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小肠疾病影像学诊断 PPT课件.pptx

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小肠疾病影像学诊断_PPT课件Case Discussion
Tang Chun Xiang
2016/5/25
Axial arterial phase
Axial venous phase
Coronal arterial phase
Sagittal venous phase
Crohn disease
CT and MRI
Useful for differentiating between active and fibrotic bowel strictures
Allowing visualization of the entire thickness of the bowel wall
Depicting extraenteric involvement
Providing more detailed prehensive information about the extent and severity
Introduction--Crohn disease
Comb sign
Fat halo sign
Bowel wall enhancement
Bowel wall thickness
Stricture and fistula
Mesenteric/intra-abdominal abscess (15%-20%) or phlegmon formation
Ulcerations and loss of haustration
Creeping fat
Imaging findings on CT and MRI

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