ABSTRACT
Objective To explore the diagnostic value of color Doppler ultrasound for fetal intrauterine distress(FIUD)in high-risk puerperae in plateau areas.Methods A total of 130 puerperae in plateau areas and 130 puerperae in plain areas were enrolled.According to presence or absence of FIUD in different areas,they were divided into the plateau distress group(47 cases),the plateau normal group(83 cases),the plain distress group(31 cases)and the plain normal group(99 cases).All cases underwent blood flow detection of middle cerebral artery(MCA)and umbilical artery(UA)before delivery,and cerebral-placental ratio(CPR)was calculated.The incidence of FIUD was compared between high-risk puerperae in plateau area and in plain area.Gestational age,birth weight,cesarean section rate and blood spectrum parameters of MCA and UA were compared between the four groups.The predictive value of color Doppler ultrasound parameters for FIUD was analyzed by receiver operating characteristic(ROC)curves.Results The incidence rates of FIUD and severe FIUD were higher in patients of plateau areas than those in plain areas(36.15%,13.85%vs.23.85%,4.62%,P＜0.05).Compared with the plateau distress group,gestational age and birth weight were increased in the plateau normal group and the plain distress group(P＜0.05).Compared with the plateau distress group,PI,RI,S/D and CPR of MCA were increased,while PI,RI and S/D of UA were decreased in the plateau normal group and the plain distress group(P＜0.05).Results of ROC curve analysis showed that overall performance advantage of S/D of UA was the most obvious in the diagnosis of FIUD in high-risk puerperae in plateau areas.The diagnostic sensitivity of RI of MCA was the highest,and the diagnostic specificity of CPR was the highest(P＜0.05).Conclusion Color Doppler ultrasound has good diagnostic value for FIUD in high-risk puerperae in plateau areas,which can be applied as an effective clinical screening means for FIUD.
ABSTRACT
Objective To discuss the application value of MSCT in the diagnosis of acute appendicitis.Methods 30 patients with appendicitis were enrolled as a research group,meanwhile 30 healthy adults without any diseases were as a control group.Some MSCT findings were observed or measured including diameter and position of appendix,fluid and gas density in appendix cavity, periappendicural fat density and peritoneal thickening,ascites and so on.Results The outside diameter of acute appendicitis appen-dix was (9.78±2.33)mm on average,whereas the diameter of normal adults appendix was (5.05±0.53)mm,exhibiting a signifi-cant difference (t=24.85,P <0.01).Rough periappendicural fat with increased density in 25 patients (83.33%)with the CT value of about -40 to 20 HU,exudation and peritoneal thickening around the appendix in 13 (43.33%),thickening and edematous appen-dix walls in 29 (96.67%),fecal stone in the appendix cavity with high density in 9(30.00%),the appendicitis in combination with intestinal obstruction in 1 (3.33%),and the appendicitis with peritoneal thickening in 80.00% and with peritoneal effusion in 23.33%were found in the study.Conclusion Full abdominal MSCT can help to the diagnosis of acute appendicitis,and some MSCT findings can be useful for the diagnosis including the appendix diameter≥6 mm,appendix cavity effusion,lumen stone,peripheral increased adipose density and peritoneal effusion.