| 邢金子,刘爱连,王艺,董越,宁殿秀,宋清伟.1.5T磁共振插入有限脉冲响应技术观察脾静脉与肠系膜上静脉在门静脉内的分流及走行[J].中国医学影像技术,2011,27(6):1231~1234 |
| 1.5T磁共振插入有限脉冲响应技术观察脾静脉与肠系膜上静脉在门静脉内的分流及走行 |
| Interpolated finite impulse response sequence in observation of the shunt and course of hepatic portal vein from splenic vein and superior mesenteric vein with 1.5T MR |
| 投稿时间：2010-10-29 修订日期：2011-02-25 |
| DOI： |
| 中文关键词: 磁共振成像 插入有限脉冲响应 门静脉 脾静脉 肠系膜静脉 |
| 英文关键词:Magnetic resonance imaging Interpolated finite impulse response Portal vein Splenic vein Mesenteric veins |
| 基金项目: |
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| 中文摘要: |
| 目的 探讨1.5T MR插入有限脉冲响应(IFIR)序列评估脾静脉(SV)与肠系膜上静脉(SMV)在门静脉(PV)内的分流及走行的可行性。 方法 通过3种不同的饱和带预加方式对36位受试者进行3次冠状位IFIR序列扫描。在ADW 4.4工作站上行MIP重建,观察SV及SMV在PV中的分流、走行情况,并对其进行分流清晰度及走行分型的评估。 结果 方式1:36位受试者均示SV与SMV共同供血PV,不能分辨SV与SMV血流的分流及走行。方式2:36位受试者中20人(20/36,55.56%)清晰分辨,8人(8/36,22.22%)隐约可辨,8人(8/36,22.22%)无法分辨出SV在PV中的分流与走行;28位可分辨者中,12人SV走行于PV中央,3人走行于PV周边,10人走行于PV上半部,3人走行于PV下半部。方式3:36位受试者分流清晰度与预饱和方式2相同;28人可分辨者中,3人SMV血流走行于PV中央,12人走行于PV周边,10人走行于PV下半部,3人走行于PV上半部。 结论 1.5T MR IFIR序列无需造影增强即可清晰观察SV与SMV在PV中的分流及走行。 |
| 英文摘要: |
| Objective To assess the feasibility of interpolated finite impulse response (IFIR) sequence in observation of the shunt and course of splenic vein (SV) and superior mesenteric vein (SMV) in portal vein (PV) with 1.5T MR. Methods Totally 36 subjects underwent MRI of coronal IFIR sequence 3 times. Three types of presaturation band were used. MIP reconstruction was made on ADW 4.4 workstation to observe and evaluate the shunt and course of SV and SMV in PV. Results Type 1: Both SV and SMV supplied blood to PV, but the shunt and course could not be clearly showed in all 36 subjects. Type 2: The shunt and course of PV and SMV from SV were clearly showed in 20 (20/36, 55.56%) subjects, faintly showed in 8 (8/36, 22.22%) subjects, but unrecognized in 8 (8/36, 22.22%) subjects. In the identifiable 28 subjects, blood flow from SV of 12 subjects flowed in central of PV, 3 in peripheral, 10 in superior and 3 in inferior part of PV. Type 3: The shunt definition was similar to that of type 2. In the identifiable 28 subjects, blood flow from SMV of 3 subjects flowed in central, 12 in peripheral, 10 in superior and 3 in inferior part of PV. Conclusion It is feasible to show shunt and course of PV from SV and SMV on 1.5T MR system using IFIR sequence without contrast media. |
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