Abstract
This study was aimed to investigate the diagnostic accuracy of magnetic resonance imaging (MRI) based on deep dictionary learning in TNM (tumor, node, and metastasis) staging of renal cell carcinoma. In this study, 82 patients with renal cancer were selected as the research object. The results were diagnosed by deep dictionary learning MRI, and TNM staging was performed by professional imaging personnel. MRI image will be reconstructed after deep dictionary learning to improve its image recognition ability. The pathological diagnosis will be handed over to the physiological pathology laboratory of the hospital for diagnosis. The staging results were compared with the pathological diagnostic staging results, and the results were analyzed by consistency statistics to evaluate the diagnostic value. The results showed that T staging was significantly consistent with the pathological diagnosis. 2 cases were misdiagnosed, and the accuracy rate was 97.56%. Compared with the pathological diagnosis, N staging had less obvious consistency. 10 cases were misdiagnosed, and the accuracy rate was 87.80%. M staging was significantly consistent with the pathological diagnosis. 4 cases were misdiagnosed. The accuracy rate was 95.12%. After laparotomy, it was found that 37 patients had emboli and 45 patients had no emboli, while 40 patients had emboli and 42 patients had no emboli by MRI. The accuracy rate was 96.34%. The results showed that in the evaluation of TNM staging by MRI imaging based on deep dictionary learning in patients with renal cell carcinoma, the diagnostic results of N staging and M staging were highly consistent with the pathological diagnosis, while the diagnostic results of T staging were slightly less accurate, and the diagnostic consistency was good. The results can provide effective support for the clinical application of MRI imaging based on deep dictionary learning as the clinical diagnosis of TNM staging of renal cell carcinoma.
Highlights
IntroductionA renal tumor is a general term for tumor lesions that occur in the kidney that is one of the most common sites of tumors
A renal tumor is a general term for tumor lesions that occur in the kidney that is one of the most common sites of tumors.e renal tumor mostly occurs in renal parenchyma and urinary tubular epithelial system, which is fully known as renal carcinoma (RC) [1]
All cases meeting the access requirements were performed with deep dictionary learning magnetic resonance, and the instrument was an magnetic resonance imaging (MRI) system. e patients were bedridden, and plain scan and dynamic enhanced scan were performed by a scanner. e plain scan was the transverse section (TRA) axis, including the fat sequence made by T2-weighted image (T2WI), the fat sequence without inhibition, and the diffusion-weighted imaging (DWI) sequence. e T2WI was repeated, and the echo time was 800 ms and 60 ms. e layer thickness was 5–7 mm, and the layer spacing was 1.5–2.5 mm. e contrast agent used Gd-DTPA, 15 mL, through the elbow vein group injection, 2 mL/s
Summary
A renal tumor is a general term for tumor lesions that occur in the kidney that is one of the most common sites of tumors. E renal tumor mostly occurs in renal parenchyma and urinary tubular epithelial system, which is fully known as renal carcinoma (RC) [1]. RC generally originates from different parts of renal proximal convoluted tubules and urinary tubules, but does not include tumors from renal parenchyma and renal pelvis tumors. Renal cancer often has no obvious clinical symptoms in the early stage. When there are typical symptoms, such as blood in urine and low back pain, and a small number of patients’ abdominal masses occurring, the disease often develops. About 30% of patients will have paraneoplastic syndrome, with clinical manifestations of abnormal liver function, hypertension, anemia, hypercalcemia, neuromuscular disease, and other
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