지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 저널정보
- 대한자기공명의과학회 Investigative Magnetic Resonance Imaging Investigative Magnetic Resonance Imaging 제20권 제1호
- 발행연도
- 2016.1
- 수록면
- 44 - 52 (9page)
이용수
초록· 키워드
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Purpose: To quantitatively and qualitatively compare fat-suppressed MRI qualityusing iterative decomposition of water and fat with echo asymmetry and leastsquaresestimation (IDEAL) with that using frequency selective fat-suppression (FSFS)T2- and postcontrast T1-weighted fast spin-echo images of the head and neck at 3T.
Materials and Methods: The study was approved by our Institutional Review Board.
Prospective MR image analysis was performed in 36 individuals at a single-center.
Axial fat suppressed T2- and postcontrast T1-weighted images with IDEAL andFSFS were compared. Visual assessment was performed by two independent readerswith respect to; 1) metallic artifacts around oral cavity, 2) susceptibility artifactsaround upper airway, paranasal sinus, and head-neck junction, 3) homogeneity of fatsuppression, 4) image sharpness, 5) tissue contrast of pathologies and lymph nodes.
The signal-to-noise ratios (SNR) for each image sequence were assessed.
Results: Both IDEAL fat suppressed T2- and T1-weighted images significantly reducedartifacts around airway, paranasal sinus, and head-neck junction, and significantlyimproved homogeneous fat suppression in compared to those using FSFS (P < 0.05for all). IDEAL significantly decreased artifacts around oral cavity on T2-weightedimages (P < 0.05, respectively) and improved sharpness, lesion-to-tissue, and lymphnode-to-tissue contrast on T1-weighted images (P < 0.05 for all). The mean SNRswere significantly improved on both T1- and T2-weighted IDEAL images (P < 0.05 forall).
Conclusion: IDEAL technique improves image quality in the head and neck byreducing artifacts with homogeneous fat suppression, while maintaining a high SNR.
목차
등록된 정보가 없습니다.
참고문헌 (29)
참고문헌 신청
Ross MR / 1994 / MR imaging of head and neck tumors: comparison of T1-weighted contrast-enhanced fat-suppressed images with conventional T2-weighted and fast spin-echo T2-weighted images / AJR Am J Roentgenol 163:173~178
Finkenzeller T / 2013 / Novel application of T1-weighted BLADE sequences with fat suppression compared to TSE in contrast-enhanced T1-weighted imaging of the neck: cutting-edge images? / J Magn Reson Imaging 37:660~668
Petersilge CA / 1996 / Optimizing imaging parameters for MR evaluation of the spine with titanium pedicle screws / AJR Am J Roentgenol 166:1213~1218
Gerdes CM / 2007 / IDEAL imaging of the musculoskeletal system: robust water fat separation for uniform fat suppression, marrow evaluation, and cartilage imaging / AJR Am J Roentgenol 189:W284~W291
Chen CA / 2009 / Multiecho IDEAL gradientecho water-fat separation for rapid assessment of cartilage volume at 1.5 T: initial experience / Radiology 252:561~567
Finkenzeller T / 2013 / Novel application of T1-weighted BLADE sequences with fat suppression compared to TSE in contrast-enhanced T1-weighted imaging of the neck: cutting-edge images? / J Magn Reson Imaging 37:660~668
Petersilge CA / 1996 / Optimizing imaging parameters for MR evaluation of the spine with titanium pedicle screws / AJR Am J Roentgenol 166:1213~1218
Gerdes CM / 2007 / IDEAL imaging of the musculoskeletal system: robust water fat separation for uniform fat suppression, marrow evaluation, and cartilage imaging / AJR Am J Roentgenol 189:W284~W291
Chen CA / 2009 / Multiecho IDEAL gradientecho water-fat separation for rapid assessment of cartilage volume at 1.5 T: initial experience / Radiology 252:561~567
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