Diffusion-weighted magnetic resonance imaging in oral and maxillofacial lesions: preliminary study on diagnostic ability of apparent diffusion coefficient maps
Diffusion-weighted magnetic resonance imaging in oral and maxillofacial lesions: preliminary study on diagnostic ability of apparent diffusion coefficient maps
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DOI：
10.1007/s11282-017-0303-y
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发表时间：
2018-09-01
期刊：
影响因子：
2.2
通讯作者：
Ogura, Ichiro
中科院分区：
文献类型：
--
作者：
Oda, Takaaki;Sue, Mikiko;Ogura, Ichiro
本研究旨在探讨磁共振扩散加权成像（DWI）在口腔颌面部病变中的应用价值，特别是表观扩散系数（ADC）图在口腔颌面部病变鉴别诊断中的应用价值。在1.5 T装置上进行DWI，b因子为0和800 s/mm（2），并生成ADC图。测量了所有57个口腔颌面部病变的ADC值（鳞状细胞癌19例，药物相关性颌骨骨坏死10例，牙源性脓肿6例，囊肿4例，放射性骨坏死4例，血管瘤4例，多形性腺瘤3例，牙源性角化囊肿3例，鼻腭管囊肿2例，恶性黑色素瘤1例，1例基底细胞癌）。（2.69 +/- 0.59 x 10（-3）mm（2）/s）和鼻腭管囊肿（2.34 +/- 0.12 x 10（-3）mm（2）/s）显著高于其他口腔颌面部病变（p = 0.000）。牙源性脓肿的平均ADC值（0.67 +/- 0.36 x 10（-3）mm（2）/s）明显低于其他口腔颌面部病变（p = 0.000）。本研究表明DWI在口腔颌面部病变中的应用价值，尤其是ADC图对这些病变的鉴别诊断。
The aim of this study was to investigate the usefulness of diffusion-weighted magnetic resonance imaging (DWI) in oral and maxillofacial lesions, especially the utility of apparent diffusion coefficient (ADC) maps for differential diagnosis of these lesions.Fifty-seven patients who underwent magnetic resonance imaging for diagnosis of oral and maxillofacial lesions were included in this prospective study. DWI was performed on a 1.5 T unit with b-factors of 0 and 800 s/mm(2), and ADC maps were generated. ADC values were measured for all 57 oral and maxillofacial lesions (19 squamous cell carcinoma, 10 medication-related osteonecrosis of the jaw, 6 odontogenic abscess, 4 ranula, 4 osteoradionecrosis, 4 hemangioma, 3 pleomorphic adenoma, 3 odontogenic keratocyst, 2 nasopalatine duct cyst, 1 malignant melanoma, and 1 basal cell carcinoma).The mean ADC values for ranula (2.69 +/- 0.59 x 10(-3) mm(2)/s) and nasopalatine duct cyst (2.34 +/- 0.12 x 10(-3) mm(2)/s) were significantly higher than those for the other oral and maxillofacial lesions (p = 0.000). In contrast, the mean ADC value for odontogenic abscess (0.67 +/- 0.36 x 10(-3) mm(2)/s) was significantly lower than those for the other oral and maxillofacial lesions (p = 0.000).The present study suggests the usefulness of DWI in oral and maxillofacial lesions, especially the utility of ADC maps for differential diagnosis of these lesions.