Comparative Study on the Value of Three DWI Scan Sequences of 3.0T Magnetic Resonance in Staging of Gastric Cancer
Accurate staging is critical for effective gastric cancer treatment planning. Conventional DWI (C-DWI) has limitations in image quality due to magnetic field inhomogeneity, which hampers precise T staging. This study aims to compare the image quality and T staging accuracy of C-DWI, TSE-DWI, and ZOOMit-DWI (Z-DWI) sequences in MRI examinations of gastric cancer patients. A prospective study plan to enroll 72 gastric cancer patients undergoing preoperative MRI with C-DWI, TSE-DWI, and Z-DWI sequences using a 3.0 T scanner. Quantitative metrics (ADC, SNR, CNR) and image quality were evaluated. T staging accuracy was assessed by comparing MRI results with postoperative pathological staging using ROC analysis.
• The patient was diagnosed with gastric cancer by pathological biopsy
• No biopsy was taken within 1 week before MR Examination to rule out the effect of bleeding on the image
• No contraindications for MRI examination; And exclude serious heart, liver, kidney, cerebrovascular diseases.