Assessment of left ventricular mvocardial scar with three-dimensional MRI
10.3760/cma.j.issn.1005-1201.2011.10.009
- VernacularTitle:MRI三维技术在冠心病左心室瘢痕评估中的应用价值
- Author:
Gang YIN
;
Shihua ZHAO
;
Minjie LU
;
Shiliang JIANG
;
Huaibing CHENG
;
Ning MA
;
Yan ZHANG
;
Jian LING
;
Xinling YANG
;
Jing AN
;
Zuehlsdorff SVEN
;
Jerecic RENATA
- Publication Type:Journal Article
- Keywords:
Heart diseases;
Magnetic resonance imaging;
Investigative techniques
- From:
Chinese Journal of Radiology
2011;45(10):929-932
- CountryChina
- Language:Chinese
-
Abstract:
ObjectiveTo assess the value of free-breathing 3D phase sensitive inversion recovery (PSIR) turbo FLASH for demonstrating the left ventricular myocardial scar in patients with myocardial infarction.MethodsTwenty-three patients with myocardial infarction underwent 2D and 3D phase sensitive inversion recovery (PSIR) Turbo FLASH sequences 10-15 minutes after injection of dimeglumine gadopentetate.The image quality,the area,location and volume of hyperenhanced scar were independently assessed by two experienced radiologists.Student′s t test or rank sum test and Pearson linear correlation were used for the statistics.ResultsThere were no significant differences in the overall image quality (2.57 ±0.59 vs 2.39 ±0.66,Z=-0.93,P =0.35),the area (24.48 ±10.83 vs 29.00 ± 11.56,Z=-1.41,P =0.16) and location ( 16.78 ± 6.51 vs 18.87 ± 6.76,Z =- 1.17,P =0.24) of hyperenhanced scar between 2D and 3D PSIR sequences.The mean volume of hyperenhanced scar was significantly greater in 3D PSIR sequence than that in 2D PSI R sequence [(23.46 ± 10.61 ) vs (31.65 ± 13.86) cm3,t =-2.25,P =0.03].There was a good correlation in the volume of hyperenhanced scar between 2D PSIR and 3D PSIR sequences (r=0.940,P＜0.01 ;y =2.851 + 1.228x,R2 =0.883).ConclusionFree-breathing 3D PSIR Turbo FLASH is a promising new imaging technique for accurate assessment of myocardial scar.
