Abstract
BackgroundThis study aimed to investigate the value of high field-strength intraoperative magnetic resonance imaging (iMRI)-guided stereotactic biopsy in the surgery of intracranial space-occupying lesions.MethodsA total of 87 patients who underwent stereotactic biopsy of intracranial lesions in the Peking University International Hospital from March 2016 to August 2018 were retrospectively surveyed; among these, 50 patients underwent MRI-guided stereotactic biopsy using the Leksell frame (iMRI group) and 37 cases received traditional stereotactic biopsy using the Leksell frame (control group). The accuracy rates and complications of the two groups were compared.ResultsA 100% positive diagnosis was observed in all cases (n = 50) in the iMRI group. In 4 cases, the biopsy site was clearly found to have deviated from the target point, and the biopsy was performed again. The control group had 33 cases (86.5%) with positive diagnosis. No severe complications like neural functional deficit were observed in the iMRI group, while two patients developed bleeding at the puncture site (1 case receiving surgery to remove the hematoma) in the control group. There were no deaths in either group.ConclusioniMRI-assisted stereotactic biopsy can confirm the target position and adjust the puncture path in real time. Compared to the traditional stereotactic biopsy technique, the iMRI method has a higher positive diagnostic rate, though surgical trauma and complications have no significant difference.
Highlights
This study aimed to investigate the value of high field-strength intraoperative magnetic resonance imaging-guided stereotactic biopsy in the surgery of intracranial space-occupying lesions
When the dura is opened, the cerebrospinal fluid loss and biopsy needle implantation may lead to intraoperative brain shift and sampling deviation from the target site, which results in a reduced positive rate
Patients We retrospectively analyzed 87 patients with stereotactic brain biopsy performed at the Peking University International Hospital from March 2016 to August 2018
Summary
This study aimed to investigate the value of high field-strength intraoperative magnetic resonance imaging (iMRI)-guided stereotactic biopsy in the surgery of intracranial space-occupying lesions. The stereotactic guided biopsy has several advantages including patients unnecessary to receive general anesthesia. It leads to a short surgery time and an easy operation process, having an irreplaceable role. The traditional SBB technique takes advantage of stereotactic orientation and uses the stereotactic instrument to intracranially guide the biopsy needle. It (2019) 5:4 and effective, the indirect view of the framed stereotactic operation is limited in tracking the intracranial condition in real time. When the dura is opened, the cerebrospinal fluid loss and biopsy needle implantation may lead to intraoperative brain shift and sampling deviation from the target site, which results in a reduced positive rate
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