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腹部MRI中的T1加权运动缓解:技术原理,临床应用,当前限制和未来前景

Orpheus Kolokythas¹, Ebru Yaman Akcicek¹, Halit Akcicek¹

¹From the Department of Radiology, University of Washington, 1959 NE Pacific St, Box 357115, Seattle, WA 98195 (O.K., N.B., G.M.C., D.V.S., A.M.); Department of Radiology and Imaging Sciences, University of Utah, Salt Lake City, Utah (E.Y.A., H.A.); Department of Radiology, UT Southwestern Medical Center, Dallas, Tex (N.R., T.Y.); Department of MRI Development, Philips Healthcare, Best, the Netherlands (H.M.P.); Department of Radiology, New York University Langone Health-Long Island Division, New York, NY (J.W.R.).

Radiographics : a review publication of the Radiological Society of North America, Inc

|July 11, 2024

概括

自由呼吸技术可以改善T1加权的腹部MRI,对于无法保持呼吸的患者来说. 这些方法减轻了运动工件,提高了T1W成像中的诊断准确性和检查效率.

科学领域:

放射学放射学是一门学科.
医疗成像医学成像
磁共振成像是一种磁共振成像技术.

背景情况:

T1加权 (T1W) 成像对于腹部MRI至关重要,但往往需要多次喘息 (BHs).
在BH期间患者的运动降低了T1W图像质量,阻碍了诊断并降低了效率.
并非所有患者都能维持必要的喘息,这对腹部MRI构成了挑战.

研究的目的:

审查T1W腹部MRI自由呼吸运动缓解技术的技术原则.
提供这些技术的临床应用和局限性的概述.
为患有有限BH能力的患者提供腹部MRI协议的实际指导.

主要方法:

审查已建立的自由呼吸技术:呼吸门,触发和辐射成像 (例如,金角辐射k空间获取).
讨论影响技术选择的因素:临床任务,技术因素,患者状况和用户偏好.
分析技术原则,临床应用和运动减轻策略的局限性.

主要成果:

自由呼吸技术提供了可行的替代方案,以保持呼吸T1W腹部MRI.
已建立的方法包括呼吸门,触发和辐射采集技术.
每种技术都有独特的优势和局限性,影响临床效用.

结论:

自由呼吸的T1W序列对于改善腹部MRI对于具有有限BH能力的患者至关重要.
了解和应用这些技术可以提高诊断信息和检查效率.
进一步开发和应用自由呼吸T1W成像技术对未来的腹部MRI具有前景.

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