计算机科学 ›› 2019, Vol. 46 ›› Issue (8): 321-326.doi: 10.11896/j.issn.1002-137X.2019.08.053

所属专题: 医学图像

• 图形图像与模式识别 • 上一篇    下一篇

一种医学肾动态显像自动化定量评估方法

柴锐, 薛凡, 曾建潮, 秦品乐   

  1. (中北大学大数据学院 太原030051)
  • 收稿日期:2018-07-03 出版日期:2019-08-15 发布日期:2019-08-15
  • 通讯作者: 曾建潮(1963-),男,博士,教授,主要研究方向为复杂系统与群体智能、智能计算、复杂系统的健康管理等,E-mail:xfxt4820344@163.com
  • 作者简介:柴锐(1985-),男,博士,讲师,CCF会员,主要研究方向为医学图像处理、机器视觉、三维重建,E-mail:fanxuefx@126.com;薛凡(1992-),女,硕士生,主要研究方向为医学影像、深度学习、机器学习;秦品乐(1978-),男,博士,副教授,CCF会员,主要研究方向为大数据、机器视觉、三维重建
  • 基金资助:
    山西省自然基金(2015011045)

Automatic Quantitative Evaluation Approach for Medical Renal Dynamic Imaging

CHAI Rui, XUE Fan, ZENG Jian-chao, QIN Pin-le   

  1. (Big Data College,North University of China,Taiyuan 030051,China)
  • Received:2018-07-03 Online:2019-08-15 Published:2019-08-15

摘要: 目前,临床上肾动态显像评估肾功能的方法过多依赖于手动获取感兴趣区域(Region of Interest,ROI),时间效率较低。针对这一问题,提出一种肾动态显像自动化定量评估的方法。首先,对肾动态显像不同阶段的图像进行预处理;其次,利用改进水平集模型获取肾功能成像中肾脏的ROI,并通过形态学方法得到本底ROI,再对肾血流灌注成像中主动脉的ROI进行定位和获取;最后,结合Gates法计算分肾、总肾的肾小球滤过率(Glomerular Filtration Rate,GFR),根据ROI区域内的放射性计数绘制时间-放射性曲线,实现一体化、自动化的肾功能评估。临床实验结果表明,所提自动化评估方法能够在较短的时间内提升自动化水平,并提高评估精度,该方法可以为临床诊断和辅助治疗提供有效帮助。

关键词: 感兴趣区域, 肾动态显像, 肾小球滤过率, 自动化定量评估

Abstract: The evaluation method of renal function in clinical renal dynamic imaging depends too much on manual acquisition of ROI (Region of Interest)and has low time efficiency.In order to solve this problem,this paper proposed anautomatic quantitative assessment method for medical renal dynamic imaging.Firstly,the images of renal dynamic imaging at different stages are pretreated.Secondly,an improved level set model is utilized to obtain the ROI of the renal function imaging.The ROI is obtained by morphological methods,then the ROI of the aorta in the renal perfusion imaging is located and obtained.Finally,GFR(Glomerular Filtration Rate) is calculated according to the Gates method,and the time-radioactivity curve is plotted based on the radioactivity counts in ROI,so as to achieve integrated and automated assessment for renal function.The results of clinical trials show that the proposed automatic assessment method can improve the automation level in a short period of time and raise the assessment accuracy,which provide effective help for clinical diagnosis and adjuvant treatment

Key words: Automatic quantitative assessment, Glomerular filtration rate, Region of interest, Renal dynamic imaging

中图分类号: 

  • TP391.41
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