Mo1068 SCREENING BIOMARKERS ASSOCIATED WITH GASTRIC CANCER AND PRECANCEROUS LESIONS IN HIGH-RISK AREA: CROSS-SECTIONAL STUDY BASED ON POPULATION-COHORT

Zan, Xiangyi; Guo, Qinghong; Ji, Rui; Chen, Zhaofeng; Zheng, Ya; Wang, Yuping; Zhou, Yongning

doi:10.1016/s0016-5085(20)32614-7

Cited by 2 publications

(2 citation statements)

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“…All patients underwent magnetic resonance imaging, multislice spiral CT scan, and enhanced CT scan two weeks before surgery; at the same time, the gastric cancer staging results of patients were diagnosed according to surgical pathology. Patients underwent informed examinations and performed breath-holding exercises before examinations [ 4 , 15 ], using Philips GvmscanIntera1.5 T superconducting MR instrument and 4-channel and 8-channel body phased array coil. The sense technology was used to examine the patient, and the patient fasted for 8 hours and drank plenty of water (about 400 ml); before the examination, intramuscular injection of anisodamine (15 mg) and 250 ml of warm water were performed, the patient was lying down, an 8-channel imaging coil was selected for magnetic resonance imaging, and the coronal and transverse planes were mainly scanned.…”

Section: Methodsmentioning

confidence: 99%

“…MRI scans, especially DWI imaging, show good specificity for the diagnosis of lymph node metastasis. Considering the evaluation value of gastric cancer, MRI is often used as an alternative to MDCT examination, and MRI is less directly used to assess the development of gastric cancer [ 4 ]. A number of previous studies have shown that MDCT has good sensitivity and specificity for evaluating lymph node metastasis, and it is also the most commonly used preoperative evaluation method in clinical practice.…”

Section: Introductionmentioning

confidence: 99%

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Diagnostic Value of Spiral CT and Magnetic Resonance Imaging Scanning in Gastric Cancer and Precancerous Lesions

2022

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In order to explore the diagnostic value of spiral CT and magnetic resonance imaging scanning in gastric cancer and precancerous lesions, the author selected 56 gastric cancer patients treated in a medical center (group) as the experimental subjects, and all patients underwent MRI, multislice spiral CT scan, and enhanced CT scan two weeks before surgery; at the same time, the gastric cancer staging results of patients were diagnosed according to surgical pathology. All patients were examined under the condition of knowledge and performed breath-holding exercise before examination. The status, location, and extent of tumor lesions were evaluated. In comparison of T staging of gastric cancer patients with magnetic resonance scanning imaging and postoperative pathological examination results, among them, T staging of 3 patients did not match the results of pathological examination, the accuracy rates of T staging on magnetic resonance scanning imaging were T 1 = 94.7 % , T 2 = 87.6 % , T 3 = 91.2 % , and T 4 = 94.7 % , and the total accuracy was 92.1%. Comparison of helical CT scan imaging and postoperative pathological examination results is as follows. Among them, T staging of 8 patients did not match the results of pathological examination, 3 patients were ulcerative, 5 were protuberance, the accuracy rates of T staging in spiral CT scan imaging were T 1 = 90.8 % , T 2 = 82.2 % , T 3 = 76.9 % , and T 4 = 87.6 % , and the total accuracy was 84.5%. The total accuracy rate of imaging N staging was 77.5%, and the total accuracy rate of spiral CT scanning imaging N staging was 80.8%. The accuracy rates of M0 and M1 staging in magnetic resonance imaging were 100.0% and 96.5%, respectively, and the accuracy rates of M0 and M1 staging in spiral CT scan imaging were 96.5% and 96.5%, respectively. The accuracy rate of magnetic resonance imaging for the diagnosis of gastric cancer N staging was 77.4%, and the reason for the low accuracy rate was mainly because the enhancement effect was not obvious due to insufficient enhancement. The accuracy rate of spiral CT in diagnosing N staging of gastric cancer was 80.9%, which was mainly due to the small diameter of the middle celiac artery lymph nodes. Magnetic resonance and spiral CT scans have high value in the early diagnosis and staging of gastric cancer.

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Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%