Maeda Masayuki, Maier Stephan E
Department of Radiology, Mie University School of Medicine, 2-174 Edobashi, Tsu, Mie 514-8507, Japan.
J Neuroradiol. 2008 May;35(2):71-8. doi: 10.1016/j.neurad.2008.01.080. Epub 2008 Mar 5.
The aim of this review was to determine the usefulness of diffusion-weighted imaging (DWI) and the apparent diffusion coefficient (ADC) in the assessment of head and neck tumors. DWI and the ADC can help in the differential diagnosis of particular disorders (such as carcinomas vs lymphomas, or necrosis vs abscess) of the head and neck. The ADC can also provide further information to help differentiate benign from malignant tumors, as ADC values are usually lower in cases of malignancy. However, the ADC is itself influenced by various complex factors such as the cellularity and matrix of tumors and there is also some overlap between certain benign and malignant tumors of the salivary glands.
本综述的目的是确定扩散加权成像（DWI）和表观扩散系数（ADC）在头颈部肿瘤评估中的效用。DWI和ADC有助于对头颈部特定疾病（如癌与淋巴瘤，或坏死与脓肿）进行鉴别诊断。ADC还可以提供更多信息，以帮助区分良性肿瘤和恶性肿瘤，因为在恶性肿瘤病例中ADC值通常较低。然而，ADC本身会受到多种复杂因素的影响，如肿瘤的细胞密度和基质，并且唾液腺某些良性和恶性肿瘤之间也存在一些重叠。
