扩散加权成像下恶性与良性腹部淋巴结的比较。
Comparison between malignant and benign abdominal lymph nodes on diffusion-weighted imaging.
作者信息
Akduman E Isin, Momtahen Amir Javad, Balci N Cem, Mahajann Namit, Havlioglu Necat, Wolverson Michael K
机构信息
Department of Radiology, Saint Louis University Hospital, 3635 Vista Avenue, St. Louis, MO 63110, USA.
出版信息
Acad Radiol. 2008 May;15(5):641-6. doi: 10.1016/j.acra.2007.12.023.
RATIONALE AND OBJECTIVES
The purpose of this study is to review the apparent diffusion coefficient (ADC) values of benign and metastatic abdominal lymph nodes on diffusion-weighted imaging (DWI).
MATERIALS AND METHODS
Twenty-eight patients with a total of 40 benign (20 patients) and 16 malignant (8 patients) lymph nodes who underwent DWI MRI of the abdomen (b = 0.600) were enrolled in the study. ADC values of the lymph nodes were measured and comparison was made between benign and malignant groups.
RESULTS
Mean ADC value of lymph nodes was 2.38 +/- 0.29 and 1.84 +/- 0.37 x 10(-3) mm(2)/sec in the benign and malignant groups, respectively. There was a significant statistical difference between the ADC values of benign and malignant lymph nodes (P < .0005).
CONCLUSION
A wide range of ADC values exist in patients with metastatic abdominal lymph nodes, with a tendency of higher ADC values in benign lymph nodes.
原理与目的
本研究旨在回顾扩散加权成像（DWI）上腹部良性及转移性淋巴结的表观扩散系数（ADC）值。
材料与方法
本研究纳入28例患者，共发现40个良性淋巴结（20例患者）及16个恶性淋巴结（8例患者），这些患者均接受了腹部DWI MRI检查（b = 0.600）。测量淋巴结的ADC值，并对良性组和恶性组进行比较。
结果
良性组和恶性组淋巴结的平均ADC值分别为2.38 +/- 0.29和1.84 +/- 0.37 x 10(-3) mm(2)/sec。良性和恶性淋巴结的ADC值之间存在显著统计学差异（P <.0005）。
结论
转移性腹部淋巴结患者的ADC值范围较广，良性淋巴结的ADC值有更高的趋势。
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