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• Clinical Article •
The initial study of interpolated finite impulse response sequence in portal system changes after hepatic cirrhosis on 1.5 T MRI
XING Jin-zi  LIU Ai-lian  WANG Yi  DONG Yue  NING Dian-xiu 

DOI:10.3969/j.issn.1674-8034.2011.05.008.


[Abstract] Objective: To study the feasibility and clinical significance of IFIR sequence in portal system changes after hepatic cirrhosis on 1.5 T MR.Materials and Methods: Forty patients with hepatic cirrhosis and 20 normal volunteers (control group) were scanned on GE signa 1.5 T HD echospeed MRI with 3 types of presaturation band. MIP reconstruction was done on ADW 4.4 workstation to evaluate the branches and trunk of portal vein; measure the diameters of portal vein (PV), splenic vein (SV), superior mesenteric vein (SMV) and splenic volume, and those data were compared with control group. The data were also compared with different graded patients (A, B, C grade) with the grading of Child-Pugh; and the collateral circulation (CC) to assess the relationship with the splenic volume were observed.Results: In the 40 cases of hepatic cirrhosis patients, 6 cases were out of group (3 cases in splenectomy, 3 in portal system thrombosis). Among 34 patients, 25 cases (74%, 25/34) belong to high grade (3-4 grade) and 9 cases (26%, 9/34) were low grade (1~2 grade). The diameters of PV, SV, SMV and splenic volume in patients group were significantly larger than those in controls (P<0.05). The PV diameter showed a descent tendency (P<0.05) with the damage of liver function, while the diameter of SV, SMV and splenic volume showed an increased tendency (P<0.05). Among 34 patients, 22 cases (65%) were present of collateral circulation, and the splenic volume among those was larger than that of patients in no-CC groups (P<0.05).Conclusion: It is feasible to show the branches and main trunk of portal vein and assess the hemodynamics of portal vein system using IFIR sequence without contrast media on 1.5 T MRI.
[Keywords] Cirrhosis；Portal venous system；Interpolated finite impulse response；Magnetic resonance imaging

XING Jin-zi Department of Radiology, The First Affiliated Hospital of Dalian Medical University, Dalian 116011, China

LIU Ai-lian* Department of Radiology, The First Affiliated Hospital of Dalian Medical University, Dalian 116011, China

WANG Yi Department of Radiology, Dalian Friendship Hospital, Dalian 116011, China

DONG Yue Department of Radiology, The First Affiliated Hospital of Dalian Medical University, Dalian 116011, China

NING Dian-xiu Department of Radiology, The First Affiliated Hospital of Dalian Medical University, Dalian 116011, China

*Correspondence to: Liu AL, E-mail: cjr.liuailian@vip.163.com

Conflicts of interest   None.

Received  2011-03-25
Accepted  2011-05-11
DOI: 10.3969/j.issn.1674-8034.2011.05.008
DOI:10.3969/j.issn.1674-8034.2011.05.008.

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