title: Real-time MR imaging guidance for percutaneous core biopsy of US- and CT-negative lesion.
abstract: Biopsies traditionally are performed under ultrasound (US), computed tomography (CT), or fluoroscopic guidance. In situations in which lesions are difficult to visualize with US or CT guidance, magnetic resonance (MR) imaging often can provide better imaging results. The authors describe a case in which a recurrent calf mass not well visualized under fluoroscopy, CT, or US was identified on MR imaging. In the absence of real-time needle visualization, percutaneous interventions under MR guidance have been limited by prohibitively long imaging times. A novel guidance system providing real-time MR guidance of needle position was used to procure a core biopsy specimen of the lesion.
authors.affiliation: Department of Diagnostic Imaging, Division of Interventional Radiology, University of Maryland Medical Center, Baltimore, MD 21201, USA. hrichard@umm.edu
authors.forename: Howard M
authors.initials: HM
authors.lastname: Richard
authors.forename: Alan
authors.initials: A
authors.lastname: McMillan
authors.forename: Paul N
authors.initials: PN
authors.lastname: Staats
authors.forename: Bertrand Janne
authors.initials: BJ
authors.lastname: d'Othee
mesh_terms: D000328:Adult; D001707:Biopsy, Needle; D005870:Giant Cell Tumors / Q000473:pathology*; D006801:Humans; D061705:Image-Guided Biopsy / Q000379:methods*; D007866:Leg; D053783:Magnetic Resonance Imaging, Interventional; D008297:Male; D011237:Predictive Value of Tests; D015641:Radiography, Interventional / Q000379:methods*; D014057:Tomography, X-Ray Computed; D018084:Ultrasonography, Interventional