中国医疗设备2017，Vol.32Issue(3)：77-79,102,4.DOI:10.3969/j.issn.1674-1633.2017.03.020
高分辨率与低分辨率3D-SPACE序列在磁共振胰岛管水成像中的应用对比
Comparison of High-Resolution and Low-Resolution 3D-SPACE Sequences in Magnetic Resonance Cholangiopancreatography
肖建明 1彭涛 1王宗勇 1王娜1
作者信息
- 1. 成都大学附属医院 放射科,四川成都 610081
- 折叠
摘要
Abstract
Objective To compare the application effects of 3 dimensional sampling perfertion with application optimized contrasts using different flip angle evolutions (3D-SPACE) sequence under the status of high-resolution and low-resolution in Magnetic Resonance Cholangiopancreatography (MRCP) examination. Methods Forty-four examinees were conducted MRCP scanning with Siemens Avanto 1.5T magnetic resonance imaging (MRI) scanner. In such examination, examinees were scanned by adopting 3D-SPACE sequence with high-resolution and low-resolution mode respectively. Then the imaging effects in the two resolution models were evaluated and scored by two senior radiologists separately. Later, the scoring results were analyzed statistically with the Wilcoxon rank sum test. Results Minimal changes were displayed more clearly in original image with high-resolution 3D-SPACE sequence, whilst imaging time of low-resolution 3D-SPACE sequence was less. There was no significant difference in image quality with Maximum Intensity Projection (MIP) reconstruction technology between the two resolution models (score difference in delineating common bile duct: P=0.899, score difference in delineating right and left hepatic duct as well as main pancreatic duct: P=0.623). Conclusion For examinees with poor cooperation, low-resolution 3D-SPACE sequence was easier to get qualified images.关键词
磁共振胰胆管水成像/可变翻转角快速自旋回波/最大密度投影/分辨率/3D-SPACEKey words
magnetic resonance cholangiopancreatography/sampling perfertion with application optimized contrasts using different flip angle evolutions/maximum intensity projection/resolution ratio/3D-SPACE分类
医药卫生引用本文复制引用
肖建明,彭涛,王宗勇,王娜..高分辨率与低分辨率3D-SPACE序列在磁共振胰岛管水成像中的应用对比[J].中国医疗设备,2017,32(3):77-79,102,4.
