Shaff M I
S Afr Med J. 1975 Apr 26;49(18):736-8.
Radiological investigation is warranted in the antenatal patient only if the findings are likely to influence future management. The major radiological signs of fetal death are gas in the fetus, overlapping of the cranial bones and Deuel's halo sign. Gas patterns in the portal and umbilical vessels are unique and pathognomonic. Deuel's halo sign would be found more commonly if the correct radiographic view was employed. Spalding's sign is of no value before 20 weeks or if the fetal head is subjected to pressure. Hyperflexion of the fetus more often indicates intra-uterine growth retardation than death in utero.
仅当检查结果可能影响未来管理时，才对产前患者进行放射学检查。胎儿死亡的主要放射学征象为胎儿体内气体、颅骨重叠和杜尔晕征。门静脉和脐血管内的气体形态独特且具有诊断意义。如果采用正确的放射学投照角度，杜尔晕征会更常见。斯波尔丁征在孕20周前或胎儿头部受压时无诊断价值。胎儿过度屈曲更多提示宫内生长受限而非宫内死亡。
