Biological tissues;
biomedical signal analysis;
image segmentation;
magnetic resonance imaging (MRI);
optimization methods;
simulation;
time-optimal control;
MRI;
SELECTION;
CONTRAST;
D O I:
10.1109/TIM.2009.2016888
中图分类号:
TM [电工技术];
TN [电子技术、通信技术];
学科分类号:
0808 ;
0809 ;
摘要:
Nuclear magnetic resonance imaging is a routine clinical system used for whole-body patient scanning that provides 3-D images. Recent technological innovations have encouraged the use of this technology for noninvasive coronary, heart, and chest investigation or for research applications, but the image quality of this technique depends on several factors. Some parameters are linked to the apparatus designed to acquire the magnetic resonance image, whereas others can be controlled by the user. In this paper, the authors analyze the software-controlled magnetic-resonance-imaging parameters to reduce the health examination acquisition time by assuring a good quality of the images. This objective is of fundamental importance to both increase the number of clinical tests produced with this equipment and to reduce the radiation doses in the patients. For this purpose, the parameters that influence the time acquisition and the signal-to-noise ratio were investigated, and a software platform for optimizing the imaging acquisition time was developed.
机构:
UNIV PITTSBURGH, MED CTR, DEPT RADIOL, MR RES CTR, PITTSBURGH, PA 15213 USAUNIV PITTSBURGH, MED CTR, DEPT RADIOL, MR RES CTR, PITTSBURGH, PA 15213 USA
Thulborn, KR
Uttecht, S
论文数: 0|引用数: 0|
h-index: 0|
机构:
UNIV PITTSBURGH, MED CTR, DEPT RADIOL, MR RES CTR, PITTSBURGH, PA 15213 USAUNIV PITTSBURGH, MED CTR, DEPT RADIOL, MR RES CTR, PITTSBURGH, PA 15213 USA
Uttecht, S
Betancourt, C
论文数: 0|引用数: 0|
h-index: 0|
机构:
UNIV PITTSBURGH, MED CTR, DEPT RADIOL, MR RES CTR, PITTSBURGH, PA 15213 USAUNIV PITTSBURGH, MED CTR, DEPT RADIOL, MR RES CTR, PITTSBURGH, PA 15213 USA
Betancourt, C
Talagala, SL
论文数: 0|引用数: 0|
h-index: 0|
机构:
UNIV PITTSBURGH, MED CTR, DEPT RADIOL, MR RES CTR, PITTSBURGH, PA 15213 USAUNIV PITTSBURGH, MED CTR, DEPT RADIOL, MR RES CTR, PITTSBURGH, PA 15213 USA
Talagala, SL
Boada, FE
论文数: 0|引用数: 0|
h-index: 0|
机构:
UNIV PITTSBURGH, MED CTR, DEPT RADIOL, MR RES CTR, PITTSBURGH, PA 15213 USAUNIV PITTSBURGH, MED CTR, DEPT RADIOL, MR RES CTR, PITTSBURGH, PA 15213 USA
Boada, FE
Shen, GX
论文数: 0|引用数: 0|
h-index: 0|
机构:
UNIV PITTSBURGH, MED CTR, DEPT RADIOL, MR RES CTR, PITTSBURGH, PA 15213 USAUNIV PITTSBURGH, MED CTR, DEPT RADIOL, MR RES CTR, PITTSBURGH, PA 15213 USA