SNR analysis of 3D magnetic resonance tomosynthesis (MRT) imaging

Min Oh Kim, Donghyun Kim

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

In conventional 3D Fourier transform (3DFT) MR imaging, signal-to-noise ratio (SNR) is governed by the well-known relationship of being proportional to the voxel size and square root of the imaging time. Here, we introduce an alternative 3D imaging approach, termed MRT (Magnetic Resonance Tomosynthesis), which can generate a set of tomographic MR images similar to multiple 2D projection images in x-ray. A multiple-oblique-view (MOV) pulse sequence is designed to acquire the tomography-like images used in tomosynthesis process and an iterative back-projection (IBP) reconstruction method is used to reconstruct 3D images. SNR analysis is performed and shows that resolution and SNR tradeoff is not governed as with typical 3DFT MR imaging case. The proposed method provides a higher SNR than the conventional 3D imaging method with a partial loss of slice-direction resolution. It is expected that this method can be useful for extremely low SNR cases.

Original languageEnglish
Title of host publicationMedical Imaging 2012
Subtitle of host publicationPhysics of Medical Imaging
Volume8313
DOIs
Publication statusPublished - 2012 May 4
EventMedical Imaging 2012: Physics of Medical Imaging - San Diego, CA, United States
Duration: 2012 Feb 52012 Feb 8

Other

OtherMedical Imaging 2012: Physics of Medical Imaging
CountryUnited States
CitySan Diego, CA
Period12/2/512/2/8

Fingerprint

Signal-To-Noise Ratio
Magnetic resonance
magnetic resonance
Signal to noise ratio
signal to noise ratios
Magnetic Resonance Imaging
Imaging techniques
Fourier Analysis
Fourier transforms
projection
tradeoffs
Tomography
Magnetic Resonance Spectroscopy
tomography
X-Rays
X rays
pulses
x rays

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Biomaterials
  • Radiology Nuclear Medicine and imaging

Cite this

Kim, M. O., & Kim, D. (2012). SNR analysis of 3D magnetic resonance tomosynthesis (MRT) imaging. In Medical Imaging 2012: Physics of Medical Imaging (Vol. 8313). [83136C] https://doi.org/10.1117/12.911199
Kim, Min Oh ; Kim, Donghyun. / SNR analysis of 3D magnetic resonance tomosynthesis (MRT) imaging. Medical Imaging 2012: Physics of Medical Imaging. Vol. 8313 2012.
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Kim, MO & Kim, D 2012, SNR analysis of 3D magnetic resonance tomosynthesis (MRT) imaging. in Medical Imaging 2012: Physics of Medical Imaging. vol. 8313, 83136C, Medical Imaging 2012: Physics of Medical Imaging, San Diego, CA, United States, 12/2/5. https://doi.org/10.1117/12.911199

SNR analysis of 3D magnetic resonance tomosynthesis (MRT) imaging. / Kim, Min Oh; Kim, Donghyun.

Medical Imaging 2012: Physics of Medical Imaging. Vol. 8313 2012. 83136C.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

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N2 - In conventional 3D Fourier transform (3DFT) MR imaging, signal-to-noise ratio (SNR) is governed by the well-known relationship of being proportional to the voxel size and square root of the imaging time. Here, we introduce an alternative 3D imaging approach, termed MRT (Magnetic Resonance Tomosynthesis), which can generate a set of tomographic MR images similar to multiple 2D projection images in x-ray. A multiple-oblique-view (MOV) pulse sequence is designed to acquire the tomography-like images used in tomosynthesis process and an iterative back-projection (IBP) reconstruction method is used to reconstruct 3D images. SNR analysis is performed and shows that resolution and SNR tradeoff is not governed as with typical 3DFT MR imaging case. The proposed method provides a higher SNR than the conventional 3D imaging method with a partial loss of slice-direction resolution. It is expected that this method can be useful for extremely low SNR cases.

AB - In conventional 3D Fourier transform (3DFT) MR imaging, signal-to-noise ratio (SNR) is governed by the well-known relationship of being proportional to the voxel size and square root of the imaging time. Here, we introduce an alternative 3D imaging approach, termed MRT (Magnetic Resonance Tomosynthesis), which can generate a set of tomographic MR images similar to multiple 2D projection images in x-ray. A multiple-oblique-view (MOV) pulse sequence is designed to acquire the tomography-like images used in tomosynthesis process and an iterative back-projection (IBP) reconstruction method is used to reconstruct 3D images. SNR analysis is performed and shows that resolution and SNR tradeoff is not governed as with typical 3DFT MR imaging case. The proposed method provides a higher SNR than the conventional 3D imaging method with a partial loss of slice-direction resolution. It is expected that this method can be useful for extremely low SNR cases.

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Kim MO, Kim D. SNR analysis of 3D magnetic resonance tomosynthesis (MRT) imaging. In Medical Imaging 2012: Physics of Medical Imaging. Vol. 8313. 2012. 83136C https://doi.org/10.1117/12.911199