Research Article Details

Article ID: A01318
PMID: 34789138
Source: Curr Med Imaging
Title: Evaluation of Aortic Distensibility in Patients with Nonalcoholic Fatty Liver using CT.
Abstract: BACKGROUND: Nonalcoholic fatty liver disease has attracted considerable attention with continuously increasing morbidity. OBJECTIVE: To evaluate the aortic distensibility in patients with non-diabetes and hypertension-type nonalcoholic fatty liver disease(NAFLD) through dual-source computed tomography(DSCT). METHOD: 120 patients with NAFLD (experimental group) and 30 healthy subjects (control group) were consecutively enrolled in the study. In the two groups, aortic distensibility was calculated as follows: D = △A/(A0 ×△p). Record fasting insulin, fasting blood glucose, fasting lipid status, age, heart rate, waist circumference, systolic blood pressure, and diastolic blood pressure. Calculate homeostasis model assessment of insulin resistance (HOMA-IR) and body mass index (BMI). A comparative analysis between the two groups was carried out, followed by correlation analysis between D value and risk factors. RESULTS: D value and liver attenuation of the patients in the NAFLD group were significantly reduced relative to those in the control group (2.24±0.63×10-3mmHg-1 vs. 3.19±0.86×10-3mmHg-1, P<0.001 and 41±6HU vs. 53±5HU, P<0.001, respectively) and their fasting blood glucose, fasting insulin, triglyceride, low-density lipoprotein, aspartate aminotransferase, alanine transaminase, HOMA-IR, and BMI were higher than those in the control group. Liver attenuation, HOMA-IR, age, and BMI were significantly correlated with D value in the NAFLD group. The stepwise multiple linear regression analysis indicates that Liver attenuation and HOMA-IR were the significant risk factors for D value (β coefficient =0.43, P =0.001, and β coefficient =-0.33, P =0.02, respectively). CONCLUSION: Patients with NAFLD suffer from a reduction in aortic distensibility, and insulin resistance may play a significant role in the early atherosclerosis stage.
DOI: 10.2174/1573405617666211117141640