Dissertation > Medicine, health > Oncology > Nervous system tumors

Intraoperative Ultrasound on the Evaluation of Residual Tumor after Resection of Supratentorial Gliomas

Author LiuJing
Tutor YaoLanHui
School Xinjiang Medical University
Course Medical Imaging and Nuclear Medicine
Keywords Intraoperative ultrasound Glioma Residual tumor
CLC R739.4
Type Master's thesis
Year 2009
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Objective to evaluate the intraoperative ultrasound to judgment on screen glioma postoperative residual diagnostic value. Methods choose special intraoperative probe, the proposed line 22 cases cancer radical mastectomy patients with glioma conventional microsurgery end make ultrasound, and determine whether have residual. With pathological results as the gold standard and by contrast, the establishment of ROC curve analysis, intraoperative ultrasound on screen glioma postoperative residual diagnostic value. The results of 22 patients with a total of 80 residual lesions, intraoperative ultrasound in the diagnosis of glioma after resection of the residual tumor were 88% and 63.3%, respectively) for, positive predictive value was 80%, the negative predictive value was 76%, the Kappa value is 0.531. Through the ROC curve, determine the intraoperative ultrasound diagnosis residual tumor best critical point 2.5 3.0 mm, calculates the area under the ROC curves for 0.788. Conclusion the on screen glioma resection, intraoperative ultrasound for detection of residual tumor with high specificity, so as to achieve complete radical resection for clinical supratentorial gliomas to provide important reference value.

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