|
测量腰椎 股骨近端骨密度中若干问题研究 |
| |
［摘要］ 目的 通过应用双能X线骨密度仪（DXA）测量腰椎和股骨骨密度（BMD）中几技术问题研究，指出在测量和分析结果时值得注意的几个问题。方法 比较同一选择标准束和薄型束扫描股骨近端结果的不同;对腰椎各椎体间T评分差＞1 SD，不同分析方法的差别;列举1例患者比较股骨颈感兴趣区微小变化对诊断结果的影响。结果 对瘦体型患者薄型束扫描骨边缘比标准束完整，各部位BMD值有增加，在大粗隆部位二者T评分相差最大可超过3 SD;正常人相邻椎体间T评分差＜SD，患者1 L3和L4相差2.2 SD，患者2 L2和L3相差1.3 SD，患者3 L2和L3相差1.5 SD，相邻椎体间差均＞1 SD;股骨颈感兴趣区中心位置在X轴线上从124变为120微小移动,股骨颈的T评分从-2.7 SD增至-2.4 SD。结论 正确测量和分析技术对获得可靠诊断结果至关重要，需要进一步认真研究。
［关键词］ 测量；股骨；骨密度
Research on measurement technology of bone mineral density at lumber and hip
CUI Xia,QIN Lin-lin,LIU Hong-e,et al.Nuclear Medicine Department,China-Japan Friendship Hospital,Beijing 100029,China
［Abstract］ Objective Through research on measurement technology of bone mineral density（BMD）at lumber and hip,point out some important technology in measurement and analysis.Methods The different result of scan at hip were compared using standard and thin X ray for patients.When T score different of close two lumbers were large than 1 SD,the different result was reported and reason was analyzed.When slight moving ROI position of neck,different results of BMD and T score at neck,trocant and total hip were compared.Results Bone edge was more clear and BMD of average parts at hip were larger when using thin X ray than standard X-ray for thin patients.T score different of close two lumbers was less 1SD for healthy subjects.T score different of L3 and L4 was 2.2SD for patient 1,T score different of L2 and L3 was 1.3 SD for patient 2.T score different of L2 and L3 was 1.5 SD for patient 3.ROI position at neck slight was moving from 120 to 124 of X axis.T score at neck was changed from -2.4 to -2.7 SD.Conclusion Correct measurement and analysis technology is very important for diagnosing osteoporosis,more technology key needed further discussed.
［Key words］ measurement;femur;bone mineral density
骨密度测量广泛应用在对骨折发生率的预测中，双能X线骨密度仪（DXA）是国际公认精[1] [2] [3] 下一页
上一个医学论文： 缬沙坦治疗高血压对男性性功能的影响
下一个医学论文： 恶性肿瘤患者念珠菌感染的主要临床特征分析
|
|
|
|
|
|
|
您现在的位置： 绿色健康网 >> 医学论文 >> 儿科论文 >> 正文