Increased iron deposition of deep cerebral gray matter structures in hemodialysis patients: A longitudinal study using quantitative susceptibility mapping.

Background: The cerebral iron overload in hemodialysis patients has been reported in a previous study, in which the evaluation of the changes in iron content could be affected by the cross-sectional analysis.

Purpose: To investigate the longitudinal changes of iron deposition in hemodialysis patients using quantitative susceptibility mapping (QSM) and correlate these findings with the longitudinal changes of neurocognitive function and clinical factors.

Study Type: Prospective; longitudinal.

Multiparametric functional magnetic resonance imaging for evaluation of hepatic warm ischemia-reperfusion injury in a rabbit model.

Background: To assess the feasibility of noninvasive and quantitative evaluation of hepatic pathophysiological changes in rabbit hepatic warm ischemia-reperfusion injury (WIRI) models by using intravoxel incoherent motion (IVIM), diffusion tensor imaging (DTI) and blood oxygen level dependent (BOLD) MRI.

Methods: Twenty rabbits were randomly divided into hepatic WIRI model group and sham-operation group (n = 10 for each group). Hepatic WIRI was induced in rabbit by occluding hepatic inflow for 30 min and reperfusion for 6 h.

[The effects of nucleoside analogues on hepatitis B virus in hepatic lymph nodes of hepatitis B virus-associated liver transplantation recipients].

Objective: To investigate the effects of nucleoside analogues on hepatitis B virus (HBV) in hepatic lymph nodes of hepatitis B related liver transplantation recipients who were hepatitis B surface antigen (HBsAg) positive but negative for serum HBV DNA.

Methods: From June 2010 to March 2011, thirty-six cases of hepatitis B related liver transplantation recipients [32 males, 4 females, average age (54 ± 7) years] were divided into drug treatment group and non-drug treatment group according to the utility of nucleoside analogues. Drug treatment group was divided into two subgroups: drug treatment > 3 months group and drug treatment ≤ 3 months group.

Orally administered lemon/orange juice improved MRCP imaging of pancreatic ducts.

Background: The aim of this study was to determine the effectiveness of oral administration of lemon/orange juice in improving the visualization of pancreatic ducts on MRCP.

Materials And Methods: MRCP images were generated before and at every 15 min for 90 min after oral administration of lemon/orange juice in a dose of 2 ml/kg in 20 volunteers and 26 patients. The pre- and post-administration images were compared and analyzed qualitatively and quantitatively.