Lu C C, Murakami J, Barloon T, Ell S R, Franken E A
Gastrointest Radiol. 1987;12(2):109-10. doi: 10.1007/BF01885116.
Indirect signs such as clover-leaf deformity, pseudodiverticulum formation, eccentric location of pyloric channel, and flattening of the fornix are of considerable value in the radiologic detection of an ulcer crater. We have found another indirect sign, base line tenting (BLT) to be very useful in the detection and diagnosis of duodenal ulcer disease. This is characterized by interruption of the base line of the bulb, with 2 associated perpendicular lines extending from the base and converging to a point in the duodenal bulb. After we observed this sign in various patients with peptic ulcer disease, a prospective investigation was performed involving 62 patients with duodenal ulcer disease over a period of 2 years. We found the BLT sign in 52 (83.8%). To date, no false-positive incidence has been identified. We concluded that BLT is a most valuable sign in the radiologic identification of duodenal ulcer disease.
诸如三叶草样畸形、假憩室形成、幽门管偏心定位以及穹窿变平之类的间接征象，在溃疡龛影的放射学检测中具有相当重要的价值。我们发现另一种间接征象，即基线帐篷征（BLT）在十二指肠溃疡病的检测和诊断中非常有用。其特征为球部基线中断，有两条相关的垂直线从基线延伸并在十二指肠球部汇聚于一点。在我们观察了各种消化性溃疡病患者出现此征象后，进行了一项前瞻性研究，在两年时间里纳入了62例十二指肠溃疡病患者。我们在52例（83.8%）患者中发现了BLT征。迄今为止，尚未发现假阳性病例。我们得出结论，BLT是十二指肠溃疡病放射学识别中最有价值的征象。
