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.

Ross, Michael; Schomer, Donald F.; Chappell, Phylliss M.; Enzmann, Dieter R.

doi:10.2214/ajr.163.1.8010208

Cited by 59 publications

(29 citation statements)

References 6 publications

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“…Susceptibility artifacts and incomplete fat suppression are frequently encountered problems during MR evaluations of head and neck diseases (1,22). The IDEAL technique was introduced as an alternative to provide homogeneous fat suppression and reduce metal-induced artifacts (4)(5)(6)(7)(8)(9)(10)(11)(12).…”

Section: Discussionmentioning

confidence: 99%

“…Fat suppression techniques are routinely used during body MRI, especially T2-weighted and postcontrast T1-weighted imaging, which are essential for lesion detection and characterization in the head and neck, due to the large amounts of fat present in these regions (1,2). The commonly used fat suppression methods are classified into 3 types; chemically selective methods: FSFS and water excitation (WE); inversion recovery methods: short T1 inversion recovery (STIR), spectral presuppression with inversion recovery (SPIR) and spectral adiabatic inversion recovery (SPAIR); and chemical shift based water-fat separation methods: Dixon methods including IDEAL (23)(24)(25).…”

Section: Discussionmentioning

confidence: 99%

“…The fat suppression technique is routinely used in clinical magnetic resonance imaging (MRI) of the head and neck to improve tissue or lesion contrast for characterization purposes (1). In head and neck MRI, abrupt changes in contour and density between air and soft tissue make magnetic inhomogeneity and susceptibility artifacts, which present as regions of signal loss and architectural distortion (1,2).…”

Section: Introductionmentioning

confidence: 99%

“…In head and neck MRI, abrupt changes in contour and density between air and soft tissue make magnetic inhomogeneity and susceptibility artifacts, which present as regions of signal loss and architectural distortion (1,2). This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/ by-nc/3.0/) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.…”

Section: Introductionmentioning

confidence: 99%

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Improvement of Fat Suppression and Artifact Reduction Using IDEAL Technique in Head and Neck MRI at 3T

Hong

Lee

Kang

et al. 2016

Investig Magn Reson Imaging

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Original ArticlePurpose: To quantitatively and qualitatively compare fat-suppressed MRI quality using iterative decomposition of water and fat with echo asymmetry and leastsquares estimation (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 and FSFS were compared. Visual assessment was performed by two independent readers with respect to; 1) metallic artifacts around oral cavity, 2) susceptibility artifacts around upper airway, paranasal sinus, and head-neck junction, 3) homogeneity of fat suppression, 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 reduced artifacts around airway, paranasal sinus, and head-neck junction, and significantly improved homogeneous fat suppression in compared to those using FSFS (P < 0.05 for all). IDEAL significantly decreased artifacts around oral cavity on T2-weighted images (P < 0.05, respectively) and improved sharpness, lesion-to-tissue, and lymph node-to-tissue contrast on T1-weighted images (P < 0.05 for all). The mean SNRs were significantly improved on both T1-and T2-weighted IDEAL images (P < 0.05 for all). Conclusion: IDEAL technique improves image quality in the head and neck by reducing artifacts with homogeneous fat suppression, while maintaining a high SNR.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Improvement of Fat Suppression and Artifact Reduction Using IDEAL Technique in Head and Neck MRI at 3T

Hong

Lee

Kang

et al. 2016

Investig Magn Reson Imaging

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“…2 Accurate assessment of tumor margins and invasion of adjacent structures are also essential for proper staging and therapy. 3 For this task, MR imaging using unenhanced and enhanced fat-suppressed spin-echo (SE) sequences is widely accepted as the method of choice, 4,5 in addition to high-resolution CT, 6,7 in particular when the skull base is involved. Nonetheless, SE MR imaging has several limitations, particularly its sensitivity to artifacts.…”

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confidence: 99%

Head and Neck Paragangliomas: Value of Contrast-Enhanced 3D MR Angiography

Neves¹,

Huwart²,

Jourdan³

et al. 2008

AJNR Am J Neuroradiol

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BACKGROUND AND PURPOSE:A rapid and accurate MR imaging technique would be beneficial to assess paragangliomas in the head and neck and to distinguish them from other lesions. The purpose of this study was to determine whether the combination of elliptic centric contrast-enhanced MR angiography (CE-MRA) and unenhanced and enhanced spin-echo imaging (conventional MR imaging) is more accurate than conventional MR imaging alone to assess paragangliomas in the head and neck.

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MRI of bone tumors: Fast STIR imaging as a substitute for T1‐weighted contrast‐enhanced fat‐suppressed spin‐echo imaging

Tokuda

Hayashi

Matsunaga

2004

Magnetic Resonance Imaging

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Purpose:To compare the usefulness of short inversion recovery (STIR) and T1-weighted, contrast-enhanced, fatsuppressed (T1W-CEFS) sequences for the evaluation of bone tumors. Materials and Methods:Eighteen patients with 19 bone tumors who underwent both STIR and T1W-CEFS imaging were evaluated. The tumors were categorized in pairs as follows: bone marrow and soft-tissue components, benign and malignant tumors, and tumors with and without mineralization. The signal difference-to-noise ratio (SDNR), signal-to-noise ratio (SNR), and tumor volume were calculated in each group. An additional qualitative analysis was performed by means of the ratings of imaging contrast. Results:The mean SDNRs of all bone marrow components and bone marrow components without mineralization were significantly higher on fast STIR images than on T1W-CEFS images (P Ͻ 0.05). There was no significant difference in the mean SDNR and SNR of the other group (surrounding soft tissue components, bone marrow components with mineralization, benign and malignant lesions) between fast STIR images and T1W-CEFS images. The mean volume of the tumors was significantly higher with STIR than with the T1W-CEFS sequence (P Ͻ 0.05). Conclusion:The STIR sequence should be used instead of T1W-CEFS imaging for the evaluation of bone tumors.

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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.

Cited by 59 publications

References 6 publications

Improvement of Fat Suppression and Artifact Reduction Using IDEAL Technique in Head and Neck MRI at 3T

Improvement of Fat Suppression and Artifact Reduction Using IDEAL Technique in Head and Neck MRI at 3T

Head and Neck Paragangliomas: Value of Contrast-Enhanced 3D MR Angiography

MRI of bone tumors: Fast STIR imaging as a substitute for T1‐weighted contrast‐enhanced fat‐suppressed spin‐echo imaging

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