Study of Elliptical Centric View Ordering Technique with Spectrally Selected Inversion Recovery Pulse (spec-IR pulse)
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- OKUAKI TOMOYUKI
- Department of Radiology,Kanto Medical Center NTT EC
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- YAMASHITA MIDORI
- Department of Radiology,Kanto Medical Center NTT EC
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- WAKAMATSU OSAMU
- Department of Radiology,Kanto Medical Center NTT EC
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- SHIROUZU ICHIRO
- Department of Radiology,Kanto Medical Center NTT EC
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- MACHIDA TORU
- Department of Radiology,Kanto Medical Center NTT EC
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- MATSUDA TSUYOSHI
- GE Yokogawa Medical Systems.Ltd.
Bibliographic Information
- Other Title
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- Spectrally Selected Inversion Recovery Pulse(Spec-IR Pulse)を用いたElliptical Centric View Order法の検討
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Abstract
Among several techniques for contrast-enhanced MRA, the elliptical centric view ordering method, originally developed at the Mayo Clinic, is a promising one. It has been difficult to apply a fat-suppression prepulse, mainly because the conventional fat suppression method requires a longer acquisition time during sampling of the lowfrequency domain in k-space, and it causes severe image distortion due to the great change in longitudinal magnetization derived from fat tissue. We developed a novel method to append fat saturation to the elliptical centric view ordering technique, and assessed the feasibility of its use. Our method is to apply fat-saturation pulses only at selected sampling points when any gradient is applied in the slice-encoding direction. In this way, we achieved efficient suppression of fat-derived signal within a relatively short time, comparable to that of the conventional fat-saturation method, and succeeded in minimizing artifacts.
Journal
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- Japanese Journal of Radiological Technology
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Japanese Journal of Radiological Technology 59 (3), 401-409, 2003
Japanese Society of Radiological Technology
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Keywords
Details 詳細情報について
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- CRID
- 1390282681367659776
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- NII Article ID
- 10011988072
- 110003434132
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- NII Book ID
- AN00197784
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- ISSN
- 18814883
- 03694305
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- Text Lang
- ja
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- Data Source
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- JaLC
- Crossref
- CiNii Articles
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- Abstract License Flag
- Disallowed