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Comparison of outcomes of free hand 2D-ultrasound guided versus navigated 3D-ultrasound guided biopsy for supratentorial tumors: a single institution experience with 125 cases
Aditya Patil, Vikas Singh, Vivek Sukumar, Prakash Shetty, Aliasgar Moiyadi
ACTREC, Tata Memorial Centre, Mumbai, India
Corresponding Author: Aliasgar Moiyadi ,Tel: 919324696948, Fax: 9127405061, Email: aliasgar.moiyadi@gmail.com
Received: June 20, 2018;  Accepted: December 8, 2018.  Published online: December 8, 2018.
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ABSTRACT
Purpose:
To evaluate the relative utility and benefits of two techniques of ultrasound guided biopsies (USGB) for supratentorial lesions using either free-hand 2D intraoperative ultrasound (FUS) or navigated (3D) intraoperative ultrasound (NUS).
Methods:
All patients who underwent ultrasound guided biopsy for suspected supratentorial tumors from January 2008- December 2017 were retrospectively analyzed. Charts and electronic medical records of these patients were studied. The demographic, surgical and pathological variables were collected and analysed. Study group consisted of patients who either underwent FUS or NUS for biopsy.
Results:
125 patients (112 adults and 13 children) underwent USGB during the study period - 89 FUS and 36 NUS. NUS was used more often for deeper lesions (58% vs 18% for FUS, p < 0.0001). Mean operative time for NUS was longer than FUS (156 vs 124 minutes, p = 0.0013). Representative yield for FUS was 97.7% and for NUS was 100% (diagnostic yield -93.6% and 91.3% respectively). Majority of lesions (89%) were high grade gliomas or lymphomas. Postoperative complications were higher in NUS group (8.3 vs 1.2 %) but were related to the tumor location (deep).
Conclusion:
Despite of relatively longer operation time and higher rate of postoperative complications NUS has a benefit of deep-seated lesions while FUS would be valuable in superficial lesions for biopsy of supratentorial lesions.
Keywords: Ultrasonography; Neuronavigation; Stereotactic; Biopsy; Glioma
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