دورية أكاديمية
Simultaneous brain and neck time-of-flight MRA using spiral multiband with localized quadratic encoding.
العنوان: | Simultaneous brain and neck time-of-flight MRA using spiral multiband with localized quadratic encoding. |
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المؤلفون: | Peng X; Department of Radiology, Mayo Clinic, Rochester, Minnesota, USA.; Department of Radiology, University of Iowa, Iowa City, Iowa, USA., Wang D; Department of Radiology, Mayo Clinic, Rochester, Minnesota, USA., Borup D; Royal Philips, Rochester, Minnesota, USA., Krishnamoorthy G; Royal Philips, Rochester, Minnesota, USA.; Department of Radiology, University of Wisconsin, Madison, Wisconsin, USA., Pipe JG; Department of Radiology, Mayo Clinic, Rochester, Minnesota, USA.; Department of Radiology, University of Wisconsin, Madison, Wisconsin, USA. |
المصدر: | Magnetic resonance in medicine [Magn Reson Med] 2024 Sep; Vol. 92 (3), pp. 1095-1103. Date of Electronic Publication: 2024 Apr 04. |
نوع المنشور: | Journal Article |
اللغة: | English |
بيانات الدورية: | Publisher: Wiley Country of Publication: United States NLM ID: 8505245 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1522-2594 (Electronic) Linking ISSN: 07403194 NLM ISO Abbreviation: Magn Reson Med Subsets: MEDLINE |
أسماء مطبوعة: | Publication: 1999- : New York, NY : Wiley Original Publication: San Diego : Academic Press, |
مواضيع طبية MeSH: | Magnetic Resonance Angiography*/methods , Neck*/diagnostic imaging , Brain*/diagnostic imaging , Signal-To-Noise Ratio*, Humans ; Algorithms ; Image Processing, Computer-Assisted/methods ; Carotid Arteries/diagnostic imaging ; Adult ; Male |
مستخلص: | Purpose: To develop a method that achieves simultaneous brain and neck time-of-flight (ToF) magnetic resonance angiography (MRA) within feasible scan timeframes. Methods: Localized quadratic (LQ) encoding is efficient for both signal-to-noise ratio (SNR) and in-flow enhancement. We proposed a spiral multiband LQ method to enable simultaneous intracranial and carotid ToF-MRA within a single scan. To address the venous signal contamination that becomes a challenge with multiband (MB) ToF, tilt-optimized non-saturated excitation (TONE) and partial-Fourier slice selection (PFSS) were further introduced in the LQ framework to mitigate the venous signal and improve artery contrast. A sequential spiral MB and LQ reconstruction pipeline was employed to obtain the brain-and-neck image volumes. Results: The proposed MB method was able to achieve simultaneous brain and neck ToF-MRA within a 2:50-min scan. The complementarily boosted SNR-efficiency by MB and LQ acquisitions allows for the increased spatial coverage without increase in scan time or noticeable compromise in SNR. The incorporation of both TONE and PFSS effectively alleviated the venous contamination with improved small vessel sensitivity. Selection of scan parameters such as the LQ factor and flip angle reflected the trade-off among SNR, blood contrast, and venous suppression. Conclusions: A novel MB spiral LQ approach was proposed to enable fast intracranial and carotid ToF-MRA with minimized venous corruption. The method has shown promise in MRA applications where large spatial coverage is necessary. (© 2024 The Authors. Magnetic Resonance in Medicine published by Wiley Periodicals LLC on behalf of International Society for Magnetic Resonance in Medicine.) |
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معلومات مُعتمدة: | Royal Philips |
فهرسة مساهمة: | Keywords: localized quadratic RF pulses; partial‐Fourier slice selection; spiral multiband; time‐of‐flight MRA |
تواريخ الأحداث: | Date Created: 20240405 Date Completed: 20240626 Latest Revision: 20240626 |
رمز التحديث: | 20240627 |
DOI: | 10.1002/mrm.30098 |
PMID: | 38576077 |
قاعدة البيانات: | MEDLINE |
تدمد: | 1522-2594 |
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DOI: | 10.1002/mrm.30098 |