医生使用一种叫做药物洗提的管状物日益增加，这种类型的管状物有药物在里面，随着时间的推移慢慢地释放。

Increasingly doctors use what is called a drug-eluting stent. This kind has medicine on it that is released slowly over time.

让实验更尴尬的是，音乐家们还不得不躺在扫描仪小小的管状物里演奏。

And as if that didn't make this experiment awkward enough, musicians then had to play lying down in the scanner's tight little tube.