Detection and Characterization of Metastatic Cervical Adenopathy by MR Imaging: Comparison of Different MR Techniques
Detection and Characterization of Metastatic Cervical Adenopathy by MR Imaging: Comparison of Different MR Techniques
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磁共振成像对转移性宫颈腺病的检测和表征：不同磁共振技术的比较
DOI：
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发表时间：
1990
影响因子：
1.3
通讯作者：
G. Snow
中科院分区：
文献类型：
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作者：
M. V. D. van den Brekel;J. Castelijns;H. V. Stel;J. Valk;Gerard A. Croll;R. Golding;W. Luth;C. Meyer;G. Snow
35例因头颈部鳞状细胞癌接受颈清扫术的患者术前通过磁共振（MR）成像进行评估。获得轴向图像，偶尔获得矢状面和冠状面图像。为了确定最可靠的技术来检测颈部淋巴结转移，我们比较了几个磁共振脉冲序列与Gd-DTPA管理和组织病理学检查结果在颈淋巴结清扫标本。T1加权自旋回波结合T2加权梯度回波（GE）序列被认为是更有用的比任何其他组合的脉冲序列定位淋巴结。在T2加权成像上，淋巴结显示为中到高信号，而肌肉和脂肪组织显示为低信号。钆DTPA增强T1加权GE图像可靠地显示中央淋巴结坏死，淋巴结转移的最具体的标准。
Thirty-five patients scheduled to undergo a neck dissection for squamous cell carcinoma of the head and neck were evaluated preoperatively by magnetic resonance (MR) imaging. Axial and occasionally sagittal and coronal images were obtained. To define the most reliable technique to detect cervical lymph node metastasis, we compared several MR pulse sequences with and without Gd-DTPA administration to histopathologic findings in the neck dissection specimens. T1-weighted spin echo combined with T2-weighted gradient recalled echo (GE) sequences were found to be more useful than any other combination of pulse sequences in localizing lymph nodes. On T2-weighted GE images, lymph nodes were depicted with intermediate to high signal intensity in contrast to low signal muscular and fatty tissue. Gadolinium DTPA enhanced T1-weighted GE images reliably depict central lymph node necrosis, the most specific criterion for lymph node metastasis.