Contrast-induced acute kidney injury detection system based on in-voxel incoherent motion MRI imaging

Abstract

The invention discloses a contrast-induced acute kidney injury detection system based on in-voxel incoherent motion MRI imaging. According to the system, the output end of a scanning module is connected with the input end of an imaging module; the output end of the imaging module is connected with the input end of a data input module; the output end of the data input module is connected with the input end of a central processing unit; the power output end of a power supply module is connected with the input end of the central processing unit; the output end of the central processing unit is connected with the input end of an image analysis module; and an IVIM model is adopted, so that the problem of large ADC value difference is well solved. For a kidney lesion, if the lesion is strengthened after a gadolinium agent is injected and no fat component is contained in the lesion, the lesion is generally a tumor which needs to be subjected to surgical excision; and IVIM and contrast-enhanced MRI researches are carried out on 31 focuses (15 enhanced ones and 16 non-enhanced ones) of 28 patients, and the accuracy during detection is improved.

Description

technical field [0001] The invention belongs to the technical field of medical detection, in particular to a detection system for acute kidney injury based on intravoxel incoherent motion MRI imaging contrast agent. Background technique [0002] Contrast-induced acute kidney injury (CI-AKI) is a common cause of hospital-acquired acute renal insufficiency. The prevalence of CI-AKI in the general population is <2%, and in high-risk groups (such as diabetic nephropathy, chronic renal insufficiency, cardiac insufficiency, etc.), the prevalence rate can reach 20% to 50%. The IVIM DWI technique was used to evaluate the tissue diffusion coefficient and microvascular perfusion through different quantitative parameters using a double-exponential model, and the diffusion and perfusion were separated. The study found that the diffusion-related parameters D value and ADC value will change dynamically with time. After the injection of hyperosmolar contrast agent diatrizoate meglumin...

AI Technical Summary

Problems solved by technology

[0003] However, common systems use ordinary MRI scans, and the scan efficiency is relatively low. At the same time, common diagnoses are all made manually by doctors, and patient data cannot be referenced, which affects the accuracy of diagnosis.

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