National Centre for Ultrasound in Gastroenterology, Department of Medicine, Haukeland University Hospital, 5021 Bergen, Norway.
National Centre for Ultrasound in Gastroenterology, Department of Medicine, Haukeland University Hospital, 5021 Bergen, Norway; Department of Clinical Medicine, University of Bergen, Bergen, Norway.
Eur J Radiol. 2014 Mar;83(3):438-41. doi: 10.1016/j.ejrad.2013.05.018. Epub 2013 Jun 13.
Ultrasound based elastography of the gastrointestinal tract may be a useful approach to improved tissue characterisation. Distinguishing malignant lesions from benign may be one useful application. Monitoring of inflammatory bowel lesions for degree of inflammation or fibrosis would be another clinically useful tool. The anatomy of the bowel, however, raises many challenges for strain or shear wave imaging due to thin structures, non-constant boundary conditions and intrinsic contractility. Pathological lesions tend to increase bowel wall thickness and may ease elastography imaging. Very few studies have addressed issues of bowel wall elastography so far, and both inflammatory and neoplastic lesions seem to increase tissue hardness in the bowel wall.
基于超声的胃肠道弹性成像可能是一种改善组织特征的有用方法。将恶性病变与良性病变区分开来可能是一种有用的应用。监测炎症性肠病的炎症或纤维化程度将是另一种临床有用的工具。然而，由于肠的结构较薄、边界条件不恒定以及固有收缩性，肠的解剖结构给应变或剪切波成像带来了许多挑战。病理性病变往往会增加肠壁厚度，从而使弹性成像更容易进行。到目前为止，很少有研究涉及肠壁弹性成像的问题，炎症和肿瘤性病变似乎都会增加肠壁组织的硬度。
