Feasibility of synthetic MRI in knee imaging in routine practice

Acta Radiologica Open
Sana BoudabbousMaria Isabel Vargas

Abstract

Synthetic magnetic resonance (MR) is a method allowing reduction of examination time and access to quantitative imaging. This study sought to assess the image quality and diagnostic accuracy of synthetic magnetic resonance imaging (MRI) compared to standard MRI in patients with knee pain. In total, 22 patients underwent standard 1.5 knee MRI with an added synthetic sequence. Quantitative T1, T2, and proton density (PD) images were generated synthetically; T1, PD, and short tau inversion recovery (STIR) weighted images were created with chosen echo time (TE), repetition time (TR), and inversion time (TI). Two blinded musculoskeletal radiologists evaluated the overall sequence quality, visualization of anatomic structures, and presence of artifacts using a 3-point score. The synthetic sequence was acquired in 39% less time than the conventional MRI. Synthetic PD, T1, and STIR images were rated fair (2%, 5%, and 2%, respectively) or good quality (98%, 95%, and 98%, respectively), despite the presence of popliteal artery artifacts. Cartilage and meniscus were well visualized in all cases. Anterior cruciate ligament visualization was rated poor in 7%, 14%, and 30% of PD, STIR, and T1 images, respectively. Our pilot study confirmed t...Continue Reading

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Citations

Aug 4, 2018·AJNR. American Journal of Neuroradiology·M I VargasS Boudabous
Feb 4, 2021·AJR. American Journal of Roentgenology·Jan FritzFilippo Del Grande
Feb 5, 2021·Magnetic Resonance in Medical Sciences : MRMS : an Official Journal of Japan Society of Magnetic Resonance in Medicine·Tomoyuki FujiokaUkihide Tateishi
Jun 4, 2021·Journal of Magnetic Resonance Imaging : JMRI·Qian CaiHuanjun Wang

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Software Mentioned

SyMRI
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