Objective To explore the value of 31P magnetic resonance spectroscopy(31P MRS)for differential diagnosis of bone malignancy and inflammation.Methods Radiography.MRI and 31P MRs were performed on 20 bone malignancy patients,22 bone and soft-tissue inflarnmation patients and 32 healthy voluntecrs.The spectra were analyzed by measuring the areas under the peaks of various metabolites,and by calculating the pH from the Pi shift relative to PCr.The data were analyzed by one-way analysis of vailance (ANOVA).Results Analysis of the 31P MRS data suggested differences among the bone malignancy,the inflammation and the healthy group.The mean of PME/β-ATP ratio(1.24±0.37)in malignancy group increased significantly(P＜0.01).The mean of PDE/β-ATP(2.21.±0.37),Pi/β-ATP(1.46±0.43)in inflammation group was higher than that of the other two groups(P＜0.05),but the ratio of PME/β-ATP (0.19±0.10)wag not increasing.The LEP/T31P(0.10±0.02),PCr/T31P(0.45±0.03)and ATP/T31P (0.45±0.03)ratios in control group were significantly difierent from the two others(P＜0.01).The mean of intracellular pH in malignancy group was 7.45±0.16,higher than that in control group(7.05±0.06),and in inflaruination group(7.20±0.13)(P＜0.01).Conclusions The significant increase of PME and intraeellular pH is of great value in diagnosis of bone malignancy.Combined conventional radiography and MRI.31PMRs would be a simple,no-.invasive and effective diagnostic method.

Objective To investigate the preoperative evaluating accuracy of liver cancer using one-stop imaging quantification technique of 320 row CT and its clinical application value.Methods 42 patients with primary mass-forming liver cancers underwent one-stop imaging by 320 row CT,including enhancement imaging,perfusion quantification,liver volume quantification and angiogra-phy.After surgery,the volume of excised livers were measured.Liver function was also evaluated.Results After liver perfusion quantification,significant differences in hepatic artery flow,portal venous flow and hepatic artery perfusion index were found be-tween the 42 cases of mass-forming liver cancers and normal liver tissues (P <0.05).No significant difference was found between preoperative quantified liver volume and postoperative measured liver volume (P >0.05).The diagnostic accuracy by CT angiogra-phy was up to 40/42 cases (95.2%)through surgical verification.The diagnostic accuracy of large blood vessels and the first or sec-ond level branches were 100%.Conclusion The quantitative analysis of one-stop imaging technique by 320 rows CT can accurately evaluate the liver perfusion,angio-architecture and liver volume before surgery.

Objective To investigate the best techniques and postprocessing protocols for 31P MRS of femur and soft tissue.Methods The 31P MRS was performed on the 20 normal volunteers,using Siemens SONATA 1.5T MR scanner and heart/liver 31P surface coil.The age of volunteers ranged from 18 to 25 years old.Related data came from 40 voxels of the interested region were post-processed and compared by two different kinds of methods: automatically processed(group A) and interactively processed(group B).Results In group A,only 28 of 40 studies displayed well defined spectra,another 12 can't,and the shift of PCr deviated from 0.0 ppm;In group B,35 of 40 studies produced well defined spectra,another 5 can't,and the shift of PCr was near to 0.0 ppm,(p

To investigate the influence of Angelica Four Inverse Decoction on diabetic peripheral neuropathy (DPN) nerve conduction velocity and advanced glycation end products (AEGs), Cystatin C (Cys-C) and homocysteine (Hcy) levels, 78 cases of DPN patients admitted in our hospital from March 2015 to January 2017 were selected and divided into two groups by random number table method. The two groups adopted the same basic treatment, on the basis of which, the control group was added mecobalamin tablets treatment, while the observation group was given Angelica Four Inverse Decoction. The curative effect of Chinese medicine syndrome, the scores of toronto clinical scoring system (TCSS), nerve conduction velocity and the change of serum AEGs, Cys-C and Hcy levels before and after treatment were recorded and compared between the two groups and then the safety of medicine were evaluated between the two groups. 4 weeks after the treatment, the total effective rate of the observation group was 89.7％, significantly higher than 71.8％ of the control group (P ＜ 0.05) . Compared with those before receiving treatment, the SNCV and MNCV values of the common peroneal nerve and median nerve both significantly increased in the two groups 4 weeks after the treatment (P ＜ 0.01); the improvement of nerve conduction velocity of the observation group was significantly better than that of the control group (P ＜ 0.01) . 4 weeks after the treatment, TCSS score and serum AEGs, Cys-C, Hcy levels were all significantly lower than those before receiving the treatment in the two groups (P ＜ 0.01); compared with that of the control group in the same time period, the improvement effect of TCSS score and serum AEGs, Cys-C, Hcy levels were more significant in the observation group 4 weeks after the treatment (P ＜ 0.01) . There were no obvious adverse reactions in the two groups. As a result, Angelica Four Inverse Decoction applied to DPN patients can more effectively relieve clinical symptoms and signs, improve nerve conduction velocity, reduce the level of AEGs, and improve microcirculation with remarkable curative effect and high safety.