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首页> 外文期刊>Abdominal radiology. >Endoluminal contrast for abdomen and pelvis magnetic resonance imaging
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Endoluminal contrast for abdomen and pelvis magnetic resonance imaging

机译：腔内造影剂用于腹部和骨盆磁共振成像

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摘要

Magnetic resonance (MR) imaging of the abdomen and pelvis can be limited for assessment of different conditions when imaging inadequately distended hollow organs. Endoluminal contrast agents may provide improved anatomic definition and detection of subtle pathology in such scenarios. The available routes of administration for endoluminal contrast agents include oral, endorectal, endovaginal, intravesicular, and through non-physiologic accesses. Appropriate use of endoluminal contrast agents requires a thorough understanding of the clinical indications, available contrast agents, patient preparation, and interaction of the contrast agent with the desired MR imaging protocol. For example, biphasic oral enteric contrast agents are preferred in MR enterography as their signal properties on T1- and T2-weighted imaging allow for evaluation of both intraluminal and bowel wall pathology. In specific situations such as with MR enterography, MR defecography, and accurate local staging of certain pelvic tumors, the use of an endoluminal contrast agent is imperative in providing adequate diagnostic imaging. In other clinical scenarios, the use of an endoluminal contrast agent may serve as an indispensable problem-solving tool.
机译：腹部和骨盆的磁共振（MR）成像在对不充分张开的中空器官成像时可能会受到限制，无法评估不同的状况。在这种情况下，腔内造影剂可以提供改善的解剖学定义和细微病理学检测。腔内造影剂的可用给药途径包括口服，直肠内，阴道内，囊内和通过非生理途径。适当使用腔内造影剂需要彻底了解临床适应症，可用的造影剂，患者准备以及造影剂与所需MR成像方案的相互作用。例如，双相口服肠造影剂在MR小肠造影中是优选的，因为它们在T1和T2加权成像上的信号特性允许评估管腔内和肠壁病理。在特定情况下，例如MR小肠造影，MR粪便检查和某些骨盆肿瘤的准确局部分期，必须使用腔内造影剂才能提供足够的诊断影像。在其他临床情况下，腔内造影剂的使用可以作为必不可少的问题解决工具。

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