the help of intervention software on a workstation, an 18G coaxial cannula was placed in the exact position determined. Following verification of the cannula position by additional axial scans, 99mTc-labelled macroalbumin aggregate and MRI contrast material were injected. Post-procedure MRI scans were used to confirm the correct localisation. Results: All the procedures were technically successful. The mean lesion size was 10.8mm(range: 4-25mm). The mean total magnet and the mean localisation times were 28.6 min (range: 18-46 min) and 13.1 min (range: 8-20 min), respectively. Grid and pillar methods were used for localisation in 24 procedures and 1 procedure, respectively. On histopathological examination, 6 malignant, 10 high-risk and 9 benign lesions were identified. All patients tolerated the procedure well. There were no major complications. Conclusion: This is the first report documenting the application of MRI-guided ROLL. Based on our preliminary results, this technique is very efficient and seems to be a good alternative to wire localisation. © 2012 The British Institute of Radiology.