The logic blocks of Field Programmable Gate Array (FPGA) basic unit are mainly composed of Look-Up-Tables (LUTs). The traditional LUTs use the static random access memory (SRAM), which causes FPGA reach the limitation in term of the density, speed, and configuration overhead. In this
paper, a novel nanometer memristor-based LUT (NMLUT) is composed of memristors, MOS field effect transistors, decoders, resistors. A three-input NMLUT and a four-input NMLUT circuits are investigated. Moreover, an adder is used to verify the practicality of NMLUT circuit. The proposed NMLUT
circuit can implement some combinational logic functions through specific configuration and it is better in data transmission and data storage than the traditional LUT. Since NMLUT circuit is compatible with the mainstream circuit in the FPGA, it can effectively solve the limitations of the
field FPGA. The correctness of the results is verified in PSPICE software.
Objective: The purpose of this study was to explore the effect of endovascular therapy on posterior communicating artery-infundibular dilatation aneurysms. Methods: A total of 15 patients with ruptured aneurysms caused by posterior communicating
artery-infundibular dilatation who were treated in our neurosurgical center from January 2015 to December 2018were included in this study. They were performed with bilateral internal carotid angiography and vertebral angiography and treated with endovascular method. The modified Rankin Scale
(mRS) was used for clinical follow-up for 18 months. Results: There were 10 patients in the posterior communicating artery-infundibular dilatation aneurysms with non-fetal posterior cerebral artery. Among them, 8 patients were treated with coil-alone embolization.
Immediate imaging showed infundibular dilation residual in 6 cases and no contrast filling in either infundibular dilation or aneurysm in 2 case. Another 2 were treated with stent-assisted coiling embolization, and immediate imaging showed no contrast filling. Of the 5 patients in posterior
communicating artery-infundibular dilatation aneurysms with fetal posterior cerebral artery, 4 were only coiled in the aneurysm sack with contrast filling in infundibular cones, and 2 were treated with stent assisted coiling. Among the 10 patients with non-fetal posterior cerebral artery,
3 showed recurrence, 4 showed stable images, 2 were also stable with no contrast filling in infundibular dilation or aneurysm and 1 was lost to follow-up. Among the 5 patients with fetal posterior cerebral artery, 1 showed stable images, 3 showed recurrence and 1 was lost to follow-up.
Conclusions: For posterior communicating artery-infundibular dilatation aneurysms with non-fetal posterior cerebral artery, stent-assisted coiling of aneurysm embolization combined with occlusion of cones is effective to prevent or reduce recurrence.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.