[The Role of Whole Body DWI in the Evaluation of Bone Disease in Multiple Myeloma]

Zhongguo Shi Yan Xue Ye Xue Za Zhi. 2022 Apr;30(2):501-505. doi: 10.19746/j.cnki.issn.1009-2137.2022.02.029.
[Article in Chinese]

Abstract

Objective: To explore the characteristics of ADC value changes in DWI of newly diagnosed symptomatic MM patients and its correlation with R-ISS stage.

Methods: The data of 148 newly diagnosed symptomatic MM patients treated by whole-body DWI scan at The First Affiliated Hospital of Soochow University from June 2016 to June 2019 were selected and retrospectively analyzed and 30 cases of age-matched healthy people were selected as controls. The differences of ADC values between the patients in normal control group, DWI- group and DWI+ group were compared, and the relationship between ADC values and R-ISS stage in MM patients was compared.

Results: The plasma cell percentage of the patients in DWI+ group was higher than those in DWI- group. ADC values of vertebra, sternum, rib, pectoral girdle, pelvic girdle of the patients in DWI+ group were significantly higher than those in DWI- group and normal control group. The ADC values of each part of the patients in DWI- group were higher than those in normal control group. ADC values of sternum, rib and pectoral girdle in the patients at R-ISS stage III were higher than those at R-ISS stage I and II, while, there was no statistical difference between R-ISS stage I and II groups. And there was no significant difference in ADC values of other bone parts such as vertebra and pelvic girdle in patients at R-ISS stage Ⅰ-Ⅲ.

Conclusion: DWI+ in MM patients is related to higher tumor invasion. The ADC values of the DWI+ group are higher than those of the DWI- group; the bone ADC values of the DWI- patients are still higher than the normal ones. And there is a certain relationship between ADC value and R-ISS stage.

题目: 全身DWI在多发性骨髓瘤骨病评估中的作用.

目的: 探讨初诊症状性多发性骨髓瘤(MM)患者DWI检查的ADC值变化特征及其与R-ISS分期的相关性.

方法: 回顾性分析2016年6月至2019年6月于苏州大学附属第一医院接受全身DWI检查的初诊症状性MM患者148例的资料,另选取年龄匹配的健康人30例作为对照,比较正常对照、DWI- 和DWI+组3组人群的ADC值差异,并进一步研究MM患者的ADC值与R-ISS分期的相关性.

结果: DWI+ 组患者的浆细胞百分比高于DWI- 组。DWI+ 组患者的椎骨、胸骨、肋骨、上肢带骨、下肢带骨ADC值高于DWI- 和正常对照组,DWI- 组各部位ADC值均高于正常对照组。临床R-ISS Ⅲ期患者的胸骨、肋骨、上肢带骨ADC值高于临床R-ISSⅠ和Ⅱ期患者的ADC值,而R-ISSⅠ期和Ⅱ期患者组之间无统计学差异。R-ISS分期Ⅰ-Ⅲ期患者的其他骨部位如椎骨、下肢带骨ADC值均无明显统计学差异.

结论: MM患者DWI+ 和高肿瘤浸润有关。DWI+ 组ADC值高于DWI- 组,DWI- 患者骨质ADC值仍高于正常者,且ADC值与R-ISS分期存在一定的相关性.

Keywords: R-ISS stage; apparent diffusion coefficient; multiple myeloma; whole body diffusion weighted imaging.

MeSH terms

  • Bone Diseases*
  • Diffusion Magnetic Resonance Imaging
  • Humans
  • Multiple Myeloma* / diagnostic imaging
  • Retrospective Studies
  • Whole Body Imaging