The Value Of Intraoperative Ultrasonography On Resec-tion And Radiofrequency Ablation Of Patients With Primary Hepatic Carcinoma

Objective: To explore the value of intraoperative ultrasonography (IOUS) on resection and radiofrequency ablation of patients with primary hepatic carcinoma(PHC). Methods: 60 lesions in 45 patients with PHC were detected by transabdominal ultrasonography(US) and IOUS, the results of them, as well as the pathological examination of the resected liver specimen were compared and followed up. The value of IOUS on resection and radiofrequency ablation of PHC were analyzed. Result: In the diagnosis of PHC, the sensitivity, specificity, diagnostic accuracy rate, positive and negative predictive value were 93.5%, 95.8%, 94.9%, 93.5%, 95.8% for IOUS; 74.2%, 83.3%, 80.0%, 74.2%, 83.3% for US, IOUS markedly higher than that of US(P<0.05). The overall accuracy rate of IOUS staging of PHC was 100%, higher than that of US which was 84.0% (p<0.05). The detecting rate of IOUS of tumors diameter 0.4cm-2.0cm was 94.74%, higher than that of US which was 63.15% (P<0.05). Under IOUS guidance, 8 lesions untouched with intraoperative palpation were resected, radiofrequency ablation was performed for destruction of 14 unresectable lesions, the short-term effective rate was 92.8%. IOUScontributed to changing the operative plan in 7 patients, correspond to 15.6%. Conclusion: IOUS can improve the diagnosis of PHC sensitivity, specificity and accuracy, reduce the rate of misdiagnosis and missed diagnosis, accurate positioning and phased, so that surgery can grasp the scope and boundaries more precise to increase the safety of operation, and IOUS be guided radiofrequency ablation of the PHC, raising the possibility of a cure and has a high practical value.