目的分析MRI的乳腺影像报告和数据系统(breast imaging reporting and data system,BI-RADS-MRI)4类病例乳腺癌阳性预测值(positive predictive value,PPV),初步探讨其亚分类。方法回顾性总结BI-RADS-MRI4类286例患者的MRI资料,以...目的分析MRI的乳腺影像报告和数据系统(breast imaging reporting and data system,BI-RADS-MRI)4类病例乳腺癌阳性预测值(positive predictive value,PPV),初步探讨其亚分类。方法回顾性总结BI-RADS-MRI4类286例患者的MRI资料,以病理及随访结果为金标准,统计该类病例活检率及PPV,并用Logistic回归法分析各征象的PPV和优势比(OR)。结果 BI-RADS-MRI 4类活检率为75.5%,PPV为30.6%。不规则型肿块呈不均匀强化,平台型或流出型曲线的PPV为0.56;毛刺肿块,强化均匀的PPV为0.45;圆形/椭圆形肿块,边缘光滑,强化均匀的PPV为0.11。病灶呈导管/段样分布、不均匀强化的PPV为0.35;病灶呈局灶/区域/广泛分布、强化均匀的PPV为0.22。结论 PPV能初步对BI-RADS-MRI 4类行亚分类,但仍需进一步研究。展开更多
Two new species of Mukariini,Tiaobeinia coarseata sp.nov.from Shaanxi and Tiaobeinia yuani sp.nov.from Gansu,are described.Detailed morphological descriptions and illustrations of these new species are given.A checkli...Two new species of Mukariini,Tiaobeinia coarseata sp.nov.from Shaanxi and Tiaobeinia yuani sp.nov.from Gansu,are described.Detailed morphological descriptions and illustrations of these new species are given.A checklist of all known species in this tribe from China is provided and a key is proposed for all species of Tiaobeinia.展开更多
Species of Pamphiliidae in the Himalaya region are quite rare.Only seven species belonging to three genera of this family have been recorded.Two new species of Pamphiliidae from Linzhi,Xizang of China are described:Ce...Species of Pamphiliidae in the Himalaya region are quite rare.Only seven species belonging to three genera of this family have been recorded.Two new species of Pamphiliidae from Linzhi,Xizang of China are described:Cephalcia xizangica Wei sp.nov.and Onycholyda nigrothorax Wei sp.nov.Cephalcia is recorded from the Himalaya region for the first time.A key to currently known species of Pamphiliidae from Himalayas is provided.展开更多
One new species Bryophaenocladius alpinus Deng&Zhang sp.nov.is described and illustrated based on adult males collected from China.The adult males can be distinguished by the third palpomere with a digitiform proj...One new species Bryophaenocladius alpinus Deng&Zhang sp.nov.is described and illustrated based on adult males collected from China.The adult males can be distinguished by the third palpomere with a digitiform projection but without sensilla clavata,anal point broad triangular,inferior volsella sub-rectangular-shaped and covered with setae,gonostylus broad triangular,and crista dorsalis welldeveloped.展开更多
A peculiar sawfly genus from middle Asia,Cacosyndya Kirby,1883 and the type species Cacosyndya dimorpha(Freymuth,1870)are redescribed and illustrated.The systematic position of this genus in Tenthredinidae is discusse...A peculiar sawfly genus from middle Asia,Cacosyndya Kirby,1883 and the type species Cacosyndya dimorpha(Freymuth,1870)are redescribed and illustrated.The systematic position of this genus in Tenthredinidae is discussed.The females in the genus are apterous,the only known apterous Symphytan,but the male is normally winged.Cacosyndya is not a member of Fenusinae or Heterarthrinae,but a member of Phymatocerini of Blennocampinae,Tenthredinidae as shown by the structure of the antenna,wing venation and body structure.The relationship between Cacosyndya and members of Phymatocerini is briefly discussed.展开更多
基金supported by the National Natural Science Foundation of China(3207047932270497)National key Research and Development Program"Intergovernmental Cooperation on International Science and Technology Innovation"Special Project(2022YFE0115200)。
文摘Two new species of Mukariini,Tiaobeinia coarseata sp.nov.from Shaanxi and Tiaobeinia yuani sp.nov.from Gansu,are described.Detailed morphological descriptions and illustrations of these new species are given.A checklist of all known species in this tribe from China is provided and a key is proposed for all species of Tiaobeinia.
基金partly supported by the National Natural Science Foundation of China(323705003197044731672344)。
文摘Species of Pamphiliidae in the Himalaya region are quite rare.Only seven species belonging to three genera of this family have been recorded.Two new species of Pamphiliidae from Linzhi,Xizang of China are described:Cephalcia xizangica Wei sp.nov.and Onycholyda nigrothorax Wei sp.nov.Cephalcia is recorded from the Himalaya region for the first time.A key to currently known species of Pamphiliidae from Himalayas is provided.
基金the financial support from Science and Technology Commission of Shanghai Municipality(1905050190019DZ1204504)。
文摘One new species Bryophaenocladius alpinus Deng&Zhang sp.nov.is described and illustrated based on adult males collected from China.The adult males can be distinguished by the third palpomere with a digitiform projection but without sensilla clavata,anal point broad triangular,inferior volsella sub-rectangular-shaped and covered with setae,gonostylus broad triangular,and crista dorsalis welldeveloped.
基金supported by the National Natural Science Foundation of China(3237050031172142)。
文摘A peculiar sawfly genus from middle Asia,Cacosyndya Kirby,1883 and the type species Cacosyndya dimorpha(Freymuth,1870)are redescribed and illustrated.The systematic position of this genus in Tenthredinidae is discussed.The females in the genus are apterous,the only known apterous Symphytan,but the male is normally winged.Cacosyndya is not a member of Fenusinae or Heterarthrinae,but a member of Phymatocerini of Blennocampinae,Tenthredinidae as shown by the structure of the antenna,wing venation and body structure.The relationship between Cacosyndya and members of Phymatocerini is briefly discussed.
