Akduman E Isin, Momtahen Amir Javad, Balci N Cem, Mahajann Namit, Havlioglu Necat, Wolverson Michael K
Department of Radiology, Saint Louis University Hospital, 3635 Vista Avenue, St. Louis, MO 63110, USA.
Acad Radiol. 2008 May;15(5):641-6. doi: 10.1016/j.acra.2007.12.023.
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).
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.
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).
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.
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。
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。
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）。
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。
