Biliary atresia echocardiography or ultrasound: Difference between revisions

Jump to navigation Jump to search
No edit summary
No edit summary
Line 1: Line 1:
== Overview ==
==Overview==
Ultrasonography shows a hypoplastic or absent gallbladder. Prandial state is not relevant to testing. Non filling of the gallbladder can be seen. The triangular cord sign described by Park et al. can be visualised.  
Ultrasonography shows a hypoplastic or absent gallbladder. Prandial state is not relevant to testing. Non filling of the gallbladder can be seen. The triangular cord sign described by Park et al. can be visualised.  
<br />
<br />


== Key Echocardiography/Ultrasound Findings in biliary atresia ==
==Key Ultrasound Findings in biliary atresia==
On abdominal ultrasound, biliary atresia shows:
On abdominal ultrasound, biliary atresia shows:


Line 10: Line 10:
*Changes of the hepatic artery
*Changes of the hepatic artery
**larger hepatic artery caliber <ref name="pmid19561262">{{cite journal| author=Lee MS, Kim MJ, Lee MJ, Yoon CS, Han SJ, Oh JT | display-authors=etal| title=Biliary atresia: color doppler US findings in neonates and infants. | journal=Radiology | year= 2009 | volume= 252 | issue= 1 | pages= 282-9 | pmid=19561262 | doi=10.1148/radiol.2522080923 | pmc= | url=https://www.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&tool=sumsearch.org/cite&retmode=ref&cmd=prlinks&id=19561262  }} </ref>
**larger hepatic artery caliber <ref name="pmid19561262">{{cite journal| author=Lee MS, Kim MJ, Lee MJ, Yoon CS, Han SJ, Oh JT | display-authors=etal| title=Biliary atresia: color doppler US findings in neonates and infants. | journal=Radiology | year= 2009 | volume= 252 | issue= 1 | pages= 282-9 | pmid=19561262 | doi=10.1148/radiol.2522080923 | pmc= | url=https://www.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&tool=sumsearch.org/cite&retmode=ref&cmd=prlinks&id=19561262  }} </ref>
**Doppler showing subcapsular hepatic arterial flow  
**Doppler showing subcapsular hepatic arterial flow
**right proximal hepatic artery diameter >1.5 mm
**right proximal hepatic artery diameter >1.5 mm
**hepatic artery to portal vein diameter ratio >0.45
**hepatic artery to portal vein diameter ratio >0.45

Revision as of 17:54, 9 March 2022

Overview

Ultrasonography shows a hypoplastic or absent gallbladder. Prandial state is not relevant to testing. Non filling of the gallbladder can be seen. The triangular cord sign described by Park et al. can be visualised.

Key Ultrasound Findings in biliary atresia

On abdominal ultrasound, biliary atresia shows:

  • echogenic fibrous tissue anterior to the portal vein: triangular cord sign showing a solid proximal biliary remnant anterior to the bifurcation of the portal vein. [1]
    • It represents the remnant of the extrahepatic bile duct
  • Changes of the hepatic artery
    • larger hepatic artery caliber [2]
    • Doppler showing subcapsular hepatic arterial flow
    • right proximal hepatic artery diameter >1.5 mm
    • hepatic artery to portal vein diameter ratio >0.45
  • gallbladder ghost triad [3]

Biliary atresia Microchapters

Home

Patient Information

Overview

Classification

Pathophysiology

Causes

Differentiating Biliary atresia from other Diseases

Epidemiology and Demographics

Natural History, Complications and Prognosis

Diagnosis

History and Symptoms

Physical Examination

Laboratory Findings

CT

MRI

Echocardiography or Ultrasound

Other Imaging Findings

Other Diagnostic Studies

Treatment

Medical Therapy

Surgery

Prevention

Cost-Effectiveness of Therapy

Future or Investigational Therapies

Case Studies

Case #1

Biliary atresia echocardiography or ultrasound On the Web

Most recent articles

Most cited articles

Review articles

CME Programs

Powerpoint slides

Images

American Roentgen Ray Society Images of Biliary atresia echocardiography or ultrasound

All Images
X-rays
Echo & Ultrasound
CT Images
MRI

Ongoing Trials at Clinical Trials.gov

US National Guidelines Clearinghouse

NICE Guidance

FDA on Biliary atresia echocardiography or ultrasound

CDC on Biliary atresia echocardiography or ultrasound

Biliary atresia echocardiography or ultrasound in the news

Blogs on Biliary atresia echocardiography or ultrasound

Directions to Hospitals Treating Biliary atresia

Risk calculators and risk factors for Biliary atresia echocardiography or ultrasound

References

  1. Lee HJ, Lee SM, Park WH, Choi SO (2003). "Objective criteria of triangular cord sign in biliary atresia on US scans". Radiology. 229 (2): 395–400. doi:10.1148/radiol.292020472. PMID 14595143.
  2. Lee MS, Kim MJ, Lee MJ, Yoon CS, Han SJ, Oh JT; et al. (2009). "Biliary atresia: color doppler US findings in neonates and infants". Radiology. 252 (1): 282–9. doi:10.1148/radiol.2522080923. PMID 19561262.
  3. Tan Kendrick AP, Phua KB, Ooi BC, Tan CE (2003). "Biliary atresia: making the diagnosis by the gallbladder ghost triad". Pediatr Radiol. 33 (5): 311–5. doi:10.1007/s00247-003-0867-z. PMID 12695863.