Clinical significance of multi-slice spiral CT, MRI combined with gastric contrast-enhanced ultrasonography in the diagnosis of T staging of gastric cancer

• Published in: Clinical & translational oncology 2021-10, Vol.23 (10), p.2036-2045
• Main Authors: Gai, Q. -Z., Li, X. -L., Li, N., Li, L., Meng, Z., Chen, A. -F.
• Format: Article
• Language: English
• Subjects: Adult; Aged; Contrast Media - administration & dosage; Female; Humans; Magnetic Resonance Imaging - methods; Male; Medicine; Medicine & Public Health; Middle Aged; Multidetector Computed Tomography - methods; Multimodal Imaging - methods; Neoplasm Staging - methods; Oncology; Research Article; Sensitivity and Specificity; Stomach Neoplasms - diagnostic imaging; Stomach Neoplasms - pathology; Ultrasonography - methods
• ISSN: 1699-048X; 1699-3055
• DOI: 10.1007/s12094-021-02606-9

Purpose To explore the application value of multi-slice spiral CT (MSCT), magnetic resonance imaging (MRI) combined with gastric contrast-enhanced ultrasonography in the diagnosis of T staging of gastric cancer. Methods The subjects of study were 109 gastric cancer patients with T stages admitted to our hospital for diagnosis and treatment from December 2016 to December 2018. All the patients were examined with MSCT, MRI and gastric contrast-enhanced ultrasonography before operation to observe corresponding imaging results. T staging of gastric cancer patients was conducted according to the examination results, which was then compared with postoperative pathological staging. It was performed to analyze the accuracy of the three diagnostic methods and combined diagnosis of gastric cancer T staging. Results The sensitivity of MSCT in the diagnosis of T staging of gastric cancer was 60.00%, 67.74%, 72.22%, 76.47%, the specificity was 95.24%, 88.46%, 86.30%, 94.56% and the diagnostic coincidence rate was 87.16%, 82.57%, 81.65%, 91.74%; the sensitivity of MRI in the diagnosis of T staging of gastric cancer was 68.00%, 70.97%, 77.78%, 76.47%, the specificity was 92.86%, 88.46%, 91.78%, 95.65%, and the diagnostic coincidence rate was 87.16%, 83.49%, 87.16%, 92.66%; the sensitivity of gastric contrast-enhanced ultrasonography in the diagnosis of T staging of gastric cancer was 80.00%, 83.87%, 86.11%, 82.35%, the specificity was 97.62%, 92.31%, 91.78%, 97.83%, and the diagnostic coincidence rate was 93.58%, 89.91%, 89.91%, 95.41%; the sensitivity of combined MSCT, MRI and gastric contrast-enhanced ultrasonography in the diagnosis of T staging of gastric cancer was 88.00%, 93.55%, 97.22%, 94.12%; the specificity was 100%, 97.44%, 95.89%, 98.91%; and the diagnostic coincidence rate was 97.25%, 96.33%, 96.33%, 98.17%, respectively. Statistical analysis revealed that the sensitivity, specificity and diagnostic coincidence rate of combined detection of the three methods were significantly higher than those of single detection ( P