Quantitative Evaluation of Intravoxel Incoherent Motion and Diffusion Kurtosis Imaging in Assessment of Pathological Grade of Clear Cell Renal Cell Carcinoma.

Rationale And Objectives: To evaluate the diagnostic value of intravoxel incoherent motion and diffusion kurtosis imaging parameters for clear cell renal cell carcinoma (ccRCC) grading.

Materials And Methods: A total of 60 patients with pathologically proven ccRCC who underwent intravoxel incoherent motion and diffusion kurtosis imaging were retrospectively evaluated. The standard apparent diffusion coefficient (ADC), true diffusivity (D), pseudo-diffusion coefficient (D*), perfusion fraction (f), mean kurtosis (MK), and mean diffusivity (MD) maps were calculated and compared between high-grade and low-grade ccRCC using Mann-Whitney U test.

Differentiation between fat-poor angiomyolipoma and clear cell renal cell carcinoma: qualitative and quantitative analysis using arterial spin labeling MR imaging.

Purpose: To assess the diagnostic effectiveness of arterial spin labeling (ASL) MR imaging in differentiating fat-poor AML from clear cell renal cell carcinoma (ccRCC).

Methods: In this prospective study, 29 ccRCC patients and 9 fat-poor AML patients underwent routine anatomical MRI and ASL at 3T before surgery after signing written informed consent form. For each tumor, tumor blood flow (TBF) was measured in a region of interest (ROI) which was positioned to outline the edge of the target lesions on ASL perfusion maps.

Imaging of mixed epithelial and stromal tumor of the kidney: A case report and review of the literature.

Background: Mixed epithelial and stromal tumors of the kidney (MESTKs) are a rare entity (about a hundred cases reported). They occur almost exclusively in postmenopausal women, with only seven cases reported in men. As this entity is very rare, little is known on its imaging features, especially magnetic resonance imaging (MRI) findings.

Comparative study of intestinal tuberculosis and primary small intestinal lymphoma.

Aim: To characterize the clinical, radiological, endoscopic and pathological features of intestinal tuberculosis (ITB) and primary small intestinal lymphoma (PSIL).

Methods: This was a retrospective study from February 2005 to October 2012 of patients with a diagnosis of ITB (n = 41) or PSIL (n = 37). All patients with ITB or PSIL underwent computed tomography (CT) and pathological examination.

[Assessment of the diagnostic value of CT and X-ray enterography for small intestinal Crohn disease].

Objective: To investigate the value of CT and X-ray enterography in the diagnosis of small intestinal Crohn disease(CD).

Methods: Data of 39 CD cases confirmed by surgery and pathology who underwent CT and X-ray enterography were analyzed retrospectively. All the patients had complete CT data, 28 cases had X-ray intestinal barium meal data, and 18 had sinus tract enterography.

[Differential diagnosis of intestinal tuberculosis and primary small intestinal lymphoma using endoscopy and computerized tomography].

Objective: To analyze the characteristics of intestinal tuberculosis(ITB) and primary small intestinal lymphoma(PSIL) in order to provide clue for the differential diagnosis.

Methods: Data of 24 cases of ITB and 23 cases of PSIL confirmed by surgery and pathology were retrospectively analyzed. The clinical features, endoscopic and CT scan were compared.

[Multi-slice computed tomography diagnosis of collecting duct carcinoma].

Objective: To explore the diagnostic features of collecting duct carcinoma (CDC).

Methods: A total of 7 CDC patients were retrospectively examined by multi-slice computed tomography (MSCT). The relevant diagnostic parameters were assessed.