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唐山市人民医院CT室,河北 唐山 063000
收稿:2025-04-08,
纸质出版:2026-03-25
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李志东,曹立秀,马拓等.DWI-MRI与PET在食管癌淋巴结转移诊断中的对比[J].局解手术学杂志,2026,35(03):218-221.
LI Zhi-dong,CAO Li-xiu,MA Tuo,et al.Comparison of diagnostic value of DWI-MRI and PET in lymph node metastasis of esophageal cancer[J].JOURNAL OF REGIONAL ANATOMY AND OPERATIVE SURGERY,2026,35(03):218-221.
李志东,曹立秀,马拓等.DWI-MRI与PET在食管癌淋巴结转移诊断中的对比[J].局解手术学杂志,2026,35(03):218-221. DOI: 10.11659/jjssx.04E025034.
LI Zhi-dong,CAO Li-xiu,MA Tuo,et al.Comparison of diagnostic value of DWI-MRI and PET in lymph node metastasis of esophageal cancer[J].JOURNAL OF REGIONAL ANATOMY AND OPERATIVE SURGERY,2026,35(03):218-221. DOI: 10.11659/jjssx.04E025034.
目的
2
比较弥散加权磁共振成像(DWI-MRI)与正电子发射断层扫描(PET)在食管癌淋巴结转移中的诊断价值。
方法
2
回顾性分析2019年4月至2023年4月本院收治的100例食管鳞状细胞癌患者的临床资料。所有患者均接受DWI-MRI、PET检查,比较两种检查方式临床分期诊断准确性、评估淋巴结转移准确性(敏感度、特异性、阳性预测值、阴性预测值、总体准确性)、评估转移性淋巴结相关特征(节点位置、节点大小、结内癌巢穴大小、结内癌巢穴占据区域)准确性的差异。
结果
2
两种检查方式诊断临床分期的准确率比较,差异无统计学意义(
P
>
0.05),但DWI-MRI检查高估率高于PET检查(
P
<
0.05),低估率低于PET检查(
P
<
0.05)。100例患者中共收集到1 617个淋巴结,存在124个淋巴结转移,最常见的为胃周围腹部及肋部转移(57个,45.97%)。两种检查方式评估淋巴结转移的准确性比较,差异无统计学意义(
P
>
0.05),但DWI-MRI检查敏感度、阴性预测值高于PET检查(
P
<
0.05),特异度、阳性预测值低于PET检查(
P
<
0.05)。在评估淋巴结转移节点位置(中下胸、腹部及肋部)、节点大小
<
5 mm、结内癌巢穴占据区域
<
1/3时,两种检查方式准确率比较,差异无统计学意义(
P
>
0.05),但在评估淋巴结转移节点位置(颈部、上胸)、节点大小≥5 mm、结内癌巢穴大小(
<
5 mm、5~10 mm、
>
10 mm)、结内癌巢穴占据区域≥1/3时,DWI-MRI检查准确率均高于PET检查(
P
<
0.05)。
结论
2
DWI-MRI与PET在评估食管癌淋巴结转移中均具有一定诊断价值,但DWI-MRI评估颈部、上胸部淋巴结转移的相关特征准确性更高。
Objective
2
To compare the diagnostic value of diffusion-weighted magnetic resonance imaging (DWI-MRI) and positron emission tomography (PET) in the lymph node metastasis in esophageal cancer.
Methods
2
A retrospective analysis was performed on the clinical data of 100 patients with esophageal squamous cell carcinoma admitted to our hospital from April 2019 to April 2023.All patients underwent DWI-MRI and PET examinations. The differences in the diagnostic accuracy for clinical staging, the accuracy for evaluating lymph node metastasis (including sensitivity, specificity, positive predictive value, negative predictive value and overall accuracy), and the accuracy for assessing the relevant characteristics of metastatic lymph nodes (including nodal location, nodal size, intranodal cancer nest size and the area occupied by intranodal cancer nests) between the two examination methods were compared.
Results
2
There was no statistically significant difference in the diagnostic accuracy of clinical staging between the two examination methods (
P
>
0.05). However, the overestimation rate of DWI-MRI was higher than that of PET (
P
<
0.05), and its underestimation rate was lower than that of PET (
P
<
0.05).A total of 1617 lymph nodes were collected from the 100 patients, among which 124 were metastatic. Perigastric abdominal and costal lymph node metastasis was the most common type (57 nodes, 45.97%).There was no statistically significant difference in the accuracy of evaluating lymph node metastasis between the two examination methods (
P
>
0.05).The sensitivity and negative predictive value of DWI-MRI were higher than those of PET (
P
<
0.05),while its specificity and positive predictive value were lower than those of PET (
P
<
0.05).There was no statistically significant difference in the diagnostic accuracy between the two examination methods in evaluating the location of metastatic lymph nodes (middle and lower thoracic region, abdominal and costal regions), lymph node size
<
5 mm, and the area occupied by intranodal cancer nests
<
1/3 (
P
>
0.05). However, DWI-MRI showed a significantly hi
gher diagnostic accuracy than PET in assessing the location of metastatic lymph nodes (cervical and upper thoracic regions), lymph node size≥5 mm, intranodal cancer nest size (
<
5 mm, 5~10 mm,
>
10 mm), and the area occupied by intranodal cancer nests≥1/3 (
P
<
0.05).
Conclusion
2
Both DWI-MRI and PET have certain diagnostic value in the evaluation of lymph node metastasis in esophageal cancer, while DWI-MRI demonstrates higher accuracy in assessing the relevant characteristics of lymph node metastasis in the cervical and upper thoracic regions.
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