Cardiac MR tissue tracking technique for quantitatively evaluating myocardial strain of cardiac amyloidosis patients
10.13929/j.issn.1672-8475.2024.01.009
- VernacularTitle:心脏MR组织追踪技术定量评估心肌淀粉样变性患者心肌应变
- Author:
Jiangkai HE
1
;
Chen CUI
;
Wei MA
;
Zhi WANG
;
Jia LIU
;
Wei LI
;
Kai ZHAO
;
Rile NAI
;
Shasha XU
;
Jianxing QIU
Author Information
1. 北京大学第一医院医学影像科,北京 100034
- Keywords:
myocardium;
amyloidosis;
magnetic resonance imaging;
tissue tracking technique
- From:
Chinese Journal of Interventional Imaging and Therapy
2024;21(1):42-47
- CountryChina
- Language:Chinese
-
Abstract:
Objective To observe the feasibility of cardiac MR tissue tracking(CMR-TT)technique for quantitatively evaluating myocardial strain of patients with myocardial amyloidosis(CA).Methods Cardiac MRI were collected from 20 patients of immunoglobulin amyloid light-chain CA(AL-CA,group A),20 cases of transthyretin CA(ATTR-CA,group B)and 20 healthy subjects(group C),and myocardial strain parameters were obtained using CMR-TT technique.Left ventricular cardiac function parameters were compared among 3 groups,so were strain parameters of each myocardial segment of left ventricle and global myocardium,including 3D longitudinal strain(LS),3D radial strain(RS)and 3D circumferential strain(CS).Results Compared with those in group C,significant differences of left ventricular cardiac function parameters were found in both group A and B(all P＜0.01),while no statistical difference was found between group A and B(all P＞0.05).Except for apical segment RS(P=0.81),strain parameters in group A and B were both lower than those in group C(all P＜0.01),while no significant difference was detected between group A and B(all P＞0.05).Conclusion CMR-TT technique could be used to quantitatively evaluate left ventricular myocardial strain of CA patients.
