Journal of neuro-oncology
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Journal of neuro-oncology · May 2003
Comparative StudyEvaluation of brain tumor metabolism with [11C]choline PET and 1H-MRS.
The signal of choline containing compounds (Cho) in proton magnetic resonance spectroscopy (1H-MRS) is elevated in brain tumors. [11C]choline uptake as assessed using positron emission tomography (PET) has also been suggested to be higher in brain tumors than in the normal brain. We examined whether quantitative analysis of choline accumulation and content using these two novel techniques would be helpful in non-invasive, preoperative evaluation of suspected brain tumors and tumor malignancy grade. ⋯ Both 1H-MRS and [11C]choline PET can be used to estimate proliferative activity of human brain tumors. These methods seem to be helpful in differential diagnosis between lymphomas, non-tumorous lesions and gliomas but are not superior to histopathological methods in estimation of tumor malignancy grade.
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Journal of neuro-oncology · May 2003
Postoperative management of patients after stereotactic biopsy: results of a survey of the AANS/CNS section on tumors and a single institution study.
As little consensus exists on the postoperative care of patients undergoing stereotactic biopsy, we sought to establish a new algorithm for their postoperative management. First, we surveyed active members of the AANS/CNS Section on Tumors to determine national practice patterns for patients after stereotactic biopsy. Second, we retrospectively reviewed 84 consecutive stereotactic biopsy procedures at our institution to assess the potential benefit of routine computed tomography (CT) scanning and intensive care unit (ICU) monitoring. ⋯ We confirmed these results in the prospective study of 54 patients undergoing stereotactic biopsy without routine postoperative CT scanning or ICU monitoring. In contrast with national practice patterns reported, we recommend that CT scanning and ICU monitoring be reserved for patients who have intraoperative hemorrhage or new deficits after surgery. All other patients can be monitored for 2 h in the recovery room and transferred to a regular hospital room without a postoperative CT scan.