نتایج جستجو برای: margin of safety
تعداد نتایج: 21186316 فیلتر نتایج به سال:
OBJECTIVE To investigate the clinical usefulness of intraoral sonography-assisted resection for securing adequate deep resection margins in T1-2 tongue cancers. STUDY DESIGN Prospective clinical trial. MATERIALS AND METHODS Twenty consecutive patients with clinical T1-2 tongue cancers were enrolled and their lesions were removed by intraoral sonography-assisted resection. We then retrospect...
BACKGROUND Implantable cardioverter-defibrillator system efficacy is tested at implant by induction of ventricular fibrillation (VF). Defibrillation safety margin can be assessed without VF induction using upper limit of vulnerability methods, but these methods have required manual determination of T-wave timing. METHODS AND RESULTS To test the feasibility of an inductionless system of implan...
this paper studies the effects of the structural variables of the iranian industries sector on the welfare cost using to the structure-conduct-performance (scp) theory. in other words, we investigate the role of structural components and their effects on the size of the welfare cost in iran's industry sector. we have used the leibenstein's model to calculate the deadweight loss and then the pan...
Radiofrequency ablation has attracted increasing attention as a minimally invasive method of treating hepatic malignancies.1 Image guidance can play an important role in enhancing the safety and effectiveness of ablative therapy. Imaging should ensure that ablation is precise, enabling complete coagulation of tumor tissue within a safety margin. The applicator should be positioned and energy de...
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