Diagnostic value and manifestations of transabdominal bowel ultrasound for Crohn disease
ZHENG Kai1,HUANG Min1,ZHENG Jia-ju2,LU Zhong-kai2,GU Jun1,GUO Jian-feng1,CAO Qiu-yue1(1.Department of Ultrasound,2.Department of Gastroenterology,Affiliated Suzhou Hospital,Nanjing Medical University,Suzhou 215001,China)
Objective To investigate the diagnostic value of transabdominal bowel ultrasound for Crohn disease(CD).Methods Thirty-three patients with CD were recruited for examinations of transabdominal bowel ultrasound.The ultrasonic manifestations were analyzed and compared with the findings of gastrointestinal endoscopy and(or) all gastroenterography.Blood flow in bowel wall was classified and C-reactive protein was detected.Results The most apparent manifestation was the thickening of affected bowel wall in various degrees."Target sign","Sandiwich sign" cloud be observed.Most of the echogenic layers in thickened bowel wall were disappeared,tabulate or tubercled mucosal membrane could be observed.Ulcers and abnormal peristalsis were also observed in affected bowel wall.Abdominal complications of CD included strictures,masses,abscesses,fistulas and perforations.Besides,"creeping fat sign" might be found peri-intestine.For all patients,the affected domains were classified as ileum-colon(16/33,48.48%),small intestine(11/33,33.33%),colon(5/33,15.15%) and stomach-ileum(1/33,3.03%).The intensity of power Doppler signals in affected bowel wall had a good correlation with the C-reactive protein(r=0.59,P0.01),while their diagnostic consistency was medium(Kappa=0.58,P0.01).Conclusion High-resolution transabdominal bowel utrasound has unique advantages in diagnosis and follow-up of CD.
【CateGory Index】： R445.1;R574