eISSN: 1897-4309
ISSN: 1428-2526
Contemporary Oncology/Współczesna Onkologia
Current issue Archive Manuscripts accepted About the journal Supplements Addendum Special Issues Editorial board Abstracting and indexing Subscription Contact Instructions for authors Ethical standards and procedures
SCImago Journal & Country Rank
2/2020
vol. 24
 
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abstract:
Original paper

The value of multidetector-row computed tomography in lymph node staging of gastric cancer: a preliminary Vietnamese study

Nguyen Van Sang
1
,
Nguyen Minh Duc
2, 3
,
Pham Hong Duc
4
,
Phung Anh Tuan
5

1.
Department of Radiology, Hanoi University of Public Health, Hanoi, Vietnam
2.
Department of Radiology, Pham Ngoc Thach University of Medicine, Ho Chi Minh City, Vietnam
3.
Department of Radiology, Children’s Hospital 2, Ho Chi Minh City, Vietnam
4.
Department of Radiology, Hanoi Medical University, Hanoi, Vietnam
5.
Department of Radiology, Vietnam Military Medical University, Hanoi, Vietnam
Contemp Oncol (Pozn) 24 (2): 125-131
Online publish date: 2020/06/22
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Introduction
Gastric cancer (GC) is the fourth most common malignant disease in the world, following breast cancer, colorectal cancer, and lung cancer. This study aimed to evaluate the usefulness of multidetector-row computed tomography (MDCT) in identifying the metastatic lymph node of GC.

Material and methods
A cross-sectional study was performed after receiving approval by the institutional review board. A total of 88 patients with GC, who underwent radical gastrectomy, were examined by MDCT. Categorical variables were compared using Fisher’s exact test. The discriminating ability of lymph node size was determined according to an area under the receiver operating curve(AUROC) analysis, and the optimal cut-off point was determined.

Results
The proportion of metastatic lymph node patients in the proximal group (32.3%) was significantly higher than that in the distal group (18.4%). T categorisation and lymph node sizes were significantly different between the non-metastatic lymph node and metastatic lymph node groups. The AUROC for lymph node size was 0.738, with an optimal cut-off point of 7.5 mm,producing a sensitivity of 71.5% and a specificity of 70.5%.

Conclusions
MDCT displayed medium accuracy for the determination of metastatic lymph nodes and N categorisation. Based on our findings, although MDCT is generally the first choice for preoperative assessments in GC patients, other diagnostic modalities should supplement MDCT in order to achieve more precise N staging.

keywords:

MDCT, gastric cancer, lymph node, N staging

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