کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4250974 1283944 2015 11 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Future Image Acquisition Trends for PET/MRI
موضوعات مرتبط
علوم پزشکی و سلامت پزشکی و دندانپزشکی رادیولوژی و تصویربرداری
پیش نمایش صفحه اول مقاله
Future Image Acquisition Trends for PET/MRI
چکیده انگلیسی

Hybrid PET/MRI scanners have become commercially available in the past years but are not yet widely distributed. The combination of a state-of-the-art PET with a state-of-the-art MRI scanner provides numerous potential advantages compared with the established PET/CT hybrid systems, namely, increased soft tissue contrast; functional information from MRI such as diffusion, perfusion, and blood oxygenation level–dependent techniques; true multiplanar data acquisition; and reduced radiation exposure. On the contrary, current PET/MRI technology is hampered by several shortcomings compared with PET/CT, the most important issues being how to use MR data for PET attenuation correction and the low sensitivity of MRI for small-scale pulmonary pathologies compared with high-resolution CT. Moreover, the optimal choice for hybrid PET/MRI acquisition protocols needs to be defined providing the highest possible degree of sensitivity and specificity within the constraints of the available measurement time. A multitude of new acquisition strategies of PET and MRI not only offer to overcome current obstacles of hybrid PET/MRI but also provide deeper insights into the pathophysiology of oncological, inflammatory, or degenerative diseases from the combination of molecular and functional imaging techniques.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Seminars in Nuclear Medicine - Volume 45, Issue 3, May 2015, Pages 201–211
نویسندگان
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