Articles: surgery.
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Computed tomography (CT)-guided transbronchial biopsy (TBB) using an ultrathin bronchoscope with simulation by virtual bronchoscopy (VB) is effective for diagnosing small peripheral pulmonary lesions. However, we occasionally lose the proper bronchi to the lesion when a bronchoscope is inserted into peripheral bronchi with severe rotation. To overcome this problem, the virtual bronchoscopic navigation system that can display real-time VB images during TBB procedures in comparison with actual bronchi has been developed. ⋯ Compared to simulation method, diagnostic sensitivity was higher in the navigation method, but the difference was not significant. However, the time to the first biopsy and total examination time were significantly shorter in the navigation method than in the simulation method (p<0.05). In summary, the virtual bronchoscopic navigation system was safely used, effective for diagnosing small peripheral pulmonary lesions, and useful for shortening the examination time of CT-guided TBB using an ultrathin bronchoscope.
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Facial Plast Surg Clin North Am · May 2007
Understanding physician responsibilities and limitations for drug and device off-label use.
Facial plastic surgery, by its nature, is a field that constantly is seeking new and innovative ways of treating patients. This innovation often involves novel techniques and tools. ⋯ Physicians are able to use drugs and devices off-label but are required to follow certain guidelines. This article describes the physician's legal responsibilities and limitations in off-label drug or device use.
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During the last decade navigation techniques in pelvic and acetabular surgery have been described. Nowadays, available techniques include CT-based navigation, 2D C-arm navigation and 3D C-arm navigation. The main indication is the navigated percutaneous SI screw fixation, but acetabular screw fixations are also reported. In this article, based upon a literature review and our own clinical experiences, the indications for and limitations of navigated techniques in pelvic and acetabular surgery are described.
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Case Reports Multicenter Study
Preoperative planning in pelvic and acetabular surgery: the value of advanced computerised planning modules.
An experimental computer program for virtual operation of fractured pelvis and acetabulum based on real data of the fracture is presented. The program consists of two closely integrated tools, the 3D viewing tools and the surgeon simulation tools. Using 3D viewing tools the virtual model of a fractured pelvis is built. ⋯ The international study is still in progress. One case is presented demonstrating all the possibilities of the virtual planning and surgery. The presented computer program is an easily usable application which brings significant value and new opportunities in clinical practice (preoperative planning), teaching and research.
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The aim of this study was to test a new strategy for radioguided management of malignant or suspicious nonpalpable breast lesions, with a combination of radioguided occult lesion localization (ROLL), sentinel lymph node (SLN) mapping, and, if necessary, immediate local surgery and SLN biopsy with a single injection of (99m)Tc-labeled dextran for the whole procedure. ⋯ ROLL and SLN biopsy are emerging procedures that can be used simultaneously. They permit exact breast lesion excision, immediate local breast surgery, and intraoperative SLN biopsy in a single procedure. The combination of radioguided nonpalpable lesion localization and SLN biopsy is a suitable alternative to working up subclinical imaging-detected breast carcinomas.