کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1807484 1025263 2007 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Signal-to-noise ratio comparison of phased-array vs. implantable coil for rat spinal cord MRI
موضوعات مرتبط
مهندسی و علوم پایه فیزیک و نجوم فیزیک ماده چگال
پیش نمایش صفحه اول مقاله
Signal-to-noise ratio comparison of phased-array vs. implantable coil for rat spinal cord MRI
چکیده انگلیسی

The signal-to-noise ratio (SNR) performance and practicality issues of a four-element phased-array coil and an implantable coil system were compared for rat spinal cord magnetic resonance imaging (MRI) at 7 T. MRI scans of the rat spinal cord at T10 were acquired from eight rats over a 3 week period using both coil systems, with and without laminectomy. The results demonstrate that both the phased array and the implantable coil systems are feasible options for rat spinal cord imaging at 7 T, with both systems providing adequate SNR for 100-μm spatial resolution at reasonable imaging times. The implantable coils provided significantly higher SNR, as compared to the phased array (average SNR gain of 5.3× between the laminectomy groups and 2.5× between the nonlaminectomy groups). The implantable coil system should be used if maximal SNR is critical, whereas the phased array is a good choice for its ease of use and lesser invasiveness.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Magnetic Resonance Imaging - Volume 25, Issue 8, October 2007, Pages 1215–1221
نویسندگان
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