Application effect of open MR and real-time technique-guided biopsy of brain lesions / 中国介入影像与治疗学

ABSTRACT

Objective: To explore the application effect of 1.0T open MR and real-time technique-guided biopsy of brain lesions. Methods: Data of 112 patients with brain lesions who underwent 1.0T open MR real-time technique-guided puncture biopsy were analyzed retrospectively. The pathological results after surgical operation or follow-up results were taken as the final diagnostic criteria. The diagnostic accuracy, sensitivity, specificity, positive predictive value (PTV), negative predictive value (NPV) of puncture biopsy in diagnosis of cerebral lesions were calculated. Results: Among 112 lesions in 112 patients, the maximum diameter of lesions was 0.91-4.53 cm, with an average of (2.32±0.81)cm, which was ≤1.5 cm in 29 cases and >1.5 cm in 83 cases. All biopsy specimens were technically successfully obtained. And 108 procedures yielded definitive diagnoses. In 4 cases, small amount of intracranial hemorrhage was observed during the puncture, and no other serious complication was found, and the complication rate was 3.57% (4/112). The diagnostic accuracy, sensitivity, specificity, PTV and NPV were 96.43% (108/112), 96.34% (79/82), 96.67% (29/30), 98.75% (79/80) and 90.63% (29/32), respectively. No significant difference was detected between lesions >1.5 cm and those ≤1.5 cm (all P>0.05). Conclusion: 1.0T open MR real-time technique-guided biopsy of brain lesions is safe and feasible.