Chest Radiology Department, Santa Casa de Porto Alegre, Porto Alegre, Rio Grande do Sul, Brazil.
AJR Am J Roentgenol. 2012 Sep;199(3):W331-4. doi: 10.2214/AJR.11.8056.
The aim of this study was to show the usefulness of chemical-shift MRI in the diagnosis of intranodular fat in seven patients with pulmonary hamartomas and indeterminate CT findings.
In the setting of chemical-shift MRI, the average nodule signal intensity index of pulmonary hamartomas was 45.3% (SD = 25.5%). The correlation between average nodule signal intensity and CT attenuation in Hounsfield units was -0.94. Chemical-shift MRI could be an important tool for the detection of fat in pulmonary hamartomas with inconclusive CT findings.
本研究旨在展示化学位移 MRI 在 7 例肺错构瘤且 CT 结果不确定的患者中诊断结节内脂肪的作用。
在化学位移 MRI 中，肺错构瘤的平均结节信号强度指数为 45.3%（标准差=25.5%）。平均结节信号强度与 CT 衰减值（以亨氏单位表示）之间的相关性为-0.94。化学位移 MRI 可能是检测 CT 结果不确定的肺错构瘤内脂肪的重要工具。
