Techniques for precise thoracic endograft placement

Exact Parameterization for Precise Foot Placement

In many constrained environments, precise control of foot placement during character locomotion is crucial to avoid collisions and to ensure a natural locomotion. In this paper, we present a new exact parameterization technique based on foot steps that efficiently blends animations in a linear representation to guarantee exact control of foot placement. By concatenating these parameterized step...

Unexpected thoracic endograft infection following a colorectal procedure

Infection of endovascular stent-grafts is a severe complication, but not often reported. We report herein a case of a 61-year-old man presented with pneumonia-like symptoms 24 days after receiving laparoscopic resection of stage 1 sigmoid cancer. Acute pneumonitis and cancer recurrence were excluded on Ga-67 citrate imaging. An infected endovascular graft of the aortic arch, which had been plac...

Surgical treatment of aortobronchial fistula after thoracic endograft failure

Endovascular stent grafting has been recently considered as a less invasive alternative to either medical therapy or open surgical treatment for many patients with descending thoracic aortic disease. Late complications are rarely described in literature. Herein, we described the occurrence of an aorto-bronchial fistula and a retro-A dissection in a 73-year-old man after stent-grafting for a pen...

Hardware Techniques for Data Placement

Precise semiconductor nanowire placement through dielectrophoresis.

We demonstrate the ability to precisely control the alignment and placement of large numbers of InAs nanowires from solution onto very narrow, prepatterned electrodes using dielectrophoresis. An understanding of dielectrophoretic behavior associated with such electrode geometries is essential to development of approaches for assembly of intricate nanowire systems. The influence of signal freque...