Pediatric radiology · 2018
Diffusion tensor imaging in acute pyelonephritis in children.
Сравнительное исследованиеСтатьяНазвание и аннотация: Перевод в очереди
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Lair Mickaël, Renaux-Petel Mariette, Hassani Adnan, Cruypeninck Yohann, Vasies Ioana, Liard Agnès, Dacher Jean-Nicolas, Vivier Pierre-Hugues
Аннотация
BACKGROUND: Diffusion-weighted imaging plays a key role in the imaging of acute pyelonephritis by MRI. However the use of respiratory triggering is challenging and time-consuming in children. Diffusion tensor imaging without respiratory triggering might provide satisfying images of the moving kidneys.
OBJECTIVE: To compare mean diffusivity diffusion tensor images obtained with free breathing with diffusion-weighted images obtained with respiratory triggering.
MATERIALS AND METHODS: Thirty-one children with suspected acute pyelonephritis underwent axial diffusion tensor imaging acquisition with free breathing and axial and coronal diffusion-weighted imaging acquisitions with respiratory triggering. We compared image quality and detection of nephritis between the two sequences.
RESULTS: Diffusion tensor imaging demonstrated agreement with diffusion-weighted imaging in all cases, with no difference in the detection of nephritis areas. The image quality was significantly better with diffusion tensor imaging (P<0.01).
CONCLUSION: Diffusion tensor imaging could replace diffusion-weighted imaging for diagnosis of acute pyelonephritis.
OBJECTIVE: To compare mean diffusivity diffusion tensor images obtained with free breathing with diffusion-weighted images obtained with respiratory triggering.
MATERIALS AND METHODS: Thirty-one children with suspected acute pyelonephritis underwent axial diffusion tensor imaging acquisition with free breathing and axial and coronal diffusion-weighted imaging acquisitions with respiratory triggering. We compared image quality and detection of nephritis between the two sequences.
RESULTS: Diffusion tensor imaging demonstrated agreement with diffusion-weighted imaging in all cases, with no difference in the detection of nephritis areas. The image quality was significantly better with diffusion tensor imaging (P<0.01).
CONCLUSION: Diffusion tensor imaging could replace diffusion-weighted imaging for diagnosis of acute pyelonephritis.