[Anatomical Repair of Total Arch Replacement for Stanford Type B Subacute Aortic Dissection with Aberrant Right Subclavian Artery:Report of a Case].

A 45-year-old man complaining of chest and back pain due to acute aortic dissection was referred to our department. A contrast enhanced computed tomography( CT) scan showed Stanford type B aortic dissection with Kommerell diverticulum and aberrant right subclavian artery. The patient underwent antihypertensive treatment for one month.

Treatment of celiac artery rupture with a hybrid procedure involving aortic stent grafting and open surgery in a patient with neurofibromatosis type 1.

Neurofibromatosis type 1 is associated with vascular fragility, and vascular disease is the second leading cause of death in these patients. A 42-year-old woman with neurofibromatosis type 1 was transferred to our hospital owing to shock. A computed tomography scan revealed a ruptured celiac artery aneurysm, which had expanded from 14 to 26 mm in 1 day.

Successful Aortic Remodeling Through the Candy-Plug Technique for Chronic Type B Aortic Dissection.

Purpose: To describe the efficiency of the candy-plug technique using an Excluder aortic extender and obtain optimal aortic remodeling.

Case: A 46-year-old male patient had a history of acute type B aortic dissection and progressive dilation of the descending aorta (53 mm diameter) with a patent false lumen. He was treated with the candy-plug technique, using an Excluder aortic extender of 32-45 mm was placed and a 16-mm Amplatzer Vascular Plug II.

High transmission recovery of slow light in a photonic crystal waveguide using a hetero groupvelocity waveguide.

High transmission of slow-light in a photonic crystal (PC) waveguide (WG) using a hetero group-velocity (Ht-V(g)) PC-WG was proposed and experimentally investigated. The Ht-V(g) WG, which comprises a low-group-velocity (L-V(g)) PC-WG section between two identical high-group- velocity (H-V(g)) PC-WGs, is designed to decrease the impedance mismatch of the L-V(g) PC-WG. The increase in transmittance of a propagating pulse was confirmed in the Ht-V(g) PC-WG even in the vicinity of the band-gap, whereas the homogeneous PC-WG showed a gradual decrease in transmittance with the pulse wavelength approaching the band-gap.

Broadband waveguide intersection with low crosstalk in two-dimensional photonic crystal circuits by using topology optimization.

Topology optimization has been used to design intersections in two-dimensional photonic crystal slab waveguides. We have experimentally confirmed that the optimized intersection displays high-transmittance with low-crosstalk for the straightforward beam-propagation line.