Korean Journal of Radiology

The Korean Society of Radiology (대한영상의학회)
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Depiction of the Periosteum Using Ultrashort Echo Time Pulse Sequence with Three-Dimensional Cone Trajectory and Histologic Correlation in a Porcine Model

  • Dae Joong Kim (Department of Anatomy, College of Medicine, Inha University) ;
  • Kun Hwang (Department of Plastic Surgery, College of Medicine, Inha University) ;
  • Hun Kim (Department of Plastic Surgery, College of Medicine, Inha University) ;
  • Jang Gyu Cha (Department of Radiology, Soonchunhyang University Hospital) ;
  • Hyungseok Jang (Department of Radiology, University of California) ;
  • Ju-Yong Park (Department of Radiology, College of Medicine, Inha University) ;
  • Yeo Ju Kim (Department of Radiology, College of Medicine, Inha University)
  • Received : 2020.05.25
  • Accepted : 2020.10.14
  • Published : 2021.05.01
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Abstract

Objective: To evaluate the signal intensity of the periosteum using ultrashort echo time pulse sequence with three-dimensional cone trajectory (3D UTE) with or without fat suppression (FS) to distinguish from artifacts in porcine tibias. Materials and Methods: The periosteum and overlying soft tissue of three porcine lower legs were partially peeled away from the tibial cortex. Another porcine tibia was prepared as three segments: with an intact periosteum outer and inner layer, with an intact periosteum inner layer, and without periosteum. Axial T1 weighted sequence (T1 WI) and 3D UTE (FS) were performed. Another porcine tibia without periosteum was prepared and subjected to 3D UTE (FS) and T1 WI twice, with positional changes. Two radiologists analyzed images to reach a consensus. Results: The three periosteal tissues that were partially peeled away from the cortex showed a high signal in 3D UTE (FS) and low signal on T1 WI. 3D UTE (FS) showed a high signal around the cortical surface with an intact outer and inner periosteum, and subtle high signals, mainly around the upper cortical surfaces with the inner layer of the periosteum and without periosteum. T1 WI showed no signal around the cortical surfaces, regardless of the periosteum state. The porcine tibia without periosteum showed changes in the high signal area around the cortical surface as the position changed in 3D UTE (FS). No signal was detected around the cortical surface in T1 WI, regardless of the position change. Conclusion: The periosteum showed a high signal in 3D UTE and 3D UTE FS that overlapped with artifacts around the cortical bone.

Keywords

Acknowledgement

We extend special thanks to scientists and applicators in GE Healthcare, including Youngju Lee, Michael Carl, for developing and optimizing the 3D UTE sequence. We also deeply appreciate our MR technicians, including Gyangpyo Hong.

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