Application of computed tomography and magnetic resonance imaging for the diagnosis of primary retroperitoneal tumors
10.3760/cma.j.cn341190-20240402-00336
- VernacularTitle:CT及MRI在腹膜后原发肿瘤诊断中的应用探讨
- Author:
Duo LIU
1
;
Zhe GONG
1
;
Yulin LIU
1
;
Xuehui REN
1
Author Information
1. 西电集团医院医学影像科，西安 710077
- Publication Type:Journal Article
- Keywords:
Retroperitoneal neoplasms;
Tomography, X-ray computed;
Magnetic resonance imaging;
Biopsy, needle;
Pathology, clinical;
Diagnosis
- From:
Chinese Journal of Primary Medicine and Pharmacy
2025;32(1):65-69
- CountryChina
- Language:Chinese
-
Abstract:
Objective:To investigate the use of computed tomography (CT) and magnetic resonance imaging (MRI) in diagnosing primary retroperitoneal tumors.Methods:The study included 100 patients suspected of having primary retroperitoneal tumors, who were admitted to Xidian Group Hospital between February 2017 and February 2023. All patients underwent pathological biopsy, with the pathological diagnosis serving as the "gold standard." Additionally, each patient underwent both CT and MRI examinations. The diagnostic value of CT and MRI alone or in combination for primary retroperitoneal tumors was compared. Receiver operating characteristic curve was used to analyze the diagnostic efficacy of CT and MRI alone or in combination for primary retroperitoneal tumors.Results:Among the 100 patients with suspected primary retroperitoneal tumors, 90 were pathologically diagnosed with primary retroperitoneal tumors. These included 21 cases of liposarcoma, 18 of schwannoma, 17 of malignant lymphoma, 14 of malignant fibrous histiocytoma, 12 of leiomyoma, and 8 of lipoma. CT confirmed 81 positive cases, MRI confirmed 83 positive cases, and the combined CT and MRI diagnosis identified 89 cases as positive. Receiver operating characteristic curve analysis revealed that the sensitivity and specificity of the combined CT and MRI diagnosis for primary retroperitoneal tumors were 98.9% and 90.0%, respectively, with an area under the curve of 0.944, which was superior to that of either CT or MRI alone.Conclusions:CT and MRI play a crucial role in the diagnosis of primary retroperitoneal tumors. The combined use of these two imaging techniques significantly improves both the sensitivity and specificity of diagnosis.
