Intra-biliary contrast-enhanced ultrasound for evaluating biliary obstruction during percutaneous transhepatic biliary drainage: A preliminary study
| Autor: | Rongqin Zheng, Zhongzhen Su, Huan-yi Guo, Kai Li, Jie Ren, Erjiao Xu |
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| Rok vydání: | 2012 |
| Předmět: |
Adult
Male medicine.medical_specialty Adolescent Sulfur Hexafluoride Contrast Media Pilot Projects Sensitivity and Specificity Young Adult Cholangiography medicine Humans Radiology Nuclear Medicine and imaging Drainage Phospholipids Ultrasonography Interventional Aged Aged 80 and over medicine.diagnostic_test business.industry Bile duct Ultrasound Reproducibility of Results General Medicine Middle Aged Jaundice Jaundice Obstructive Treatment Outcome medicine.anatomical_structure Biliary tract Female Percutaneous transhepatic biliary drainage Radiology medicine.symptom business Contrast-enhanced ultrasound |
| Zdroj: | European Journal of Radiology. 81:3846-3850 |
| ISSN: | 0720-048X |
| DOI: | 10.1016/j.ejrad.2012.06.025 |
| Popis: | The aimed of this study was to investigate the value of intra-biliary contrast-enhanced ultrasound (IB-CEUS) for evaluating biliary obstruction during percutaneous transhepatic biliary drainage (PTBD).80 patients with obstructive jaundice who underwent IB-CEUS during PTBD were enrolled. The diluted ultrasound contrast agent was injected via the drainage catheter to perform IB-CEUS. Both conventional ultrasound and IB-CEUS were used to detect the tips of the drainage catheters and to compare the detection rates of the tips. The obstructive level and degree of biliary tract were evaluated by IB-CEUS. Fluoroscopic cholangiography (FC) and computer tomography cholangiography (CTC) were taken as standard reference for comparison.Conventional ultrasound displayed only 43 tips (43/80, 53.8%) of the drainage catheters within the bile ducts while IB-CEUS identified all 80 tips (80/80, 100%) of the drainage catheters including 4 of them out of the bile duct (P0.001). IB-CEUS made correct diagnosis in 44 patients with intrahepatic and 36 patients with extrahepatic biliary obstructions. IB-CEUS accurately demonstrated complete obstruction in 56 patients and incomplete obstruction in 21 patients. There were 3 patients with incomplete obstruction misdiagnosed to be complete obstruction by IB-CEUS. The diagnostic accuracy of biliary obstruction degree was 96.3% (77/80).IB-CEUS could improve the visualization of the drainage catheters and evaluate the biliary obstructive level and degree during PTBD. IB-CEUS may be the potential substitute to FC in the PTBD procedure. |
| Databáze: | OpenAIRE |
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