Association between common bile duct diameter and abdominal aorta calcium score

Yashar Moharamzad1, Sahar Abbasi1, Morteza Sanei Taheri2

  • 1Department of Radiology, Shohada Hospital, Shahid Beheshti University of Medical Sciences, Tajrish Sq, Tehran, 1445613131, Iran.

Insights

Atherosclerosis, a condition linked to aging, is associated with a larger common bile duct (CBD) diameter. This study found a moderate correlation between abdominal aorta atherosclerosis and increased CBD diameter in asymptomatic patients.

Area of Science:

  • Vascular Medicine
  • Gastroenterology
  • Radiology

Background:

  • Aging is linked to an increased normal upper limit of the common bile duct (CBD) diameter.
  • Atherosclerosis, a common aging-related condition, may influence CBD diameter by affecting smooth muscle contractility and blood flow.

Purpose of the Study:

  • To investigate the association between CBD diameter and abdominal aorta (AA) atherosclerosis.

Main Methods:

  • 99 asymptomatic patients without a history of cholecystectomy underwent contrast-enhanced CT scans.
  • CBD diameter was measured, and AA atherosclerosis was quantified using the Agatston score.

Main Results:

  • Patients with AA atherosclerosis (Agatston score > 0) had a significantly larger mean CBD diameter (7.39 ± 2.07 mm) compared to those without calcification (5.29 ± 1.32 mm).
  • A moderate positive correlation was observed between CBD diameter and the Agatston score (ρ = 0.43, P = 0.005).

Conclusions:

  • Atherosclerosis may contribute to an increased CBD diameter, potentially due to effects on smooth muscle.
  • Further research is needed to determine if upper limits for normal CBD diameter should be adjusted for patients with subclinical or clinical atherosclerosis.
Abstract

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