1. Utility of novel 3-dimensional stereoscopic vision system during endoscopic sinonasal and skull base surgery.

IRB# 012010-001

Principal Investigator: Pete S. Batra, MD, FACS

This is a prospective study evaluating the use of a novel 3D endoscopic system to improve outcomes in advanced endoscopic procedures. UTSW is one of the few centers nationally to have significant experience with this technology.

2. Advanced applications of intraoperative volume CT scanner for endoscopic sinonasal and skull base surgery.

IRB#: 072009-010

Principal Investigator: Pete S. Batra, MD, FACS

This is a prospective clinical trial that is assessing the use of intraoperative CT for sinonasal and skull base surgery. The study will help refine the indications for Intraop CT and represents one of the 1^st national prospective trials with this technology.

3. Outcomes of treatment for vestibular schwannoma.

IRB# 032008-026

Principal Investigator: Walter Kutz, MD

This is a retrospective review of the extensive experience accrued at UTSW in treating vestibular schwannomas. All three treatment modalities including observation, radiosurgery, and surgery are included in the analysis.

4. Treatment outcomes in patients with glomus jugulare tumors.

IRB# 102008-084

Principal Investigator: Walter Kutz, MD

This is a retrospective analysis of the UTSW experience in treating glomus jugulare tumors. The data on partial resection followed by radiosurgery was presented at the annual North American Skull Base Society Conference in New Orleans in October 2009.