目的 探讨小FOV扫描方法在CT引导下经皮穿刺活检肺小结节(长径≤20 mm)中的应用价值。方法 对104例肺小结节患者分别采用小FOV( n =38,A组)和常规FOV( n =66,B组)行CT引导下经皮穿刺活检,记录病变沿针道距胸膜距离、肺内调整进针次数、...目的 探讨小FOV扫描方法在CT引导下经皮穿刺活检肺小结节(长径≤20 mm)中的应用价值。方法 对104例肺小结节患者分别采用小FOV( n =38,A组)和常规FOV( n =66,B组)行CT引导下经皮穿刺活检,记录病变沿针道距胸膜距离、肺内调整进针次数、手术时间,进针胸膜角等,比较2组肺内出血、气胸的发生率。结果 A组肺内出血总体发生率31.58%(12/38),≥2级肺内出血发生率2.63%(1/38),B组分别为66.67%(44/66)、22.73%(15/66);A组出血发生率明显低于B组(χ 2 =14.172, P =0.001)。2组肺气肿、病变沿针道距胸膜的距离、手术时间、肺内调整进针次数差异均无统计学意义( P均>0.05)。结论 采用小FOV扫描方法行肺小结节CT引导下经皮穿刺活检可明显降低肺内出血、尤其是≥2级肺内出血发生率。展开更多
[Objective] The experiment explored of resistance of different Medicago sativa through synthetic variations of all physiological indexes and the correlation analysis between physiological activity and damage degree af...[Objective] The experiment explored of resistance of different Medicago sativa through synthetic variations of all physiological indexes and the correlation analysis between physiological activity and damage degree after thrips damage. [Method] According to studying physiological activity (POD activity, SOD activity, PPO activity, PAL activity, MDA content and free proline content) of alfalfa in alfalfa resistance to different number of thrips, the correlation between physiological activity and resistance was investigated. [Result] It was shown that there were negative correlations among POD, SOD, PPO, PAL, MDA, free praline and the number of thrips, and there were negative correlations among POD, SOD, PPO, PAL, MDA, free praline and CAT. The content changes of POD,SOD,PPO,CAT,MDA and free proline in high resistant alfalfa were slow and PAL was quick and the activities of PPO,PAL,CAT were high, and the activities of POD、SOD were low. [Conclusion] The research provided theoretical basis and materials for identifying resistance varieties of alfalfa to thrip.展开更多
文摘目的 探讨小FOV扫描方法在CT引导下经皮穿刺活检肺小结节(长径≤20 mm)中的应用价值。方法 对104例肺小结节患者分别采用小FOV( n =38,A组)和常规FOV( n =66,B组)行CT引导下经皮穿刺活检,记录病变沿针道距胸膜距离、肺内调整进针次数、手术时间,进针胸膜角等,比较2组肺内出血、气胸的发生率。结果 A组肺内出血总体发生率31.58%(12/38),≥2级肺内出血发生率2.63%(1/38),B组分别为66.67%(44/66)、22.73%(15/66);A组出血发生率明显低于B组(χ 2 =14.172, P =0.001)。2组肺气肿、病变沿针道距胸膜的距离、手术时间、肺内调整进针次数差异均无统计学意义( P均>0.05)。结论 采用小FOV扫描方法行肺小结节CT引导下经皮穿刺活检可明显降低肺内出血、尤其是≥2级肺内出血发生率。
基金Supported by the Ministry of Science and Technology of the People’s Republic of China(2006BAD10A19-8)~~
文摘[Objective] The experiment explored of resistance of different Medicago sativa through synthetic variations of all physiological indexes and the correlation analysis between physiological activity and damage degree after thrips damage. [Method] According to studying physiological activity (POD activity, SOD activity, PPO activity, PAL activity, MDA content and free proline content) of alfalfa in alfalfa resistance to different number of thrips, the correlation between physiological activity and resistance was investigated. [Result] It was shown that there were negative correlations among POD, SOD, PPO, PAL, MDA, free praline and the number of thrips, and there were negative correlations among POD, SOD, PPO, PAL, MDA, free praline and CAT. The content changes of POD,SOD,PPO,CAT,MDA and free proline in high resistant alfalfa were slow and PAL was quick and the activities of PPO,PAL,CAT were high, and the activities of POD、SOD were low. [Conclusion] The research provided theoretical basis and materials for identifying resistance varieties of alfalfa to thrip.
