Objective To investigate the clinical importance of discography and ct after discography (CTD) in the lumbar disc diseases, and make a comparison between CTD and magnetic resonance imaging (MRI).

目的分析腰椎间盘造影及间盘造影后计算机体层摄影术(CTD)在腰椎间盘疾患的诊治中的应用并与磁共振显像(MRI)进行比较。

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Conclusion ANA detected by double substrates immunofluorescence assay is an important method to identify CTD and non-CTD. Different fluorescence models have different significance.

结论ANA是区别CTD与非ctd风湿病的重要指标，不同的荧光模式有不同的意义。

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It involved installing satellite-linked conductivity-temperature-depth (CTD) loggers on three white whales (Delphinapterus leucas).

BBC: Whales probe Arctic fjord's secrets

When the explorer drills the ice to make a physical measurement of thickness, he will use the hole to lower a 4kg conductivity-temperature device (CTD) into the ocean below.

BBC: Arctic team targets key ice data