Objective: Reverse flow in the internal thoracic artery (ITA) after coronary bypass surgery due to an occlusion or severe stenosis of the subclavian artery is a rare situation. Symptoms can be recurrent and intermittent angina pectoris in the case of a coronary-subclavian steal (CSSS) or-in addition with cerebral symptoms-in the case of a coronary-subclavian-vertebral steal syndrome (CSVSS).
Method: We describe the cases of four patients with recurrent angina pectoris 5, 11, and 14 years as well as directly after coronary bypass surgery with LITA grafts to LAD.
Purpose: In the present study the optimization of radiation protection devices is achieved by minimizing the effective dose of the staff members since the stochastic radiation effects correlate to the effective dose.
Materials And Methods: Radiation exposure dosimetry was performed with TLD measurements using one Alderson Phantom in the patient position and a second phantom in the typical position of the personnel. Various types of protective clothing as well as fixed shields were considered in the calculations.
Background: The development of newer-generation endografts for the endovascular treatment of abdominal aortic aneurysms has resulted in considerable improvements in clinical performance. However, long-term outcome data are still scarce. To assess long-term clinical and radiographic outcomes after use of the Talent stent graft, a retrospective analysis was performed that was based on 165 patients treated with this endograft in Germany between October 1996 and December 1998.
View Article and Find Full Text PDFPurpose: Using an asymmetrical screen-film-grid combination with an ITC-VHC special grid (Kodak), the effect of the individual components was evaluated with regard to detail in the lungs and mediastinum as well as patient dose.
Materials And Methods: The system was compared with the Curix Ortho screen film system (Agfa L-film) using phantoms and 62 patients in an intensive care unit. The results were analysed by three independent observers.