The surface morphological changes produced by Nd:YAG pulsed laser ablation of metal Al and semiconductor Si were carefully examined and analyzed by using scanning electron microscope. The formation mechanism of the dr...The surface morphological changes produced by Nd:YAG pulsed laser ablation of metal Al and semiconductor Si were carefully examined and analyzed by using scanning electron microscope. The formation mechanism of the droplets was discussed, and the reasons for formation of the microcracks on the laser irradiated area of the target surface were analyzed by calculating the thermal stress, the vapor pressure and the shock pressure induced by the laser supported detonation.展开更多
Complex intemal carotid artery （ICA） aneurysms include intracavemous, paraclinoid large/giant, dissecting andblood-blister aneurysms. Proximal parent artery occlusion （PAO） and trapping are long-practiced safe and...Complex intemal carotid artery （ICA） aneurysms include intracavemous, paraclinoid large/giant, dissecting andblood-blister aneurysms. Proximal parent artery occlusion （PAO） and trapping are long-practiced safe and effective option for these complex aneurysms.1 Trapping refers to both proximal and distal occlusion of parent artery including aneurysms, which is considered more reliable than proximal PAO due to without reverse flow. We hereby describe a rare case of subarachnoid hemorrhage （SAH） after trapping ICA to treat complex ICA aneurysms. The report was approved by the Ethics Committee of our institute and written informed consent was obtained from the patient.展开更多
文摘The surface morphological changes produced by Nd:YAG pulsed laser ablation of metal Al and semiconductor Si were carefully examined and analyzed by using scanning electron microscope. The formation mechanism of the droplets was discussed, and the reasons for formation of the microcracks on the laser irradiated area of the target surface were analyzed by calculating the thermal stress, the vapor pressure and the shock pressure induced by the laser supported detonation.
基金This study was supported by grants from the National Natural Science Foundation of China （No. 30901557, No. 81220108007 and No. 8117 1079）, High Level Health Technique Talent Training Plan of Beijing Health System （No. 2011-3-036） and Disciplines Backbone ofBeijing Tiantan Hospital （No. DLB2011-09）.
文摘Complex intemal carotid artery （ICA） aneurysms include intracavemous, paraclinoid large/giant, dissecting andblood-blister aneurysms. Proximal parent artery occlusion （PAO） and trapping are long-practiced safe and effective option for these complex aneurysms.1 Trapping refers to both proximal and distal occlusion of parent artery including aneurysms, which is considered more reliable than proximal PAO due to without reverse flow. We hereby describe a rare case of subarachnoid hemorrhage （SAH） after trapping ICA to treat complex ICA aneurysms. The report was approved by the Ethics Committee of our institute and written informed consent was obtained from the patient.
