[Clinical study of transcatheter arterial chemoembolization plus radiofrequency ablation in hepatocellular carcinoma by magnetic resonance imaging and functional diffusion-weighted imaging].

Objective: To evaluate the apparent diffusion coefficient (ADC) value features of the lesions after transcatheter arterial chemoembolization (TACE) plus radiofrequency ablation in hepatocellular carcinoma (HCC) with 3.0T magnetic resonance imaging (MRI) and diffusion-weight imaging (DWI) and analyze the value of 3.0T DWI in detecting the pathological lesion features of post-TACE plus radiofrequency ablation in HCC.

[Computed tomography and magnetic resonance imaging features of desmoid-type fibromatosis: comparison with the pathological findings].

Objective: To explore the computed tomography (CT) and magnetic resonance imaging (MRI) features of desmoid-type fibromatosis, and improve the diagnostic accuracy and understanding of the disease.

Methods: The CT and MRI features of 18 cases of surgically and pathologically confirmed desmoid-type fibromatosis were reviewed retrospectively. Among the patients, 10 received CT pre- and post-contrast scanning, and 8 patients had MRI pre- and post-contrast scanning.

[Effects of echo time on the liver fat quantification using proton magnetic resonance spectroscopy].

This study was aimed to evaluate the effects of different echo time (TE) on the liver fat quantification using proton magnetic resonance spectroscopy (1H-MRS). Liver 1H-MRS was performed on 24 adult male wistar rats on a 1.5 T superconductor MR scanner.

[Efficacy comparison between transplanting microenvironmental induced and non-induced bone marrow mesenchymal stem cells in ischemic rat hearts].

Objective: To compare the efficacy of transplanting bone marrow mesenchymal stem cell (BMSC) or microenvironmental induced BMSC (iBMSC) into the ischemic myocardium of rats with myocardial infarction.

Methods: iBMSC was defined as BMSC co-cultured with myocardial cells for 2 weeks. The stem cells or equal volume PBS were injected into ischemic border zone 1 wk after experimental infarction.

[A comparative study of diffusion-weighted magnetic resonance imaging and pathological findings of liver fibrosis in rabbits].

Objective: To investigate the alteration of apparent diffusion coefficient (ADC) in diffusion-weighted MR imaging (MR-DWI) of liver fibrosis and its pathological basis in rabbits.

Methods: Five rabbits in the control group and 22 with experimental liver fibrosis induced by transperitoneal injection of carbon tetrachloride (CCl4) were examined with MR-DWI. Diffusion-weighted SE EPI sequence with a relatively high b factor (b=600 s/mm2) was used to measure the ADC.

In vitro labeling of mesenchymal stem cells with superparamagnetic iron oxide by means of microbubble-enhanced US exposure: initial experience.

Purpose: To investigate the feasibility of magnetically labeling stem cells with superparamagnetic iron oxide (SPIO) by means of microbubble-enhanced ultrasonographic (US) exposure (MUE) and to study the effects of this approach--without secondary transfection agents--on the viability, proliferation activity, and differentiation capability of MUE-labeled stem cells.

Materials And Methods: Institutional review board approval was obtained for this study. Human mesenchymal stem cells (MSCs) ([1 to 2] x 10(6)/mL) were studied in four experiment groups: sham exposure to US with microbubbles and SPIO (group A), exposure to US with SPIO but without microbubbles (group B), exposure to US with microbubbles and SPIO (group C), and sham exposure to US without SPIO or microbubbles (group D).

[In vivo magnetic resonance imaging tracking of transplanted adipose-derived stem cells labeled with superparamagnetic iron oxide in rat hearts].

Objective: To investigate the feasibility of in vivo magnetic resonance imaging (MRI) tracking of transplanted adipose-derived stem cells (ADSCs) labeled with superparamagnetic iron oxide (SPIO) in rat heart.

Methods: ADSCs were labeled with poly-L-lysine (PLL)-SPIO complexes. Intracellular iron uptake was identified by Prussian blue stain and transmission electromicroscopy.

Gastric bare area and left adrenal gland involvement on abdominal computed tomography and their prognostic value in acute pancreatitis.

To demonstrate the CT manifestations of gastric bare area involvement (GBAI) and left adrenal gland involvement (LAGI) in acute pancreatitis (AP) and evaluate their prognostic value. From January 2003 to December 2006, CT examinations of 116 patients with AP were retrospectively reviewed. There were 34 (29.