Quantitative chemical shift-encoded MRI is an accurate method to quantify marrow fat / 实用放射学杂志

Objective To validate a chemical shift-encoded MRI(CSE-MRI)water-fat imaging for quantifying vertebral marrow fat content using MRS as the reference standard.Methods MRS and CSE-MRI were performed to calculate proton density fat fraction(PDFF) in 83 subjects,including 41 normal bone mass,26 osteopenia and 16 osteoporosis.Eight participants were scanned three times with repositioning to assess the repeatability of CSE-MRI PDFF measurements.Agreements of intra-observer and inter-observer were evaluated by intraclass correlation coefficient(ICC).Linear regression,Bland-Altman 95% limit of agreement and Lin's concordance correlation coefficient were calculated.Results The repeatability for CSE-MRI PDFF measurements expressed as absolute precision error was 1.45%.PDFF was 62.1%±11.1% by MRS and 60.4%±10.1% by CSE-MRI in 83 subjects.There were significant differences in PDFF among the normal bone mass,osteopenia and osteoporosis groups after adjusting for age,years since menopause and body mass index (all P<0.001).The intra-and inter-rater reliability for duplicate measurements at CSE-MRI PDFF were more than 0.993.Pearson correlation coefficient was 0.979 and Lin's concordance correlation coefficient was 0.962.All data points calculated using the Bland-Altman method were within the limits of agreement.Inverse associations were observed between BMD (r=-0.560--0.710)and CSE-MRI-based PDFF,and between BMD (r=-0.539--0.706)and MRS-based PDFF in various groups.Conclusion CSE-MRI with multiple lipids peak model and T2?-correction is equally accurate in characterizing marrow fat content as MRS.

A case of swallowing disorder following radiotherapy on nasopharynx cancer / 临床耳鼻咽喉头颈外科杂志

To explore how to assess objectively the effect of swallowing treatment by a case study of one female patient with nasopharynx cancer after radiotherapy; the swallowing treatment include: dilatation of cricopharyngeal muscle (total 44 times), larynx raising method, tongue base exercises and acupuncture [main aperture:Jin-jin, Yuye(EX-HN12), Lianquan(CV23), Fengchi(GB20), Yamen(GV15), Baihui(GV20)], mainly using the videofluoroscopy to testify curative effect; the results demonstrated the duration of swallowing thick barium (270% w/v) including oral transit time plus pharyngeal transit time shortened 14.3%, distance of larynx raising increased 36.7%, oral and pharyngeal residue reduced 10% compared with that before treatment, all these data totally explained the swallowing function improved a little, but not significantly. The research testify the measuring parameter with videofluoroscopy can be used to assess the swallowing function and curative effect objectively.

Oropharyngeal Swallowing Disorders under Videofluoroscopic Swallowing Study / 中国康复理论与实践

@#Objective To explore oropharyngeal swallowing disorders with videofluoroscopic swallowing study (VFSS). Methods 16 patients with dysphagia accepted VFSS with 10 ml of thin barium meal (50% w/v), thick barium meal (270% w/v), biscuit coated with thick barium meal in single swallow. Their swallowing function was observed on the lateral and anterior/posterior planes, including: symmetry of pyriform sinuses, oral transit time, presence of pharyngeal delay, pharyngeal transit time, oral and pharyngeal residue, and presence of aspiration.Results 5 patients demonstrated oral swallowing disorder. 3 patients demonstrated pharyngeal swallowing disorders, that was pharyngeal delay which caused in aspiration after swallowing. 8 patients demonstrated oropharyngeal swallowing disorders, and 3 of them presented aspiration,2 patients were silent aspirators, 1 was aspiration before and 1 after swallowing. The aspiration time could not be judged from the videofluoroscopy in the other one. For 4 patients with aspiration, 3 were severe, with more than 25% of the bolus aspirated, and 1 aspirated less than 5%. Conclusion VFSS can be helpful to plan individual rehabilitation.

Clinical observation of the therapeutic effect of spine fine adjusting in treating cervical spondylotic radiculopathy and the conversion of cervical curvature / 中华中医药杂志

Objective:Discuss and analyze the mechanisms of spine fine adjusting through the observation of the therapeutic effect in treating cervical spondylotic radiculopathy(CSR)and the conversion of cervical curvature.Methods: Randomly divide 106 CSR patients into two groups–manipulation therapy group and traction therapy group,53 for each.Judge the therapeutic effect by evaluation scales and measure the cervical curvature on X-ray photographs.Results:The symptoms and physical signs of the patients in both two groups have been improved(P

CT Diagnosis for Peritoneum Metastatic Tumor / 实用放射学杂志

Objective To investigate characteristic of CT findings for peritoneal metastases.Methods The CT manitestations of 48 cases with pathologically proved peritoneal metastases were analysed. Results ①Ascites was seen in 32 cases, to make up 66.7%. ②Changes of omentum were found in 16 cases, to make up 33.3%; In it, cake sign of omentum were in 8 cases, nodular sign of omentum were in 5 cases, cystic sign of omentum were in 2 cases, opacity sign of omentum was in 1 case. ③Changes of mesentery were in 14 cases, to make up 29.2%. ④Thickening of the parieral peritoneurmar were in 12 cases, to make up 25%. ⑤Thickening of small intestine wall and moving of intestine were in 2 cases, to make up 4.2%.Conclusion CT is a valuable method for the diagnosis of peritoneum metastatic tumor.