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首页> 外文期刊>Radiology >MR measurements of mesenteric venous flow: prospective evaluation in healthy volunteers and patients with suspected chronic mesenteric ischemia.
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MR measurements of mesenteric venous flow: prospective evaluation in healthy volunteers and patients with suspected chronic mesenteric ischemia.

机译：肠系膜静脉血流的MR测量：对健康志愿者和疑似慢性肠系膜缺血患者的前瞻性评估。

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PURPOSE: To quantify portal vein (PV) and superior mesenteric vein (SMV) flow before and after a standardized meal in healthy volunteers and to prospectively evaluate patients with a clinical suspicion of chronic mesenteric ischemia on the basis of magnetic resonance (MR) measurement of flow in the mesenteric venous system in volunteers. MATERIALS AND METHODS: Cine phase-contrast flow measurements were acquired in 10 asymptomatic volunteers and in 10 patients. RESULTS: In volunteers, the difference between the fasting and post-prandial flows in the SMV and PV was significant (P < .001), with a peak flow augmentation of 245% +/- 74 and 70% +/- 29, respectively. Postprandial augmentation of peak flow in the SMV was significantly less in patients with mesenteric ischemia compared with volunteers (64% +/- 28; P = .02). SMV flow augmentation in patients without mesenteric ischemia did not differ significantly from that in volunteers (206% +/- 36; P = .31). CONCLUSION: Measurement of postprandial flow augmentation in the SMV with MR imaging shows promise as a noninvasive screening test for chronic mesenteric ischemia.
机译：目的：在健康志愿者中，在标准化进餐前后量化门静脉（PV）和肠系膜上静脉（SMV）的流量，并根据磁共振（MR）测量的临床前瞻性评估患有慢性肠系膜缺血临床怀疑的患者在志愿者的肠系膜静脉系统中流动。材料与方法：在10名无症状志愿者和10名患者中获得了电影相衬血流测量。结果：在志愿者中，SMV和PV中空腹和餐后流量之间的差异显着（P <.001），峰值流量分别增加了245％+/- 74和70％+/- 29 。与自愿者相比，肠系膜缺血患者的餐后SMV峰值流量增加明显更少（64％+/- 28; P = .02）。无肠系膜缺血患者的SMV流量增加与志愿者无明显差异（206％+/- 36; P = .31）。结论：MR成像测量SMV餐后血流增加显示出有望作为慢性肠系膜缺血的非侵入性筛查试验。

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