BACKGROUND Odontogenic infection is one of the common infectious diseases in oral and maxillofacial head and neck regions.Clinically,if early odontogenic infections such as acute periapical periodontitis,alveolar absc...BACKGROUND Odontogenic infection is one of the common infectious diseases in oral and maxillofacial head and neck regions.Clinically,if early odontogenic infections such as acute periapical periodontitis,alveolar abscess,and pericoronitis of wisdom teeth are not treated timely,effectively and correctly,the infected tissue may spread up to the skull and brain,down to the thoracic cavity,abdominal cavity and other areas through the natural potential fascial space in the oral and maxillofacial head and neck.Severe multi-space infections are formed and can eventually lead to life-threatening complications(LTCs),such as intracranial infection,pleural effusion,empyema,sepsis and even death.CASE SUMMARY We report a rare case of death in a 41-year-old man with severe odontogenic multi-space infections in the oral and maxillofacial head and neck regions.One week before admission,due to pain in the right lower posterior teeth,the patient placed a cigarette butt dipped in the pesticide"Miehailin"into the"dental cavity"to relieve the pain.Within a week,the infection gradually spread bilaterally to the floor of the mouth,submandibular space,neck,chest,waist,back,temporal and other areas.The patient had difficulty breathing,swallowing and eating,and was transferred to our hospital as an emergency admission.Following admission,oral and maxillofacial surgeons immediately organized consultations with doctors in otolaryngology,thoracic surgery,general surgery,hematology,anesthesia and the intensive care unit to assist with treatment.The patient was treated with the highest level of antibiotics(vancomycin)and extensive abscess incision and drainage in the oral,maxillofacial,head and neck,chest and back regions.Unfortunately,the patient died of septic shock and multiple organ failure on the third day after admission.CONCLUSION Odontogenic infection can cause serious multi-space infections in the oral and maxillofacial head and neck regions,which can result in multiple LTCs.The management and treatment of LTCs such as multi-space infections should be multidisciplinary led by oral and maxillofacial surgeons.展开更多
为了提高多视图深度估计结果精度,提出一种基于自适应空间特征增强的多视图深度估计算法。设计了由改进后的特征金字塔网络(feature pyramid network,FPN)和自适应空间特征增强(adaptive space feature enhancement,ASFE)组成的多尺度...为了提高多视图深度估计结果精度,提出一种基于自适应空间特征增强的多视图深度估计算法。设计了由改进后的特征金字塔网络(feature pyramid network,FPN)和自适应空间特征增强(adaptive space feature enhancement,ASFE)组成的多尺度特征提取模块,获取到具有全局上下文信息和位置信息的多尺度特征图像。通过残差学习网络对深度图进行优化,防止多次卷积操作出现重建边缘模糊的问题。通过分类的思想构建focal loss函数增强网络模型的判断能力。由实验结果可知,该算法在DTU(technical university of denmark)数据集上和CasMVSNet(Cascade MVSNet)算法相比,在整体精度误差、运行时间、显存资源占用上分别降低了14.08%、72.15%、4.62%。在Tanks and Temples数据集整体评价指标Mean上该模型优于其他算法,证明提出的基于自适应空间特征增强的多视图深度估计算法的有效性。展开更多
文摘BACKGROUND Odontogenic infection is one of the common infectious diseases in oral and maxillofacial head and neck regions.Clinically,if early odontogenic infections such as acute periapical periodontitis,alveolar abscess,and pericoronitis of wisdom teeth are not treated timely,effectively and correctly,the infected tissue may spread up to the skull and brain,down to the thoracic cavity,abdominal cavity and other areas through the natural potential fascial space in the oral and maxillofacial head and neck.Severe multi-space infections are formed and can eventually lead to life-threatening complications(LTCs),such as intracranial infection,pleural effusion,empyema,sepsis and even death.CASE SUMMARY We report a rare case of death in a 41-year-old man with severe odontogenic multi-space infections in the oral and maxillofacial head and neck regions.One week before admission,due to pain in the right lower posterior teeth,the patient placed a cigarette butt dipped in the pesticide"Miehailin"into the"dental cavity"to relieve the pain.Within a week,the infection gradually spread bilaterally to the floor of the mouth,submandibular space,neck,chest,waist,back,temporal and other areas.The patient had difficulty breathing,swallowing and eating,and was transferred to our hospital as an emergency admission.Following admission,oral and maxillofacial surgeons immediately organized consultations with doctors in otolaryngology,thoracic surgery,general surgery,hematology,anesthesia and the intensive care unit to assist with treatment.The patient was treated with the highest level of antibiotics(vancomycin)and extensive abscess incision and drainage in the oral,maxillofacial,head and neck,chest and back regions.Unfortunately,the patient died of septic shock and multiple organ failure on the third day after admission.CONCLUSION Odontogenic infection can cause serious multi-space infections in the oral and maxillofacial head and neck regions,which can result in multiple LTCs.The management and treatment of LTCs such as multi-space infections should be multidisciplinary led by oral and maxillofacial surgeons.
文摘为了提高多视图深度估计结果精度,提出一种基于自适应空间特征增强的多视图深度估计算法。设计了由改进后的特征金字塔网络(feature pyramid network,FPN)和自适应空间特征增强(adaptive space feature enhancement,ASFE)组成的多尺度特征提取模块,获取到具有全局上下文信息和位置信息的多尺度特征图像。通过残差学习网络对深度图进行优化,防止多次卷积操作出现重建边缘模糊的问题。通过分类的思想构建focal loss函数增强网络模型的判断能力。由实验结果可知,该算法在DTU(technical university of denmark)数据集上和CasMVSNet(Cascade MVSNet)算法相比,在整体精度误差、运行时间、显存资源占用上分别降低了14.08%、72.15%、4.62%。在Tanks and Temples数据集整体评价指标Mean上该模型优于其他算法,证明提出的基于自适应空间特征增强的多视图深度估计算法的有效性。
