Current research interests center around the areas of peripheral and neurological interventional radiology. Most of the research for the past year has been in the clinical arena. For peripheral interventional radiology, current interest has centered around pulmonary angiography with the use of low osmolar contrast material. This includes complications encountered when compared to ionic media, as well as prospective evaluation of the response of the pulmonary system relative to pressures following injection of low osmolar contrast material. Research areas have also included new devices including those for revascularization as well as biopsy techniques. Research interests for neurological interventional radiology include the investigation of new devices. This includes both the clinical area and also laboratory work particularly in the area of aneurysm occlusion. This mostly involves development of new catheter designs but also involves the investigation of forms of alternative embolic agents.