T1 mapping technique for evaluating myocardial gadolinium deposition in patients with apical hypertrophic cardiomyopathy
10.13929/j.issn.1003-3289.2024.02.015
- VernacularTitle:T1 mapping技术用于评估心尖肥厚型心肌病患者心肌钆沉积
- Author:
Hongzhi YANG
1
;
Tian LAN
;
Ruwu YANG
Author Information
1. 西电集团医院医学影像科,陕西西安 710077
- Keywords:
cardiomyopathy,hypertrophic;
T1 mapping;
myocardial gadolinium deposition
- From:
Chinese Journal of Medical Imaging Technology
2024;40(2):226-230
- CountryChina
- Language:Chinese
-
Abstract:
Objective To observe the feasibility of T1 mapping technique for evaluating myocardial gadolinium deposition in patients with apical hypertrophic cardiomyopathy(AHCM).Methods Data of 60 AHCM patients were retrospectively analyzed.The patients were divided into enhanced group and control group according to underwent gadolinium-based contrast agent(GBCA)enhanced examination or not(each n=30).Myocardial T1 value at the basal,middle and apical myocardium of the left ventricle as well as spleen T1 at the same layers were measured.T1 relative-value(T1R)was calculated and then compared between groups and among different parts of left ventricle in enhanced group.T1R in enhanced group were further analyzed based on gender,age,body mass index,cardiac function,hypertension,hyperlipidemia,diabetes,apical thickness,ejection fraction,delayed enhancement and interval time from the first enhanced examination to the last review and total dose of GBCA.Results No significant difference of T1Rbasal,T1Rmiddle nor T1Rapical was found between groups(t=0.329,1.484,0.720,all P＞0.05),nor of T1R in different parts of left ventricle within enhanced group(F=0.765,P＞0.05).In enhanced group,significant differences of myocardial T1R was found between different genders as well as patients with or without hypertension(both P＜0.05).Conclusion T1 mapping technology could be used for evaluating myocardial gadolinium deposition in patients with AHCM.
