Portosystemic shunt on CT during arterial portography: prevalence in patients with and without liver cirrhosis
Portosystemic shunt on CT during arterial portography: prevalence in patients with and without liver cirrhosis
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DOI：
10.1007/s00261-007-9196-2
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发表时间：
2008-01-01
影响因子：
--
通讯作者：
Minami, Tetsuya
中科院分区：
文献类型：
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作者：
Terayama, Noboru;Matsui, Osamu;Minami, Tetsuya
背景资料：方法：回顾性分析116例肝硬化门静脉造影（CTAP）患者（肝硬化70例，非肝硬化46例）的CT资料，分析CT在CTAP检查中发现的各种门体分流（PS）的情况。使用MDCT将导管放置在上级肠系膜动脉中进行CTAP。获得0.625和3.75或2.5 mm厚度的轴向CT图像。结果：57例（81%）患者回盲部静脉经右性腺静脉汇入右肾静脉或下腔静脉（IVC）。37例（53%）升结肠部分静脉经右肾被膜静脉汇入下腔静脉。在46例无肝硬化的患者中，CTAP显示右侧性腺静脉和右侧肾包膜静脉不透明者分别为22例（48%）和20例（43%）。右性腺静脉和右肾包膜静脉是最常见的门体分流途径。它们可能存在于生理状态中。
Background: To review various portosystemic shunts (PS) and to evaluate their prevalence by CT during arterial portography (CTAP) using a multidetector-row CT (MDCT).Methods: CTAP of 116 patients (liver cirrhosis 70 patients, non-liver cirrhosis 46 patients) was retrospectively reviewed. CTAP was performed with the catheter placed in the superior mesenteric artery using MDCT. Axial CT images of 0.625- and 3.75- or 2.5-mm thickness were obtained. Multiplanar reformation images and maximum intensity projection images were subjected to review.Results: A part of the veins in the ileocecal region drained into the right renal vein or the inferior vena cava (IVC) via the right gonadal vein in 57 patients (81%). A part of the veins of the ascending colon drained via the right renal capsular vein into the IVC in 37 patients (53%). In 46 patients without liver cirrhosis, the right gonadal and right renal capsular veins were opacified on CTAP in 22 patients (48%) and 20 patients (43%), respectively.Conclusions: Portosystemic shunts in retroperitoneum were frequently recognized on CTAP images in patients with liver cirrhosis. The right gonadal vein and the right renal capsular vein were the most frequent routes of the portosystemic shunts. They may exist in physiological condition.