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Usefulness of Y-shaped sheaths in CT angiography for examination of liver tumors

World Journal of Gastroenterology 2010年第37期16卷 4704-4708页

作者： Toru Ishikawa kazuo higuchi Tomoyuki Kubota Kei-ichi Seki Terasu Honma Toshiaki Yoshida Takeo Nemoto Keiko Takeda Tomoteru Kamimura Department of Gastroenterology and Hepatology Saiseikai Niigata Second Hospital Department of Radiology Saiseikai Niigata Second Hospital

AIM: To conduct a single-stage, combined computed tomography (CT) arterial portography (CTAP) and CT arteriography (CTA) imaging operation, we used Y-shaped sheaths with 2 valves, which allowed the insertion of 2 catheters simultaneously. METHODS: Of 1254 patients who underwent abdominal angiography for transarterial embolization and/or intraarterial chemotherapy in our department from May 2002 to November 2009, 664 patients in whom Y-shaped sheaths with 2 valves were used underwent CT angiography using a combination of CTA and CTAP. The Seldinger method was used to insert a 10 cm Y-shaped short sheath with 2 valves into the femoral artery. Under radiographic guidance, a 3.2 French (Fr) catheter was placed in the celiac artery or proper hepatic artery, and a second 3.2 Fr catheter was then placed distal to the inferior pancreaticoduodenal artery of the superior mesenteric artery. CTAP was then performed followed by CTA 10 min later. Photographs were taken during the early and late phases of the ***: Insertion of 3.2 Fr catheters was not possible in 6 of 664 (0.9%) patients with strong curvature of the femoral artery and 4 of 664 (0.6%) patients with strong curvature of the abdominal aorta. In addition, performing CTAP and CTA as a single-stage combined intervention was not possible in 14 of 664 (2.1%) patients whose right hepatic artery originated from the superior mesenteric artery and in 8 of 664 (1.2%) patients whose left hepatic artery branched from the left gastric artery. There were no sheath-related complications such as those related to arterial dissection or hemostasis. CONCLUSION: Although transfers to and from the CT room were necessary for anatomically variant patients, CT angiography using the Y-shaped sheath for combined CTAP and CTA was considered useful.

关键词： Computed tomography angiography Interventional radiology Liver tumors

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Selenoprotein P protects the cornea against oxidative stress

Selenoprotein P protects the cornea against oxidative stress

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第14届国际自由基学术大会

作者： Akihiro higuchi Kazuhiko Takahashi kazuo Tsubota 6N9 Research Park Keio University35 Shinano-machi Shinjuku-ku Tokyo160-8582 Japan Department of Nutritional Biochemistry School of Pharmacy Hokkaido Pharmaceutical University

＜正＞Purpose. Since autologous serum is useful for the treatment of severe dry eye, serum components may be a potential candidate for the treatment of dry eye. We identified selenoprotein P （SeP） as a new candidate from the serum, and tried to confirm the efficacy of SeP on the treatment of dry eye by using dry eye model rat. Methods. Dry

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