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• Clinical Article •
Normal appearance of whole-body PET-like imaging at 1.5 T MRI
LI Ji-long  ZHANG Hong-bin  PENG Rong-jie  YANG Run  MA Xiong-wei  LI Ya-ni  LÜ Yan-ming  WANG Dong-ping 

DOI:10.3969/j.issn.1674-8034.2015.11.011.


[Abstract] Objective: To investigate the normal appearance of whole-body PET-like imaging at 1.5 T MR scanner.Materials and Methods: Forty healthy volunteers with different age underwent whole-body PET-like MR examination at 1.5 T scanner. The data was reformatted using Functool and 3D-MIP software at AW4.6 workstation. Then, maximum intensity projection (MIP), inverted-gray-scale and pseudocolor processing PET-like images were obtained. Signal of the normal tissue was observed. Correlation between age and signal of lumbar vertebrae and intervertebral discs was analyzed.Results: (1) Fat, muscle, lungs, liver, gastrointestinal tract, and cerebrospinal fluid showed hypointensity. (2) Brain, spinal cord, glands of head and neck, spleen, gallbladder, genital gland, and intervertebral discs showed hyperintensity. (3) Vertebral body showed hyperintensity in children and mainly hypointensity in healthy volunteers over 60 years of age. (4) There were significant negative correlation between age and signal of lumbar vertebrae (r=-0.6917, P<0.05) and intervertebral discs (r=-0.7562, P<0.05).Conclusions: It will be beneficial for diagnosis after correctly understanding normal appearance of PET-like images.
[Keywords] Diffusion magnetic resonance imaging；Whole body imaging；Age factors

LI Ji-long* Department of Radiology, Jingning People's Hospital of Gansu Province, Jingning 743400, China

ZHANG Hong-bin Department of Radiology, Jingning People's Hospital of Gansu Province, Jingning 743400, China

PENG Rong-jie Department of Radiology, Jingning People's Hospital of Gansu Province, Jingning 743400, China

YANG Run Department of Radiology, Jingning People's Hospital of Gansu Province, Jingning 743400, China

MA Xiong-wei Department of Radiology, Jingning People's Hospital of Gansu Province, Jingning 743400, China

LI Ya-ni Department of Radiology, Jingning People's Hospital of Gansu Province, Jingning 743400, China

LÜ Yan-ming Department of Radiology, Jingning People's Hospital of Gansu Province, Jingning 743400, China

WANG Dong-ping Department of Radiology, Jingning People's Hospital of Gansu Province, Jingning 743400, China

*Correspondence to: Li JL, E-mail: 654640021@qq.com

Conflicts of interest   None.

Received  2015-03-09
Accepted  2015-09-14
DOI: 10.3969/j.issn.1674-8034.2015.11.011
DOI:10.3969/j.issn.1674-8034.2015.11.011.

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