磁共振彌散加增強(qiáng)成像技術(shù)與CT動態(tài)增強(qiáng)掃描在結(jié)直腸癌術(shù)前分期中的應(yīng)用價(jià)值比較

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Comparison of the application value of diffusion-enhanced magnetic resonance imaging technology and dynamic contrast-enhanced CT scaninpreoperative stagingofcolorectal cancer

YanJingjing，Song Rongpo， WangJuan

ImagingCenter，theSecondAffliated HospitalofHenanUniversityofScienceandTechnologyLuoyang47000，

China

【Abstract】 Objective To compare the application value of difusion-enhanced magnetic resonance imaging （MRI） and dynamic contrast-enhanced CT scanning in preoperative staging of colorectal cancer.MethodsThe studysubjects were 78 patients with colorectal cancer diagnosed bysurgeryand pathology who visitedour hospital from June 2022 to April 2024. All 78 patients underwent preoperative staging diagnosisusing MRI difusionenhanced imaging and CT dynamic enhanced scanning.The diagnostic accuracy of the two imaging examination methods for preoperative TandN staging of patients was compared.ResultsThe diagnosticaccuracy of MRI diffusion-enhanced imaging technique for preoperative T staging was 92.3% （72/78）， while the diagnostic accuracy of CT dynamic enhanced scanning for preoperative T staging was 75.6% （59/78）.MRI was higher than CT （ χ =8.050， P =0.005）.The diagnostic accuracy of MRI difusion-enhanced imaging technique for preoperative N staging was 82.5% （66/8O），while the diagnostic accuracy of CT dynamic enhanced scan for preoperative Nstaging was 70.0% （20 （56/80）， with MRI being higher than CT（ χ′ =3.451，P=O.036）. ConclusionBoth MRI diffusion-enhanced imaging technology and CT dynamic enhanced scanning have high application value in preoperative staging diagnosis of colorectalcancer.The diagnostic accuracyof MRI diffusion-enhanced imaging technology is higher，and clinical examination methods can be reasonably selected according to the specific situation of patients.

【Key words】 Colorectal cancer;Whole body difusion weighted imaging with background suppression; Dynamic enhanced scan;Tumor node metastasisclassification DOI：10.19522/j.cnki.1671-5098.2025.03.008

結(jié)直腸癌是消化系統(tǒng)常見、高發(fā)的一類惡性腫瘤，其發(fā)病率長期居高不下，對患者的生命健康和生活質(zhì)量造成巨大威脅[1]。（剩余6398字）